LSA Code, paragraph 1.1.4 (Free-fall
certification height):
"Free-fall certification height is the greatest launching
height for which the lifeboat is to be approved, measured from the
still water surface to the lowest point on the lifeboat when the lifeboat
is in the launch configuration."
LSA Code, section 4.7.3 (Performance
requirements):
"4.7.3.1
Each free-fall lifeboat
shall make positive headway immediately after water entry and shall
not come into contact with the ship after a free-fall launching against
a trim of up to 10° and a list of up to 20° either way from
the certification height when fully equipped and loaded …
4.7.3.2
For oil tankers, chemical
tankers and gas carriers with a final angle of heel greater than 20°
calculated in accordance with the International Convention for the
Prevention of Pollution from Ships, 1973, as modified by the Protocol
of 1978 relating thereto, and the recommendations of the Organization,*
as applicable, a lifeboat shall be capable of being free-fall launched
at the final angle of heel and on the base of the final waterline
of that calculation."
LSA Code, paragraph 6.1.1.1
(Launching and embarkation appliances):
"With the exception of the secondary means of launching
for free-fall lifeboats, each launching appliance shall be so arranged
that the fully equipped survival craft or rescue boat it serves can
be safely launched against unfavourable conditions of trim of up to
10° and a list of up to 20° either way …"
LSA Code, paragraph 6.1.4.4
(Launching appliances for free-fall lifeboats):
"The launching appliance shall be designed and arranged
so that in its ready to launch position, the distance from the lowest
point on the lifeboat it serves to the water surface with the ship
in its lightest seagoing condition does not exceed the lifeboat's
free-fall certification height, taking into consideration the requirements
of paragraph 4.7.3."
"Lightest seagoing condition is the loading condition
with the ship on even keel, without cargo, with 10 per cent stores
and fuel remaining and in the case of a passenger ship with the full
number of passengers and crew and their luggage."