10.3.7 Except as provided in 10.3.8, in applying the
provisions of paragraph 4.4.2.2 of the LSA
Code and paragraph 6.7.1 of resolution MSC.81(70), part 1, the average body mass of the lifeboat
occupant should be assumed to be 95 kg, with a corresponding seat radius of 265 mm.
10.3.8 Where it can be demonstrated that the average body
mass of the lifeboat occupants differs from 95 kg, the provisions of paragraph 4.4.2.2
of the LSA Code and paragraph 6.7.1 of resolution MSC.81(70), part 1, may be increased or decreased accordingly. The
seat width should be adjusted by 4 mm for each 1 kg difference in average body mass.