11.5.1 Stability Tests
Clasification Society 2024 - Version 9.40
Statutory Documents - MCA Publications - MGN 280 - Small Vessels in Commercial Use for Sport or Pleasure, Workboats and Pilot Boats - Alternative Construction Standards - 11 Intact Stability - 11.5 Inflatable Boats or Boats Fitted With a Buoyant Collar - 11.5.1 Stability Tests

11.5.1 Stability Tests

  11.5.1.1 The tests should be carried out with all the vessels' equipment, fuel, cargo, activity related equipment (e.g. diving equipment) and number of persons for which it is to be certificated, on-board. The engine, equipment and cargo may be replaced by an equivalent mass. Each person may be substituted by a mass of 75kg for the purpose of the tests:-

  11.5.1.2 The maximum number of persons for which a boat is certified should be crowded to one side, with half this number seated on the buoyancy tube. This procedure should be repeated with the persons seated on the other side and at each end of the inflatable boat, rigid inflatable boat or vessel with a buoyant collar. For the purposes of these tests the cargo, or equivalent alternative mass, should be retained at its normal stowage position. In each case the freeboard to the top of the buoyancy tube should be recorded. Under these conditions the freeboard should be positive around the entire periphery of the boat.


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