4.4.5 Lifeboat freeboard and stability
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4.4.5 Lifeboat freeboard and stability

  4.4.5.1 All lifeboats shall be stable and have a positive GM value when loaded with 50% or the number of persons the lifeboat is permitted to accommodate in their normal positions to one side of the centreline.

  4.4.5.2 Under the condition of loading in paragraph 4.4.5.1:

  • .1 each lifeboat with side openings near the gunwale shall have a freeboard, measured from the waterline to the lowest opening through which the lifeboat may become flooded, of at least 1.5% of the lifeboat's length or 100 mm whichever is greater; and

  • .2 each lifeboat without side openings near the gunwale shall not exceed an angle of heel of 20° and shall have a freeboard measured from the waterline to the lowest opening through which the lifeboat may become flooded of at least 1.5% of the lifeboat's length or 100 mm whichever is greater.

Parent topic: 4.4 General requirements for lifeboats
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