Every liferaft launching appliance shall comply with the
requirements of paragraphs 6.1.1 and 6.1.2,
except with regard to embarkation in the stowed position, recovery
for the loaded liferaft and that manual operation is permitted for
turning out the appliance. The launching appliance shall include an
automatic release hook arranged so as to prevent premature release
during lowering and shall release the liferaft when waterborne. The
release hook shall include a capability to release the hook under
load. The on-load release control shall:
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.1 be clearly differentiated from the control
which activates the automatic release function;
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.2 require at least two separate actions to operate;
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.3 with a load of 150 kg on the hook, require
a force of at least 600 and not more than 700 N to release the load,
or provide equivalent adequate protection against inadvertent release
of the hook; and
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.4 be designed such that the crew members on deck
can clearly observe when the release mechanism is properly and completely
set.