BM has various meanings in the Force category. Discover the full forms, definitions, and usage contexts of BM in Force.
Assistant to a boatswain A petty officer whose duties are to repeat all orders and 'pipes', and to assist the officer of the watch
ForceThe result of vertical forces acting on a ship as a result of local differences between weight and buoyancy. The total of these forces should be zero, otherwise change of draft will occur.
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