(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 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:
(7) Type 'B' ships, which
in position 1 have hatchways fitted with hatch covers complying with
the requirements of Regulations 15(7) or 16, shall, except as provided in paragraphs (8) to (13) inclusive of
this Regulation, be assigned freeboards based on Table B of Regulation
28.
(8) Any Type 'B' ship of
over 100 metres (328 feet) in length may be assigned freeboards less
than those required under paragraph (7) 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;
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(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; and
-
(d) the ship, when loaded to its summer load water-line,
shall be able to withstand the flooding of any compartment or compartments,
with an assumed permeability of 0.95, consequent upon the damage assumptions
specified in paragraph (12) of
this Regulation, and shall remain afloat in a satisfactory condition
of equilibrium as specified in paragraph
(13) of this Regulation. In such a ship, if over 150 metres
(492 feet) in length, the machinery space shall be treated as a floodable
compartment, but with a permeability of 0.85.
(9) In calculating the freeboards
for Type 'B' ships which comply with the requirements of paragraphs (8), (11), (12) and (13) 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.
(10)
-
(a) The reduction in tabular freeboard allowed
under paragraph (9) 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:
-
(i)
Regulation 26 other
than paragraph (4) as if it were a Type 'A' ship;
-
(ii)
paragraphs (8), (11) and (13) of this Regulation; and
-
(iii)
paragraph
(12) of this Regulation, provided that throughout the length
of the ship any one transverse bulkhead will be assumed to be damaged,
such that two adjacent fore and aft compartments shall be flooded
simultaneously, except that such damage will not apply to the boundary
bulkheads of a machinery space.
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(b) In such a ship, if over 150 metres (492 feet)
in length, the machinery space shall be treated as a floodable compartment,
but with a permeability of 0.85.