satisfied with the safety conditions provided.
Regulation 3
Definitions of Terms used in the Annexes
(1) Length. The length (L) shall be taken as 96 per cent of the
total length on a waterline at 85 per cent of the least moulded depth
measured from the keel as defined in sub-paragraph (5) (a) of this
Regulation, or as the length from the fore side of the stem to the
axis of the rudder stock on that waterline, if that be greater. In
ships designed with a rake of keel the waterline on which this length
is measured shall be parallel to the designed waterline.
(2) Perpendiculars. The forward and after perpendiculars shall be
taken at the forward and after ends of the length (L). The forward
perpendicular shall coincide with the foreside of the stem on the
waterline on which the length is measured.
(3) Amidships. Amidships is at the middle of the length (L).
(4) Breadth. Unless expressly provided otherwise, the breadth (B)
is the maximum breadth of the ship, measured amidships to the moulded
line of the frame in a ship with a metal shell and to the outer
surface of the hull in a ship with a shell of any other material.
(5) Moulded Depth
(a) The moulded depth is the vertical distance measured from the
top of the keel to the top of the freeboard deck beam at side. In wood
and composite ships the distance is measured from the lower edge of
the keel rabbet. Where the form at the lower part of the midship
section is of a hollow character, or where thick garboards are fitted,
the distance is measured from the point where the line of the flat of
the bottom continued inwards cuts the side of the keel.
(b) In ships having rounded gunwales, the moulded depth shall be
measured to the point of intersection of the moulded lines of deck and
sides, the lines extending as though the gunwale were of angular
design.
(c) Where the freeboard deck is stepped and the raised part of
the deck extends over the point at which the moulded depth is to be
determined, the moulded depth shall be measured to a line of reference
extending from the lower part of the deck along a line parallel with
the raised part.
(6) Depth for Freeboard (D)
(a) The depth for freeboard (D) is the moulded depth amidships,
plus the thickness of the freeboard deck stringer plate, where fitted,
plus T(L-S)/L if the exposed freeboard deck is sheathed, where:
T is the mean thickness of the exposed sheathing clear of deck
openings, and
S is the total length of superstructures as defined in
sub-paragraph (10) (d) of this Regulation.
(b) The depth for freeboard (D) in a ship having a rounded
gunwale with a radius greater than 4 per cent of the breadth (B) or
having topsides of unusual form is the depth for freeboard of a ship
having a midship section with vertical topsides and with the same
round of beam and area of topside section equal to that provided by
the actual midship section.
(7) Block Coefficient. The block coefficient (C ) is given by:
b
----------------------------------------------------------------------
| - |
| V |
| C = -------; where |
| b L.B.d |
| 1 |
----------------------------------------------------------------------
-
V is the volume of the moulded displacement of the ship,
excluding bossing, in a ship with a metal shell, and is the volume of
displacement to the outer surface of the hull in a ship with a shell
of any other material, both taken at a moulded draught of d ; and
1
where d is 85 per cent of the least moulded depth.
1
(8) Freeboard. The freeboard assigned is the distance measured
vertically downwards amidships from the upper edge of the deck line to
the upper edge of the related load line.
(9) Freeboard Deck. The freeboard deck is normally the uppermost
complete deck exposed to weather and sea, which has permanent means of
closing all opening`s in the weather part thereof, and below which all
openings in the sides of the ship are fitted with permanent means of
watertight closing. In a ship having a discontinuous freeboard deck,
the lowest line of the exposed deck and the continuation of that line
parallel to the upper part of the deck is taken as the freeboard deck.
At the option of the owner and subject to the approval of the
Administration, a lower deck may be designated as the freeboard deck
provided it is a complete and permanent deck continuous in a fore and
aft direction at least between the machinery space and peak bulkheads
and continuous athwartships. When this lower deck is stepped the
lowest line of the deck and the continuation of that line parallel to
the upper part of the deck is taken as the freeboard deck. When a
lower deck is designated as the freeboard deck, that part of the hull
which extends above the freeboard deck is treated as a superstructure
so far as concerns the application of the conditions of assigment and
the calculation of freeboard. It is from this deck that the freeboard
is calculated.
(10) Superstructure
(a) A superstructure is a decked structure on the freeboard deck,
extending from side to side of the ship or with the side plating not
being inboard of the shell plating more than 4 per cent of the breadth
(B). A raised quarter deck is regarded as a superstructure.
(b) An enclosed superstructure is a superstructure with:
(i) enclosing bulkheads of efficient construction;
(ii) access openings, if any, in these bulkheads fitted with
doors complying with the requirements of Regulation 12;
(iii) all other openings in sides or ends of the superstructure
fitted with efficient weathertight means of closing.
A bridge or poop shall not be regarded as enclosed unless access
is provided for the crew to reach machinery and other working spaces
inside these superstructures by alternative means which are available
at all times when bulkhead openings are closed.
(c) The height of a superstructure is the least vertical height
measured at side from the top of the superstructure deck beams to the
top of the freeboard deck beams.
(d) The length of a superstructure (S) is the mean length of the
part of the superstructure which lies within the length (L).
(11) Flush Deck Ship. A flush deck ship is one which has no
superstructure on the freeboard deck.
(12) Weathertight. Weathertight means that in any sea conditions
water will not penetrate into the ship.
Regulation 4
Deck Line
The deck line is a horizontal line 300 millimetres (12 inches) in
length and 25 millimetres (1 inch) in breadth. It shall be marked
amidships on each side of the ship, and its upper edge shall normally
passes through the point where the continuation outwards of the upper
surface of the freeboard deck intersects the outer surface of the
shell (as illustrated in Figure 1 <*>), provided that the deck line
may be placed with reference to another fixed point on the ship on
condition that the freeboard is correspondingly corrected. The
location of the reference point and the identification of the
freeboard deck shall in all cases be indicated on the International
Load Line Certificate (1966).
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Regulation 5
Load Line Mark
The Load Line Mark shall consist of a ring 300 millimetres (12
inches) in outside diameter and 25 millimetres (1 inch) wide which is
intersected by a horizontal line 450 miilimetres (18 inches) in length
and 25 millimetres (1 inch) in breadth, the upper edge of which passes
through the centre of the ring. The centre of the ring shall be placed
amidships and at a distance equal to the assigned summer freeboard
measured vertically below the upper edge of the deck line (as
illustrated in Figure 2 <*>).
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Regulation 6
Lines to be Used with the Load Line Mark
(1) The lines which indicate the load line assigned in accordance
with these Regulations shall be horizontal lines 230 millimetres (9
inches) in length and 25 millimetres (1 inch) in breadth which extend
forward of, unless expressly provided otherwise, and at right angles
to, a vertical line 25 millimetres (1 inch) in breadth marked at a
distance 540 millimetres (21 inches) forward of the centre of the ring
(as illustrated in Figure 2).
(2) The following load lines shall be used:
(a) The Summer Load Line indicated by the upper edge of the line
which passes through the centre of the ring and also by a line marked
S.
(b) The Winter Load Line indicated by the upper edge of a line
marked W.
(c) The Winter North Atlantic Load Line indicated by the upper
edge of a line marked WNA.
(d) The Tropical Load Line indicated by the upper edge of a Tine
marked T.
(e) The Fresh Water Load Line in summer indicated by the upper
edge of a line marked F. The Fresh Water Load Line in summer is marked
abaft the vertical line. The difference between the Fresh Water Load
Line in summer and the Summer Load Line is the allowance to be made
for loading in fresh water at the other load lines.
(f) The Tropical Fresh Water Load Line indicated by the upper
edge of a line marked TF, and marked abaft the vertical line.
(3) If timber freeboards are assigned in accordance with these
Regulations, the timber load lines shall be marked in addition to
ordinary load lines. These lines shall be horizontal lines 230
millimetres (9 inches) in length and 25 millimetres (1 inch) in
breadth which extend abaft unless expressly provided otherwise, and
are at right angles to, a vertical line 25 millimetres (1 inch) in
breadth marked at a distance 540 millimetres (21 inches) abaft the
centre of the ring (as illustrated in Figure 3 <*>).
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(4) The following timber load lines shall be used:
(a) The Summer Timber Load Line indicated by the upper edge of a
line marked LS.
(b) The Winter Timber Load Line indicated by the upper edge of a
line marked LW.
(c) The Winter North Atlantic Timber Load Line indicated by the
upper edge of a line marked LWNA.
(d) The Tropical Timber Load Line indicated by the upper edge of
a line marked LT.
(e) The Fresh Water Timber Load Line in summer indicated by the
upper edge of a line marked LF and marked forward of the vertical
line.
The difference between the Fresh Water Timber Load Line in summer
and the Summer Timber Load Line is the allowance to be made for
loading in fresh water at the other timber load lines.
(f) The Tropical Fresh Water Timber Load Line indicated by the
upper edge of a line marked LTF and marked forward of the vertical
line.
(5) Where the characteristics of a ship or the nature of the
ship`s service or navigational limits make any of the seasonal lines
inapplicable, these lines may be omitted.
(6) Where a ship is assigned a greater than minimum freeboard so
that the load line is marked at a position corresponding to, or lower
than, the lowest seasonal load line assigned at minimum freeboard in
accordance with the present Convention, only the Fresh Water Load Line
need be marked.
(7) On sailing ships only the Fresh Water Load Line and the
Winter North Atlantic Load Line need be marked (as illustrated in
Figure 4 <*>).
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(8) Where a Winter North Atlantic Load Line is identical with the
Winter Load Line corresponding to the same vertical line, this load
line shall be marked W.
(9) Additional load lines required by other international
conventions in force may be marked at right angles to and abaft the
vertical line specified in paragraph (1) of this Regulation.
Regulation 7
Mark of Assigning Authority
The mark of the Authority by whom the load lines are assigned may
be indicated alongside the load line ring above the horizontal line
which passes through the centre of the ring, or above and below it.
This mark shall consist of not more than four initials to identify the
Authority`s name, each measuring approximately 115 millimetres (4 1/2
inches) in height and 75 millimetres (3 inches) in width.
Regulation 8
Details of Marking
The ring, lines and letters shall be painted in white or yellow
on a dark ground or in black on a light ground. They shall also be
permanently marked on the sides of the ships to the satisfaction of
the Administration. The marks shall be plainly visible and, if
necessary, special arrangements shall be made for this purpose.
Regulation 9
Verification of Marks
The International Load Line Certificate (1966) shall not be
delivered to the ship until the officer or surveyor acting under the
provisions of Article 13 of the present Convention has certified that
the marks are correctly and permanently indicated on the ship`s sides.
Chapter II. CONDITIONS OF ASSIGNMENT OF FREEBOARD
Regulation 10
Information to be Supplied to the Master
(1) The master of every new ship shall be supplied with
sufficient information, in an approved form, to enable him to arrange
for the loading and ballasting of his ship in such a way as to avoid
the creation of any unacceptable stresses in the ship`s structure,
provided that this requirement need not apply to any particular
length, design or class of ship where the Administration considers it
to be unnecessary.
(2) The master of every new ship which is not already provided
with stability information under an international convention for the
safety of life at sea in force shall be supplied with sufficient
information in an approved form to give him guidance as to the
stability of the ship under varying conditions of service, and a copy
shall be furnished to the Administration.
Regulation 11
Superstructure End Bulkheads
Bulkheads at exposed ends of enclosed superstructures shall be of
efficient construction and shall be to the satisfaction of the
Administration.
Regulation 12
Doors
(1) All access openings in bulkheads at ends of enclosed
superstructures shall be fitted with doors of steel or other
equivalent material, permanently and strongly attached to the
bulkhead, and framed, stiffened and fitted so that the whole structure
is of equivalent strength to the unpierced bulkhead and weathertight
when closed. The means for securing these doors weathertight shall
consist of gaskets and clamping devices or other equivalent means and
shall be permanently attached to the bulkhead or to the doors
themselves, and the doors shall be so arranged that they can be
operated from both sides of the bulkhead.
(2) Except as otherwise provided in these Regulations, the height
of the sills of access openings in bulkheads at ends of enclosed
superstructures shall be at least 380 millimetres (15 inches) above
the deck.
Regulation 13
Position of Hatchways, Doorways and Ventilators
For the purpose of the Regulations, two positions of hatchways,
doorways and ventilators are defined as follows:
Position 1 - Upon exposed freeboard and raised quarter decks, and
upon exposed superstructure decks situated forward of a point located
a quarter of the ship`s length from the forward perpendicular.
Position 2 - Upon exposed superstructure decks situated abaft a
quarter of the ship`s length from the forward perpendicular.
Regulation 14
Cargo and Other Hatchways
(1) The construction and the means for securing the
weathertightness of cargo and other hatchways in positions 1 and 2
shall be at least equivalent to the requirements of Regulations 15 and
16 of this Annex.
(2) Coamings and hatchway covers to exposed hatchways on decks
above the superstructure deck shall comply with the requirements of
the Administration.
Regulation 15
Hatchways Closed by Portable Covers and Secured Weathertight
by Tarpaulins and Battening Devices
Hatchway Coamings
(1) The coamings of hatchways closed by portable covers secured
weathertight by tarpaulins and battening devices shall be of
substantial construction, and their height above the deck shall be at
least as follows:
600 millimetres (23 1/2 inches) if in position 1.
450 millimetres (17 1/2 inches) if in position 2.
Hatchway Covers
(2) The width of each bearing surface for hatchway covers shall
be at least 65 millimetres (2 1/2 inches).
(3) Where covers are made of wood the finished thickness shall be
at least 60 millimetres (2 3/8 inches) in association with a span of
not more than 1.5 metres (4.9 feet).
(4) Where covers are made of mild steel the strength shall be
calculated with assumed loads not less than 1.75 metric tons per
square metre (358 pounds per square foot) on hatchways in position 1,
and not less than 1.30 metric tons per square metre (266 pounds per
square foot) on hatchways in position 2, and the product of the
maximum stress thus calculated and the factor 4.25 shall not exceed
the minimum ultimate strength of the material. They shall be so
designed as to limit the deflection to not more than 0.0028 times the
span under these loads.
(5) The assumed loads on hatchways in position 1 may be reduced
to 1 metric ton per square metre (205 pounds per square foot) for
ships of 24 metres (79 feet) in length and shall be not less than 1.75
metric tons per square metre (358 pounds per square foot) for ships of
100 metres (328 feet) in length. The corresponding loads on hatchways
in position 2 may be reduced to 0.75 metric tons per square metre (154
pounds per square foot) and 1.30 metric tons per square metre (266
pounds per square foot) respectively. In all cases values at
intermediate lengths shall be obtained by linear interpolation.
Portable Beams
(6) Where portable beams for supporting hatchway covers are made
of mild steel the strength shall be calculated with assumed loads nut
less than 1.75 metric tons per square metre (358 pounds per squars
fool) on hatchways in position 1 and not less than 1.30 metric tons
per square metre (266 pounds per square foot) on hatchways in position
2 and the product of the maximum stress thus calculated and the factor
5 shall not exceed the minimum ultimate strength of the material. They
shall be so designed as to limit the deflection to not more than
0.0022 times the span under these loads. For ships of not more than
100 metres (328 feet) in length the requirements of paragraph (5) of
this Regulation are applicable.
Pontoon Covers
(7) Where pontoon covers used in place of portable beams and
covers are made of mild steel the strength shall be calculated with
the assumed loads given in paragraph (4) of this Regulation, and the
product of the maximum stress thus calculated and the factor 5 shall
not exceed the minimum ultimate, strength of the material. They shall
be so designed as to limit the deflection to not more than 0.0022
times the span. Mild steel plating forming the lops of covers shall be
not less in thickness than one per cent of the spacing of stiffeners
or 6 millimetres (0.24 inches) if that be greater. For ships of not
more than 100 metres (328 feet) in length the requirements of
paragraph (5) of this Regulation are applicable.
(8) The strength and stiffness of covers made of materials other
than mild steel shall be equivalent to those of mild steel to the
satisfaction of the Administration.
Carriers or Sockets
(9) Carriers or sockets for portable beams shall be of
substantial construction, and shall provide means for the efficient
fitting and securing of the beams. Where rolling types of beams are
used, the arrangements shall ensure that the beams remain properly in
position when the hatchway is closed.
Cleats
(10) Cleats shall be set to fit the taper of the wedges. They
shall be at least 65 millimetres. (2 1/2 inches) wide and spaced not
more than 600 millimetres (23 1/2 inches) centre to centre; the cleats
along each side or end shall be not more than 150 millimetres (6
inches) from the hatch corners.
Battens and Wedges
(11) Battens and wedges shall be efficient and in good condition.
Wedges shall be of tough wood or other equivalent material. They shall
have a taper of not more than 1 in 6 and shall be not less than 13
millimetres (1/2 inch) thick at the toes.
Tarpaulins
(12) At least two lavers of tarpaulin in good condition shall be
provided for each hatchway in position 1 or 2. The tarpaulins shall be
waterproof and of ample strength. They shall be of a material of at
least an approved standard weight and quality.
Security of Hatchway Covers
(13) For all hatchways in position 1 or 2 steel bars or other
equivalent means shall be provided in order efficiently and
independently to secure each section of hatchway covers after the
tarpaulins are battened down. Hatchway covers of more than 1.5 metres
(4.9 feet) in length shall be secured by at least two such securing
appliances.
Regulation 16
Hatchways Closed by Weathertight Covers of Steel
or Other Equivalent Material Fitted with Gaskets
and Clamping Devices
Hatchway Coamings
(1) At positions 1 and 2 the height above the deck of hatchway
coamings fitted with weathertight hatch covers of steel or other
equivalent material fitted with gaskets and clamping devices shall be
as specified in Regulation 15 (1). The height of these coamings may be
reduced, or the coamings omitted entirely, on condition that the
Administration is satisfied that the safety of the ship is not thereby
impaired in any sea conditions. Where coamings are provided they shall
be of substantial construction.
Weathertight Covers
(2) Where weathertight covers are of mild steel the strength
shall be calculated with assumed loads not less than 1.75 metric tons
per square metre (358 pounds per square foot) on hatchways in position
1, and not less than 1.30 metric tons per square metre (266 pounds pet
square foot) on hatchways in position 2, and the product of the
maximum stress thus calculated and the factor of 4.25 shall not exceed
the minimum ultimate strength of the material. They shall be so
designed as to limit the deflection to not more than 0.0028 times the
span under these loads. Mild steel plating forming the tops of covers
shall be not less in thickness than one per cent of the spacing of
stiffeners or 0.6 millimetres (0.24 inches) if that be greater. The
provisions of Regulation 15 (5) are applicable for ships of not more
than 100 metres (328 feet) in length.
3) The strength and stiffness of covers made of materials other
than mild steel shall be equivalent to those of mild steel to the
satisfaction of the Administration.
Means for Securing Weathertightness
(4) The means for securing and maintaining weathertightness shall
be to the satisfaction of the Administration. The arrangements shall
ensure that the tightness can be maintained in any sea conditions, and
for this purpose tests for tightness shall be required at the initial
survey, and may be required at periodical surveys and at annual
inspections or at more frequent intervals.
Regulation 17
Machinery Space Openings
(1) Machinery space openings in position 1 or 2 shall be properly
framed and efficiently enclosed by steel casings of ample strength,
and where the casings are not protected by other structures their
strength shall be specially considered. Access openings in such
casings shall be fitted with doors complying with the requirements of
Regulation 12 (1), the sills of which shall be at least 600
millimetres (23 1/2 inches) above the deck if in position 1, and at
least 380 millimetres (15 inches) above the deck if in position 2.
Other openings in such casings shall be fitted with equivalent covers,
permanently attached in their proper positions.
(2) Coamings of any fiddley, funnel or machinery space ventilator
in an exposed position on the freeboard or superstructure deck shall
be as high above the deck as is reasonable and practicable. Fiddley
openings shall be fitted with strong covers of steel or other
equivalent material permanently attached in their proper positions and
capable of being secured weathertight.
Regulation 18
Miscellaneous Openings in Freeboard and Superstructure Decks
(1) Manholes and flush scuttles in position 1 or 2 or within
superstructures other than enclosed superstructures shall be closed by
substantial covers capable of being made watertight. Unless secured by
closely spaced bolts, the covers shall be permanently attached.
(2) Openings in freeboard decks other than hatchways, machinery
space openings, manholes and flush scuttles shall be protected by an
enclosed superstructure, or by a deckhouse or companionway of
equivalent strength and weathertightness. Any such opening in an
exposed superstructure deck or in the top of a deckhouse on the
freeboard deck which gives access to a space below the freeboard deck
or a space within an enclosed superstructure shall be protected by an
efficient deckhouse or companionway. Doorways in such deck-houses or
companionways shall be fitted with doors complying with the
requirements of Regulation 12 (1).
(3) In position 1 the height above the deck of sills to the
doorways in companionways shall be at least 600 millimetres (23 1/2
inches). In position 2 it shall be at least 380 millimetres (15
inches).
Regulation 19
Ventilators
(1) Ventilators in position 1 or 2 to spaces below freeboard deck
or decks of enclosed superstructures shall have coamings of steel or
other equivalent material, substantially constructed and efficiently
connected to the deck. Where the coaming of any ventilator exceeds 900
millimetres (35 1/2 inches) in height above the deck it shall be
specially supported.
(2) Ventilators passing through superstructures other than
enclosed superstructures shall have substantially constructed coamings
of steel or other equivalent material at the freeboard deck.
(3) Ventilators in position 1 the coamings of which extend to
more than 4.5 metres (14.8 feet) above the deck, and in position 2 the
coamings of which extend to more than 2.3 metres (7.5 feet) above the
deck, need not be fitted with closing arrangements unless specifically
required by the Administration.
(4) Except as provided in paragraph (3) of this Regulation
ventilator openings shall be provided with efficient weathertight
closing appliances. In ships of not more than 100 metres (328 feet) in
length the closing appliances shall be permanently attached; where not
so provided in other ships, they shall be conveniently stowed near the
ventilators to which they are to be fitted. Ventilators in position 1
shall have coamings of a height of at least 900 millimetres (35 1/2
inches) above the deck: in position 2 the coamings shall be of a
height at least 760 millimetres (30 inches) above the deck.
(5) In exposed positions, the height of coamings may be required
to be increased to the satisfaction of the Administration.
Regulation 20
Air Pipes
Where air pipes to ballast and other tanks extend above the
freeboard or superstructure decks, the exposed parts of the pipes
shall be of substantial construction; the height from the deck to the
point where water may have access below shall be at least 760
millimetres (30 inches) on the freeboard deck and 450 millimetres (17
1/2 inches) on the superstructure deck. Where these heights may
interfere with the working of the ship, a lower height may be
approved, provided the Administration is satisfied that the closing
arrangements and other circumstances justify a lower height.
Satisfactory means permanently attached, shall be provided for closing
the openings of the air pipes.
Regulation 21
Cargo Ports and Other Similar Openings
(1) Cargo ports and other similar openings in the sides of ships
below the freeboard deck shall be fitted with doors so designed as to
ensure watertightness and structural integrity commensurate with the
surrounding shell plating. The number of such openings shall be the
minimum compatible with the design and proper working of the ship.
(2) Unless permitted by the Administration, the lower edge of
such openings shall not be below a line drawn parallel to the
freeboard deck at side. which has at its lowest point the upper edge
of the uppermost load line.
Regulation 22
Scuppers, Inlets and Discharges
(1) Discharges led through the shell either from spaces below the
freeboard deck or from within superstructures and deckhouses on the
freeboard deck fitted with doors complying with the requirements of
Regulation 12 shall be fitted with efficient and accessible means for
preventing water from passing inboard. Normally each separate
discharge shall have one automatic non-return valve with a positive
means of closing it from a position above the freeboard deck. Where,
however, the vertical distance from the summer load waterline to the
inboard end of the discharge pipe exceeds 0.01 L, the discharge may
have two automatic non-return valves without positive means of
closing, provided that the inboard valve is always accessible for
examination under service conditions; where that vertical distance
exceeds 0.02 L a single automatic non-return valve without positive
means of closing may be accepted subject to the approval of the
Administration. The means for operating the positive action valve
shall be readily accessible and provided with an indicator showing
whether the valve is open or closed.
(2) In manned machinery spaces main and auxiliary sea inlets and
discharges in connexion with the operation of machinery may be
controlled locally. The controls shall be readily accessible and shall
be provided with indicators showing whether the valves are open or
closed.
(3) Scuppers and discharge pipes originating at any level and
penetrating the shell either more than 450 millimetres (17 1/2 inches)
below the freeboard deck or less than 600 millimetres (23 1/2 inches)
above the summer load waterline shall be provided with a non-return
valve at the shell. This valve, unless required by paragraph (1), may
be omitted if the piping is of substantial thickness.
(4) Scuppers leading from superstructures or deckhouses not
fitted with doors complying with the requirements of Regulation 12
shall be led overboard.
(5) All valves and shell fittings required by this Regulation
shall be of steel, bronze or other approved ductile material. Valves
of ordinary cast iron or similar material are not acceptable. All
pipes to which this Regulation refers shall be of steel or other
equivalent material to the satisfaction of the Administration.
Regulation 23
Side Scuttles
(1) Side scuttles to spaces below the freeboard deck or to spaces
within enclosed superstructures shall be fitted with efficient hinged
inside deadlights arranged so that they can be effectively closed and
secured watertight.
(2) No side scuttle shall be fitted in a position so that its
sill is below a line drawn parallel to the freeboard deck at side and
having its lowest point 2.5 per cent of the breadth (B) above the load
waterline, or 500 millimetres (19 1/2 inches), whichever is the
greater distance.
(3) The side scuttles, together with their glasses, if fitted,
and deadlights, shall be of substantial and approved construction.
Regulation 24
Freeing Ports
(1) Where bulwarks on the weather portions of freeboard or
superstructure decks form wells, ample provision shall be made for
rapidly freeing the decks of water and for draining them. Except as
provided in paragraphs (2) and (3) of this Regulation, the minimum
freeing port area (A) on each side of the ship for each well on the
freeboard deck shall be that given by the following formulae in cases
where the sheer in way of the well is standard or greater than
standard. The minimum area for each well on superstucture decks shall
be one-half of the area given by the formulae.
Where the length of bulwark (l) in the well is 20 metres or less
A= 0.7 + 0.35 l square metres,
where l exceeds 20 metres
A = 0.07 l square metres.
l need in no case be taken as greater than 0.7 L.
If the bulwark is more than 1.2 metres in average height, the
required area shall be increased by 0.004 square metres per metre of
length of well for each 0.1 metre difference in height. If the bulwark
is less than 0.9 metre in average height, the required area may be
decreased by 0.004 square metres per metre of length of well for each
0.1 metre difference in height.
Or, where the length of bulwark (l) in the well is 66 feet or
less
A = 7.6 + 0.115 l square feet,
where l exceeds 66 feet
A = 0.23 l square feet.
l need in no case be taken as greater than 0.7 L.
If the bulwark is more than 3.9 feet in average height, the
required area shall be increased by 0.04 square feet per foot of
length of well for each foot difference in height. If the bulwark is
less than 3 feet in average height, the required area may be decreased
by 0.04 square feet per foot of length for each foot difference in
height.
(2) In ships with no sheer the area calculated according to
paragraph (1) of this Regulation shall be increased by 50 per cent.
Where the sheer is less than the standard the percentage shall be
obtained by linear interpolation.
(3) Where a ship fitted with a trunk does not comply with the
requirements of Regulation 36 (1) (e) or where continuous or
substantially continuous hatchway side coamings are fitted between
detached superstructures the minimum area of the freeing port openings
shall be calculated from the following table:
----------------------------------------------------------------------
| Breadth of hatchway of trunk | Area of freeing ports in |
| in relation to the breadth of ship | relation to the total area of |
| | the bulwarks |
|------------------------------------|-------------------------------|
| 40% or less | 20 % |
|------------------------------------|-------------------------------|
| 75% or more | 10 % |
----------------------------------------------------------------------
The area of freeing ports at intermediate breadths shall be
obtained by linear interpolation.
(4) In ships having superstructures which are open at either or
both ends, adequate provision for freeing the space within such
superstructures shall be provided to the satisfaction of the
Administration.
(5) The lower edges of the freeing ports shall be as near the
deck as practicable. Two-thirds of the freeing port area required
shall be provided in the half of the well nearest the lowest point of
the sheer curve.
(6) All such openings in the bulwarks shall be protected by rails
or bars spaced approximately 230 millimetres (9 inches) apart. If
shutters are fitted to freeing ports, ample clearance shall be
provided to prevent jamming. Hinges shall have pins or bearings of
non-corrodible material. If shutters are fitted with securing
appliances, these appliances shall be of approved construction.
Regulation 25
Protection of the Crew
(1) The strength of the deckhouses used for the accommodation of
the crew shall be to the satisfaction of the Administration.
(2) Efficient guard rails or bulwarks shall be fitted on all
exposed parts of the freeboard and superstructure decks. The height of
the bulwarks or guard rails shall be at least 1 metre (39 1/2 inches)
from the deck, provided that where this height would interfere with
the normal operation of the ship, a lesser height may be approved if
the Administration is satisfied that adequate protection is provided.
(3) The opening below the lowest course of the guard rails shall
not exceed 230 millimetres (9 inches). The other courses shall be not
more than 380 millimetres (15 inches) apart. In the case of ships with
rounded gunwales the guard rail supports shall be placed on the flat
of the deck.
(4) Satisfactory means (in the form of guard rails, life lines,
gangways or underdeck passages, etc.) shall be provided for the
protection of the crew in getting to and from their quarters, the
machinery space and all other parts used in the necessary work of the
ship.
(5) Deck cargo carried on any ship shall be so stowed that any
opening which is in way of the cargo and which gives access to and
from the crew`s quarters, the machinery space and all other parts used
in the necessary work of the ship, can be properly closed and secured
against the admission of water. Effective protection for the crew in
the form of guard rails or life lines shall be provided above the deck
cargo if there is no convenient passage on or below the deck of the
ship.
Regulation 26
Special Conditions of Assignment for Type "A" Ships
Machinery Casings
(1) Machinery casings on Type "A" ships as defined in Regulation
27 shall be protected by an enclosed poop or bridge of at least
standard height, or by a deckhouse of equal height and equivalent
strength, provided that machinery casings may be exposed if there are
no openings giving direct access from the freeboard deck to the
machinery space. A door complying with the requirements of Regulation
12 may, however, be permitted in the machinery casing, provided that
it leads to a space or passageway which is as strongly constructed as
the casing and is separated from the stairway to the engine room by a
second weathertight door of steel or other equivalent material.
Gangway and Access
(2) An efficiently constructed fore and aft permanent gangway of
sufficient strength shall be fitted on Type "A" ships at the level of
the superstructure deck between the poop and the midship bridge or
deckhouse where fitted, or equivalent means of access shall be
provided to carry out the purpose of the gangway, such as passages
below deck. Elsewhere, and on Type "A" ships without a midship bridge,
arrangements to the satisfaction of the Administration shall be
provided to safeguard the crew in reaching all parts used in the
necessary work of the ship.
(3) Safe and satisfactory access from the gangway level shall be
available between separate crew accommodations and also between crew
accommodations and the machinery space.
Hatchways
(4) Exposed hatchways on the freeboard and forecastle decks or on
the tops of expansion trunks on Type "A" ships shall be provided with
efficient watertight covers of steel or other equivalent material.
Freeing Arrangements
(5) Type "A" ships with bulwarks shall have open rails fitted for
at least half the length of the exposed parts of the weather deck or
other effective freeing arrangements. The upper edge of the sheer
strake shall be kept as low as practicable.
(6) Where superstructures are connected by trunks, open rails
shall be fitted for the whole length of the exposed parts of the
freeboard deck.
Chapter III. FREEBOARDS
Regulation 27
Types of Ships
(1) For the purposes of freeboard computation ships shall be
divided into Type "A" and Type "B".
Type "A" ships
(2) A type "A" ship is one which is designed to carry only liquid
cargoes in bulk, and in which cargo tanks have only small access
openings closed by watertight gasketed covers of steel or equivalent
material. Such a ship necessarily has the following inherent features:
(a) high integrity of the exposed deck; and
(b) high degree of safety against flooding, resulting from the
low permeability of loaded cargo spaces and the degree of subdivision
usually provided.
(3) A type "A" ship, if over 150 metres (492 feet) in length, and
designed to have empty compartments when loaded to its summer load
waterline, shall be able to withstand the flooding of any one of these
empty compartments at an assumed permeability of 0.95, and remain
afloat in a condition of equilibrium considered to be satisfactory by
the Administration. In such a ship, if over 225 metres (738 feet) in
length, the machinery space shall be treated as a floodable
compartment but with a permeability of 0.85.
For the guidance of Administrations the following limits may be
regarded as satisfactory:
(a) the final waterline after flooding is below the lower edge of
any opening through which progressive flooding may take place;
(b) the maximum angle of heel due to unsymmetrical flooding is of
the order of 15 degrees;
(c) the metacentric height in the flooded condition is positive.
(4) A Type "A" ship shall be assigned a freeboard not less than
that based on Table A of Regulation 28.
Type "B" Ships
(5) All ships which do not come within the provisions regarding
Type "A" ships in paragraphs (2) and (3) of this Regulation shall be
considered as Type "B" ships.
(6) Type "B" ships, which in position 1 have hatchways fitted
with hatch covers complying with the requirements of Regulation 15 (7)
or 16 shall, except as provided in paragraphs (7) to (10) inclusive of
this Regulation, be assigned freeboards based on Table В of Regulation
28.
(7) Any Type "B" ships of over 100 metres (328 feet) in length
may be assigned freeboards less than those required under paragraph
(6) of this Regulation provided that, in relation to the amount of
reduction granted, the Administration is satisfied that:
(a) the measures provided for the protection of the crew are
adequate;
(b) the freeing arrangements are adequate;
(c) the covers in positions 1 and 2 comply with the provisions of
Regulation 16 and have adequate strength, special care being given to
their sealing and securing arrangements;
(d) the ship, when loaded to its summer load waterline, will
remain afloat in a satisfactory condition of equilibrium after
flooding of any single damaged compartment at an assumed permeability
of 0.95 excluding the machinery space; and
(e) in such a ship, if over 225 metres (738 feet) in length, the
machinery space shall be treated as a floodable compartment but with a
permeability of 0.85.
For the guidance of Administrations in applying sub-paragraphs
(d) and (e) of this paragraph the limits given in sub-paragraphs (3)
(a), (b) and (c) may be regarded as satisfactory.
The relevant calculations may be based upon the following main
assumptions:
- the vertical extent of damage is equal to the depth of the
ship;
- the penetration of damage is not more than B/5;
- no main transverse bulkhead is damaged;
- the height of the centre of gravity above the base line is
assessed allowing for homogeneous loading of cargo holds, and for 50
per cent of the designed capacity of consumable fluids and stores,
etc.
(8) In calculating the freeboards for Type "B" ships which comply
with the requirements of paragraph (7) of this Regulation, the values
from Table B of Regulation 28 shall not be reduced by more than 60 per
cent of the difference between the "B" and "A" tabular values for the
appropriate ship lengths.
(9) The reduction in tabular freeboard allowed under paragraph
(8) of this Regulation may be increased up to the total difference
between the values in Table A and those in Table B of Regulation 28 on
condition that the ship complies with the requirements of Regulation
26 (1), (2), (3), (5) and (6), as if it were a type "A" ship, and
further complies with the provisions of paragraph (7) (a) to (d)
inclusive of this Regulation except that the reference in
sub-paragraph (d) to the flooding of any single damaged compartment
shall be treated as a reference to the flooding of any two adjacent
fare and aft compartments, neither of which is the machinery space.
Also any such ship of over 225 metres (738 feet), in length, when
loaded to its slimmer "load waterline, shall remain afloat in a
satisfactory condition of equilibrium after flooding of the machinery
space, taken alone, at an assumed permeability of 0.85.
(10) Type "B" ships, which in position 1 have hatchways fitted
with hatch covers which comply with the requirements of Regulation 15,
other than paragraph (7), shall be assigned freeboards based upon the
values given in Table B of Regulation 28 increased by the values given
in the following table:
Freeboard increase over tabular freeboard for type "B" ships, for
ships with hatch covers not complying with Regulation 15 (7) or 16
----------------------------------------------------------------------------
| Length | Freeboard | Length | Freeboard | Length | Freeboard |
| of ship | increase | of ship | increase | of ship | increase |
| (metres)| (millimetres)| (metres)| (millimetres)| (metres)| (millimetres)|
|---------|--------------|---------|--------------|---------|--------------|
| 108 and | | | | | |
| below | 50 | 139 | 175 | 170 | 290 |
|---------|--------------|---------|--------------|---------|--------------|
| 109 | 52 | 140 | 181 | 171 | 292 |
|---------|--------------|---------|--------------|---------|--------------|
| 110 | 55 | 141 | 186 | 172 | 294 |
|---------|--------------|---------|--------------|---------|--------------|
| 111 | 57 | 142 | 191 | 173 | 297 |
|---------|--------------|---------|--------------|---------|--------------|
| 112 | 59 | 143 | 196 | 174 | 299 |
|---------|--------------|---------|--------------|---------|--------------|
| 113 | 62 | 144 | 201 | 175 | 301 |
|---------|--------------|---------|--------------|---------|--------------|
| 114 | 64 | 145 | 206 | 176 | 304 |
|---------|--------------|---------|--------------|---------|--------------|
| 115 | 68 | 146 | 210 | 177 | 306 |
|---------|--------------|---------|--------------|---------|--------------|
| 116 | 70 | 147 | 215 | 178 | 308 |
|---------|--------------|---------|--------------|---------|--------------|
| 117 | 73 | 148 | 219 | 179 | 311 |
|---------|--------------|---------|--------------|---------|--------------|
| 118 | 76 | 149 | 224 | 180 | 313 |
|---------|--------------|---------|--------------|---------|--------------|
| 119 | 80 | 150 | 228 | 181 | 315 |
|---------|--------------|---------|--------------|---------|--------------|
| 120 | 84 | 151 | 232 | 182 | 318 |
|---------|--------------|---------|--------------|---------|--------------|
| 121 | 87 | 152 | 236 | 183 | 320 |
|---------|--------------|---------|--------------|---------|--------------|
| 122 | 91 | 153 | 240 | 184 | 322 |
|---------|--------------|---------|--------------|---------|--------------|
| 123 | 95 | 154 | 244 | 185 | 325 |
|---------|--------------|---------|--------------|---------|--------------|
| 124 | 99 | 155 | 247 | 186 | 327 |
|---------|--------------|---------|--------------|---------|--------------|
| 125 | 103 | 156 | 251 | 187 | 329 |
|---------|--------------|---------|--------------|---------|--------------|
| 126 | 108 | 157 | 254 | 188 | 332 |
|---------|--------------|---------|--------------|---------|--------------|
| 127 | 112 | 158 | 258 | 189 | 334 |
|---------|--------------|---------|--------------|---------|--------------|
| 128 | 116 | 159 | 261 | 190 | 336 |
|---------|--------------|---------|--------------|---------|--------------|
| 129 | 121 | 160 | 264 | 191 | 339 |
|---------|--------------|---------|--------------|---------|--------------|
| 130 | 126 | 161 | 267 | 192 | 341 |
|---------|--------------|---------|--------------|---------|--------------|
| 131 | 131 | 162 | 270 | 193 | 343 |
|---------|--------------|---------|--------------|---------|--------------|
| 132 | 136 | 163 | 273 | 194 | 346 |
|---------|--------------|---------|--------------|---------|--------------|
| 133 | 142 | 164 | 275 | 195 | 348 |
|---------|--------------|---------|--------------|---------|--------------|
| 134 | 147 | 165 | 278 | 196 | 350 |
|---------|--------------|---------|--------------|---------|--------------|
| 135 | 153 | 166 | 280 | 197 | 353 |
|---------|--------------|---------|--------------|---------|--------------|
| 136 | 159 | 167 | 283 | 198 | 355 |
|---------|--------------|---------|--------------|---------|--------------|
| 137 | 164 | 168 | 285 | 199 | 357 |
|---------|--------------|---------|--------------|---------|--------------|
| 138 | 170 | 169 | 287 | 200 | 358 |
----------------------------------------------------------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation.
Ships above 200 metres in length shall be dealt with by the
Administration.
Freeboard increase over tabular freeboard for Type "B" ships, for
ships with hatch covers not complying with Regulation 15 (7) or 16
---------------------------------------------------------------------
| Length | Freeboard | Length | Freeboard | Length | Freeboard |
| of ship | increase | of ship | increase | of ship | increase |
| (feet) | (inches) | (feet) | (inches) | (feet) | (inches) |
|-----------|-----------|---------|-----------|---------|-----------|
| 350 | | 450 | 6.4 | 560 | 11.4 |
| and below | 2.0 | 460 | 7.0 | 570 | 11.8 |
| 360 | 2.3 | 470 | 7.6 | 580 | 12.1 |
| 370 | 2.6 | 480 | 8.2 | 590 | 12.5 |
| 380 | 2.9 | 490 | 8.7 | 600 | 12.8 |
| 390 | 3.3 | 500 | 9.2 | 610 | 13.1 |
| 400 | 3.7 | 510 | 9.6 | 620 | 13.4 |
| 410 | 4.2 | 520 | 10.0 | 630 | 13.6 |
| 420 | 4.7 | 530 | 10.4 | 640 | 13.9 |
| 430 | 5.2 | 540 | 10.7 | 650 | 14.1 |
| 440 | 5.8 | 550 | 11.0 | 660 | 14.3 |
---------------------------------------------------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation.
Ships above 660 feet in length shall be dealt with by the
Administration.
(11) A lighter, barge or other ship without independent means of
propulsion shall be assigned a freeboard in accordance with the
provisions of these Regulations. However, in the case of barges which
are unmanned the requirements of Regulations 25, 26 (2) and (3) and 39
shall not apply. Such unmanned barges which have on the freeboard deck
only small access openings closed by watertight gasketed covers of
steel or equivalent material may be assigned freeboards 25 per cent
less than those calculated in accordance with these Regulations.
Regulation 28
Freeboard Tables
Type "A" Ships
(1) The tabular freeboard for type "A" ships shall be determined
from the following table:
TABLE A
Freeboard Table for Type "A" Ships
----------------------------------------------------------------------------------
| Length | Freeboard | Length | Freeboard | Length | Freeboard |
| of ship | (millimetres) | of ship | (millimetres) | of ship | (millimetres) |
| (metres) | | (metres) | | (metres) | |
|----------|---------------|----------|---------------|----------|---------------|
| 24 | 200 | 53 | 478 | 82 | 869 |
|----------|---------------|----------|---------------|----------|---------------|
| 25 | 208 | 54 | 490 | 83 | 883 |
|----------|---------------|----------|---------------|----------|---------------|
| 26 | 217 | 55 | 503 | 84 | 897 |
|----------|---------------|----------|---------------|----------|---------------|
| 27 | 225 | 56 | 516 | 85 | 911 |
|----------|---------------|----------|---------------|----------|---------------|
| 28 | 233 | 57 | 530 | 86 | 926 |
|----------|---------------|----------|---------------|----------|---------------|
| 29 | 242 | 58 | 544 | 87 | 940 |
|----------|---------------|----------|---------------|----------|---------------|
| 30 | 250 | 59 | 559 | 88 | 955 |
|----------|---------------|----------|---------------|----------|---------------|
| 31 | 258 | 60 | 573 | 89 | 969 |
|----------|---------------|----------|---------------|----------|---------------|
| 32 | 267 | 61 | 587 | 90 | 984 |
|----------|---------------|----------|---------------|----------|---------------|
| 33 | 275 | 62 | 600 | 91 | 999 |
|----------|---------------|----------|---------------|----------|---------------|
| 34 | 283 | 63 | 613 | 92 | 1014 |
|----------|---------------|----------|---------------|----------|---------------|
| 35 | 292 | 64 | 626 | 93 | 1029 |
|----------|---------------|----------|---------------|----------|---------------|
| 36 | 300 | 65 | 639 | 94 | 1044 |
|----------|---------------|----------|---------------|----------|---------------|
| 37 | 308 | 66 | 653 | 95 | 1059 |
|----------|---------------|----------|---------------|----------|---------------|
| 38 | 316 | 67 | 666 | 96 | 1074 |
|----------|---------------|----------|---------------|----------|---------------|
| 39 | 325 | 68 | 680 | 97 | 1089 |
|----------|---------------|----------|---------------|----------|---------------|
| 40 | 334 | 69 | 693 | 98 | 1105 |
|----------|---------------|----------|---------------|----------|---------------|
| 41 | 344 | 70 | 706 | 99 | 1120 |
|----------|---------------|----------|---------------|----------|---------------|
| 42 | 354 | 71 | 720 | 100 | 1135 |
|----------|---------------|----------|---------------|----------|---------------|
| 43 | 364 | 72 | 733 | 101 | 1151 |
|----------|---------------|----------|---------------|----------|---------------|
| 44 | 374 | 73 | 746 | 102 | 1166 |
|----------|---------------|----------|---------------|----------|---------------|
| 45 | 385 | 74 | 760 | 103 | 1181 |
|----------|---------------|----------|---------------|----------|---------------|
| 46 | 396 | 75 | 773 | 104 | 1196 |
|----------|---------------|----------|---------------|----------|---------------|
| 47 | 408 | 76 | 786 | 105 | 1212 |
|----------|---------------|----------|---------------|----------|---------------|
| 48 | 420 | 77 | 800 | 106 | 1228 |
|----------|---------------|----------|---------------|----------|---------------|
| 49 | 432 | 78 | 814 | 107 | 1244 |
|----------|---------------|----------|---------------|----------|---------------|
| 50 | 443 | 79 | 828 | 108 | 1260 |
|----------|---------------|----------|---------------|----------|---------------|
| 51 | 455 | 80 | 841 | 109 | 1276 |
|----------|---------------|----------|---------------|----------|---------------|
| 52 | 467 | 81 | 855 | 110 | 1293 |
|----------|---------------|----------|---------------|----------|---------------|
| 111 | 1309 | 162 | 2155 | 213 | 2732 |
|----------|---------------|----------|---------------|----------|---------------|
| 112 | 1326 | 163 | 2169 | 214 | 2741 |
|----------|---------------|----------|---------------|----------|---------------|
| 113 | 1342 | 164 | 2184 | 215 | 2749 |
|----------|---------------|----------|---------------|----------|---------------|
| 114 | 1359 | 165 | 2198 | 216 | 2758 |
|----------|---------------|----------|---------------|----------|---------------|
| 115 | 1376 | 166 | 2212 | 217 | 2767 |
|----------|---------------|----------|---------------|----------|---------------|
| 116 | 1392 | 167 | 2226 | 218 | 2775 |
|----------|---------------|----------|---------------|----------|---------------|
| 117 | 1409 | 168 | 2240 | 219 | 2784 |
|----------|---------------|----------|---------------|----------|---------------|
| 118 | 1426 | 169 | 2254 | 220 | 2792 |
|----------|---------------|----------|---------------|----------|---------------|
| 119 | 1442 | 170 | 2268 | 221 | 2801 |
|----------|---------------|----------|---------------|----------|---------------|
| 120 | 1459 | 171 | 2281 | 222 | 2809 |
|----------|---------------|----------|---------------|----------|---------------|
| 121 | 1476 | 172 | 2294 | 223 | 2817 |
|----------|---------------|----------|---------------|----------|---------------|
| 122 | 1494 | 173 | 2307 | 224 | 2825 |
|----------|---------------|----------|---------------|----------|---------------|
| 123 | 1511 | 174 | 2320 | 225 | 2833 |
|----------|---------------|----------|---------------|----------|---------------|
| 124 | 1528 | 175 | 2332 | 226 | 2841 |
|----------|---------------|----------|---------------|----------|---------------|
| 125 | 1546 | 176 | 2345 | 227 | 2849 |
|----------|---------------|----------|---------------|----------|---------------|
| 126 | 1563 | 177 | 2357 | 228 | 2857 |
|----------|---------------|----------|---------------|----------|---------------|
| 127 | 1580 | 178 | 2369 | 229 | 2865 |
|----------|---------------|----------|---------------|----------|---------------|
| 128 | 1598 | 179 | 2381 | 230 | 2872 |
|----------|---------------|----------|---------------|----------|---------------|
| 129 | 1615 | 180 | 2393 | 231 | 2880 |
|----------|---------------|----------|---------------|----------|---------------|
| 130 | 1632 | 181 | 2405 | 232 | 2888 |
|----------|---------------|----------|---------------|----------|---------------|
| 131 | 1650 | 182 | 2416 | 233 | 2895 |
|----------|---------------|----------|---------------|----------|---------------|
| 132 | 1667 | 183 | 2428 | 234 | 2903 |
|----------|---------------|----------|---------------|----------|---------------|
| 133 | 1684 | 184 | 2440 | 235 | 2910 |
|----------|---------------|----------|---------------|----------|---------------|
| 134 | 1702 | 185 | 2451 | 236 | 2918 |
|----------|---------------|----------|---------------|----------|---------------|
| 135 | 1719 | 186 | 2463 | 237 | 2925 |
|----------|---------------|----------|---------------|----------|---------------|
| 136 | 1736 | 187 | 2474 | 238 | 2932 |
|----------|---------------|----------|---------------|----------|---------------|
| 137 | 1753 | 188 | 2486 | 239 | 2939 |
|----------|---------------|----------|---------------|----------|---------------|
| 138 | 1770 | 189 | 2497 | 240 | 2946 |
|----------|---------------|----------|---------------|----------|---------------|
| 139 | 1787 | 190 | 2508 | 241 | 2953 |
|----------|---------------|----------|---------------|----------|---------------|
| 140 | 1803 | 191 | 2519 | 242 | 2959 |
|----------|---------------|----------|---------------|----------|---------------|
| 141 | 1820 | 192 | 2530 | 243 | 2966 |
|----------|---------------|----------|---------------|----------|---------------|
| 142 | 1837 | 193 | 2541 | 244 | 2973 |
|----------|---------------|----------|---------------|----------|---------------|
| 143 | 1853 | 194 | 2552 | 245 | 2979 |
|----------|---------------|----------|---------------|----------|---------------|
| 144 | 1870 | 195 | 2562 | 246 | 2986 |
|----------|---------------|----------|---------------|----------|---------------|
| 145 | 1886 | 196 | 2572 | 247 | 2993 |
|----------|---------------|----------|---------------|----------|---------------|
| 146 | 1903 | 197 | 2582 | 248 | 3000 |
|----------|---------------|----------|---------------|----------|---------------|
| 147 | 1919 | 198 | 2592 | 249 | 3006 |
|----------|---------------|----------|---------------|----------|---------------|
| 148 | 1935 | 199 | 2602 | 250 | 3012 |
|----------|---------------|----------|---------------|----------|---------------|
| 149 | 1952 | 200 | 2612 | 251 | 3018 |
|----------|---------------|----------|---------------|----------|---------------|
| 150 | 1968 | 201 | 2622 | 252 | 3024 |
|----------|---------------|----------|---------------|----------|---------------|
| 151 | 1984 | 202 | 2632 | 253 | 3030 |
|----------|---------------|----------|---------------|----------|---------------|
| 152 | 2000 | 2U3 | 2641 | 254 | 3036 |
|----------|---------------|----------|---------------|----------|---------------|
| 153 | 2016 | 204 | 2650 | 255 | 3042 |
|----------|---------------|----------|---------------|----------|---------------|
| 154 | 2032 | 205 | 2659 | 256 | 3048 |
|----------|---------------|----------|---------------|----------|---------------|
| 155 | 2048 | 206 | 2669 | 257 | 3054 |
|----------|---------------|----------|---------------|----------|---------------|
| 156 | 2064 | 207 | 2678 | 258 | 3060 |
|----------|---------------|----------|---------------|----------|---------------|
| 157 | 2080 | 208 | 2687 | 259 | 3066 |
|----------|---------------|----------|---------------|----------|---------------|
| 158 | 2096 | 209 | 2696 | 260 | 3072 |
|----------|---------------|----------|---------------|----------|---------------|
| 159 | 2111 | 210 | 2705 | 261 | 3078 |
|----------|---------------|----------|---------------|----------|---------------|
| 160 | 2126 | 211 | 2714 | 262 | 3084 |
|----------|---------------|----------|---------------|----------|---------------|
| 161 | 2141 | 212 | 2723 | 263 | 3089 |
|----------|---------------|----------|---------------|----------|---------------|
| 264 | 3095 | 298 | 3254 | 332 | 3363 |
|----------|---------------|----------|---------------|----------|---------------|
| 265 | 3101 | 299 | 3258 | 333 | 3366 |
|----------|---------------|----------|---------------|----------|---------------|
| 266 | 3106 | 300 | 3262 | 334 | 3368 |
|----------|---------------|----------|---------------|----------|---------------|
| 267 | 3112 | 301 | 3266 | 335 | 3371 |
|----------|---------------|----------|---------------|----------|---------------|
| 268 | 3117 | 302 | 3270 | 336 | 3373 |
|----------|---------------|----------|---------------|----------|---------------|
| 269 | 3123 | 303 | 3274 | 337 | 3375 |
|----------|---------------|----------|---------------|----------|---------------|
| 270 | 3128 | 304 | 3278 | 338 | 3378 |
|----------|---------------|----------|---------------|----------|---------------|
| 271 | 3133 | 305 | 3281 | 339 | 3380 |
|----------|---------------|----------|---------------|----------|---------------|
| 272 | 3138 | 306 | 3285 | 340 | 3382 |
|----------|---------------|----------|---------------|----------|---------------|
| 273 | 3143 | 307 | 3288 | 341 | 3385 |
|----------|---------------|----------|---------------|----------|---------------|
| 274 | 3148 | 308 | 3292 | 342 | 3387 |
|----------|---------------|----------|---------------|----------|---------------|
| 275 | 3153 | 309 | 3295 | 343 | 3389 |
|----------|---------------|----------|---------------|----------|---------------|
| 276 | 3158 | 310 | 3298 | 344 | 3392 |
|----------|---------------|----------|---------------|----------|---------------|
| 277 | 3163 | 311 | 3302 | 345 | 3394 |
|----------|---------------|----------|---------------|----------|---------------|
| 278 | 3167 | 312 | 3305 | 346 | 3396 |
|----------|---------------|----------|---------------|----------|---------------|
| 279 | 3172 | 313 | 3308 | 347 | 3399 |
|----------|---------------|----------|---------------|----------|---------------|
| 280 | 3176 | 314 | 3312 | 348 | 3401 |
|----------|---------------|----------|---------------|----------|---------------|
| 281 | 3181 | 315 | 3315 | 349 | 3403 |
|----------|---------------|----------|---------------|----------|---------------|
| 282 | 3185 | 316 | 3318 | 350 | 3406 |
|----------|---------------|----------|---------------|----------|---------------|
| 283 | 3189 | 317 | 3322 | 351 | 3408 |
|----------|---------------|----------|---------------|----------|---------------|
| 284 | 3194 | 318 | 3325 | 352 | 3410 |
|----------|---------------|----------|---------------|----------|---------------|
| 285 | 3198 | 319 | 3328 | 353 | 3412 |
|----------|---------------|----------|---------------|----------|---------------|
| 286 | 3202 | 320 | 3331 | 354 | 3414 |
|----------|---------------|----------|---------------|----------|---------------|
| 287 | 3207 | 321 | 3334 | 355 | 3416 |
|----------|---------------|----------|---------------|----------|---------------|
| 288 | 3211 | 322 | 3337 | 356 | 3118 |
|----------|---------------|----------|---------------|----------|---------------|
| 289 | 3215 | 323 | 3339 | 357 | 3420 |
|----------|---------------|----------|---------------|----------|---------------|
| 290 | 3220 | 324 | 3342 | 358 | 3422 |
|----------|---------------|----------|---------------|----------|---------------|
| 291 | 3224 | 325 | 3345 | 359 | 3423 |
|----------|---------------|----------|---------------|----------|---------------|
| 292 | 3228 | 326 | 3347 | 360 | 3425 |
|----------|---------------|----------|---------------|----------|---------------|
| 293 | 3233 | 327 | 3350 | 361 | 3427 |
|----------|---------------|----------|---------------|----------|---------------|
| 294 | 3237 | 328 | 3353 | 362 | 3428 |
|----------|---------------|----------|---------------|----------|---------------|
| 295 | 3241 | 329 | 3355 | 363 | 3430 |
|----------|---------------|----------|---------------|----------|---------------|
| 296 | 3246 | 330 | 3358 | 364 | 3432 |
|----------|---------------|----------|---------------|----------|---------------|
| 297 | 3250 | 331 | 3361 | 365 | 3433 |
----------------------------------------------------------------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation.
Ships above 365 metres in length shall be dealt with by the
Administration.
TABLE A
FREEBOARD TABLE FOR TYPE "A" SHIPS
-------------------------------------------------------------------
| Length | Freeboard | Length | Freeboard | Length | Freeboard |
| of ship | (inches) | of ship | (inches) | of ship | (inches) |
| (feet) | | (feet) | | (feet) | |
|---------|-----------|---------|-----------|---------|-----------|
| 80 | 8.0 | 120 | 11.9 | 160 | 16.9 |
|---------|-----------|---------|-----------|---------|-----------|
| 90 | 8.9 | 130 | 13.0 | 170 | 18.3 |
|---------|-----------|---------|-----------|---------|-----------|
| 100 | 9.8 | 140 | 14.2 | 180 | 19.8 |
|---------|-----------|---------|-----------|---------|-----------|
| 110 | 10.8 | 150 | 15.5 | 190 | 21.3 |
|---------|-----------|---------|-----------|---------|-----------|
| 200 | 22.9 | 540 | 86.3 | 880 | 122.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 210 | 24.5 | 550 | 88.0 | 890 | 123.4 |
|---------|-----------|---------|-----------|---------|-----------|
| 220 | 26.2 | 560 | 89.6 | 900 | 124.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 230 | 27.8 | 570 | 91.1 | 910 | 124.6 |
|---------|-----------|---------|-----------|---------|-----------|
| 240 | 29.5 | 580 | 92.6 | 920 | 125.2 |
|---------|-----------|---------|-----------|---------|-----------|
| 250 | 31.1 | 590 | 94.1 | 930 | 125.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 260 | 32.8 | 600 | 95.5 | 940 | 126.2 |
|---------|-----------|---------|-----------|---------|-----------|
| 270 | 34.6 | 610 | 96.9 | 950 | 126.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 280 | 36.3 | 620 | 98.3 | 960 | 127.2 |
|---------|-----------|---------|-----------|---------|-----------|
| 290 | 38.0 | 630 | 99.6 | 970 | 127.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 300 | 39.7 | 640 | 100.9 | 980 | 128.1 |
|---------|-----------|---------|-----------|---------|-----------|
| 310 | 41.4 | 650 | 102.1 | 990 | 128.6 |
|---------|-----------|---------|-----------|---------|-----------|
| 320 | 43.2 | 660 | 103.3 | 1000 | 129.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 330 | 45.0 | 670 | 104.4 | 1010 | 129.4 |
|---------|-----------|---------|-----------|---------|-----------|
| 340 | 46.9 | 680 | 105.5 | 1020 | 129.9 |
|---------|-----------|---------|-----------|---------|-----------|
| 350 | 48.8 | 690 | 106.6 | 1030 | 130.3 |
|---------|-----------|---------|-----------|---------|-----------|
| 360 | 50.7 | 700 | 107.7 | 1040 | 130.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 370 | 52.7 | 710 | 108.7 | 1050 | 131.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 380 | 54.7 | 720 | 109.7 | 1060 | 131.4 |
|---------|-----------|---------|-----------|---------|-----------|
| 390 | 56.8 | 730 | 110.7 | 1070 | 131.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 400 | 58.8 | 740 | 111.7 | 1080 | 132.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 410 | 60.9 | 750 | 112.6 | 1090 | 132.3 |
|---------|-----------|---------|-----------|---------|-----------|
| 420 | 62.9 | 760 | 113.5 | 1100 | 132.6 |
|---------|-----------|---------|-----------|---------|-----------|
| 430 | 65.0 | 770 | 114.4 | 1110 | 132.9 |
|---------|-----------|---------|-----------|---------|-----------|
| 440 | 67.0 | 780 | 115.3 | 1120 | 133.2 |
|---------|-----------|---------|-----------|---------|-----------|
| 450 | 69.1 | 790 | 116.1 | 1130 | 133.5 |
|---------|-----------|---------|-----------|---------|-----------|
| 460 | 71.1 | 800 | 117.0 | 1140 | 133.8 |
|---------|-----------|---------|-----------|---------|-----------|
| 470 | 73.1 | 810 | 117.8 | 1150 | 134.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 480 | 75.1 | 820 | 118.6 | 1160 | 134.3 |
|---------|-----------|---------|-----------|---------|-----------|
| 490 | 77.1 | 830 | 119.3 | 1170 | 134.5 |
|---------|-----------|---------|-----------|---------|-----------|
| 500 | 79.0 | 840 | 120.1 | 1180 | 134.7 |
|---------|-----------|---------|-----------|---------|-----------|
| 510 | 80.9 | 850 | 120.7 | 1190 | 135.0 |
|---------|-----------|---------|-----------|---------|-----------|
| 520 | 82.7 | 860 | 121.4 | 1200 | 135.2 |
|---------|-----------|---------|-----------|---------|-----------|
| 530 | 84.5 | 870 | 122.1 | | |
-------------------------------------------------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation.
Ships above 1200, feet in length shall be dealt with by the
Administration.
Type "B" ships
(2) The tabular freeboard for type "B" ships shall be determined
from the following table:
TABLE B
FREEBOARD TABLE FOR TYPE "B" SHIPS
----------------------------------------------------------------------------------
| Length | Freeboard | Length | Freeboard | Length | Freeboard |
| of ship | (millimetres) | of ship | (millimetres) | of ship | (millimetres) |
| (metres) | | (metres) | | (metres) | |
|----------|---------------|----------|---------------|----------|---------------|
| 24 | 200 | 27 | 225 | 30 | 250 |
|----------|---------------|----------|---------------|----------|---------------|
| 25 | 208 | 28 | 233 | 31 | 258 |
|----------|---------------|----------|---------------|----------|---------------|
| 26 | 217 | 29 | 242 | 32 | 267 |
|----------|---------------|----------|---------------|----------|---------------|
| 33 | 275 | 84 | 960 | 135 | 2000 |
|----------|---------------|----------|---------------|----------|---------------|
| 34 | 283 | 85 | 978 | 136 | 2021 |
|----------|---------------|----------|---------------|----------|---------------|
| 35 | 292 | 86 | 996 | 137 | 2043 |
|----------|---------------|----------|---------------|----------|---------------|
| 36 | 300 | 87 | 1015 | 138 | 2065 |
|----------|---------------|----------|---------------|----------|---------------|
| 37 | 308 | 88 | 1034 | 139 | 2087 |
|----------|---------------|----------|---------------|----------|---------------|
| 38 | 316 | 89 | 1054 | 140 | 2109 |
|----------|---------------|----------|---------------|----------|---------------|
| 39 | 325 | 90 | 1075 | 141 | 2130 |
|----------|---------------|----------|---------------|----------|---------------|
| 40 | 334 | 91 | 1096 | 142 | 2151 |
|----------|---------------|----------|---------------|----------|---------------|
| 41 | 344 | 92 | 1116 | 143 | 2171 |
|----------|---------------|----------|---------------|----------|---------------|
| 42 | 354 | 93 | 1135 | 144 | 2190 |
|----------|---------------|----------|---------------|----------|---------------|
| 43 | 364 | 94 | 1154 | 145 | 2209 |
|----------|---------------|----------|---------------|----------|---------------|
| 44 | 374 | 95 | 1172 | 146 | 2229 |
|----------|---------------|----------|---------------|----------|---------------|
| 45 | 385 | 96 | 1190 | 147 | 2250 |
|----------|---------------|----------|---------------|----------|---------------|
| 46 | 396 | 97 | 1209 | 148 | 2271 |
|----------|---------------|----------|---------------|----------|---------------|
| 47 | 408 | 98 | 1229 | 149 | 2293 |
|----------|---------------|----------|---------------|----------|---------------|
| 48 | 420 | 99 | 1250 | 150 | 2315 |
|----------|---------------|----------|---------------|----------|---------------|
| 49 | 432 | 100 | 1271 | 151 | 2334 |
|----------|---------------|----------|---------------|----------|---------------|
| 50 | 443 | 101 | 1293 | 152 | 2354 |
|----------|---------------|----------|---------------|----------|---------------|
| 51 | 455 | 102 | 1315 | 153 | 2375 |
|----------|---------------|----------|---------------|----------|---------------|
| 52 | 467 | 103 | 1337 | 154 | 2396 |
|----------|---------------|----------|---------------|----------|---------------|
| 53 | 478 | 104 | 1359 | 155 | 2418 |
|----------|---------------|----------|---------------|----------|---------------|
| 54 | 490 | 105 | 1380 | 156 | 2440 |
|----------|---------------|----------|---------------|----------|---------------|
| 55 | 503 | 106 | 1401 | 157 | 2460 |
|----------|---------------|----------|---------------|----------|---------------|
| 56 | 516 | 107 | 1421 | 158 | 2480 |
|----------|---------------|----------|---------------|----------|---------------|
| 57 | 530 | 108 | 1440 | 159 | 2500 |
|----------|---------------|----------|---------------|----------|---------------|
| 58 | 544 | 109 | 1459 | 160 | 2520 |
|----------|---------------|----------|---------------|----------|---------------|
| 59 | 559 | 110 | 1479 | 161 | 2540 |
|----------|---------------|----------|---------------|----------|---------------|
| 60 | 573 | 111 | 1500 | 162 | 2560 |
|----------|---------------|----------|---------------|----------|---------------|
| 61 | 587 | 112 | 1521 | 163 | 2580 |
|----------|---------------|----------|---------------|----------|---------------|
| 62 | 601 | 113 | 1543 | 164 | 2600 |
|----------|---------------|----------|---------------|----------|---------------|
| 63 | 615 | 114 | 1565 | 165 | 2620 |
|----------|---------------|----------|---------------|----------|---------------|
| 64 | 629 | 115 | 1587 | 166 | 2640 |
|----------|---------------|----------|---------------|----------|---------------|
| 65 | 644 | 116 | 1609 | 167 | 2660 |
|----------|---------------|----------|---------------|----------|---------------|
| 66 | 659 | 117 | 1630 | 168 | 2680 |
|----------|---------------|----------|---------------|----------|---------------|
| 67 | 674 | 118 | 1651 | 169 | 2698 |
|----------|---------------|----------|---------------|----------|---------------|
| 68 | 689 | 119 | 1671 | 170 | 2716 |
|----------|---------------|----------|---------------|----------|---------------|
| 69 | 705 | 120 | 1690 | 171 | 2735 |
|----------|---------------|----------|---------------|----------|---------------|
| 70 | 721 | 121 | 1709 | 172 | 2754 |
|----------|---------------|----------|---------------|----------|---------------|
|