4.2.5.1 Every inflatable liferaft shall be so
constructed that, when fully inflated and floating with the canopy
uppermost, it is stable in a seaway.
4.2.5.2 The stability of the liferaft when in
the inverted position shall be such that it can be righted in a seaway
and in calm water by one person.
4.2.5.3 The stability of the liferaft when loaded
with its full complement of persons and equipment shall be such that
it can be towed at speeds of up to 3 knots in calm water.
4.2.5.4 The liferaft shall be fitted with water
pockets complying with the following requirements:
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.1 the water pockets shall be of a highly visible
colour;
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.2 the design shall be such that the pockets fill
to at Ieast 60% of their capacity within 25 s of deployment;
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.3 the pockets shall have an aggregate capacity
of at least 220 l for liferafts up to 10 persons;
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.4 the pockets for liferafts certified to carry
more than 10 persons shall have an aggregate capacity of not less
than 20 N l where N = number of persons carried; and
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.5 the pockets shall be positioned symmetrically
round the circumference of the liferaft. Means shall be provided to
enable air to readily escape from underneath the liferaft.