Stability • Centre of gravity –boats weight pushing towards water • Centre of buoyancy – upward force –size and shape of hull
Stability • If CG rolls over CB then boat will roll over • This is the AVS
Stability • Keep weight low • CG is lowered • Water ingress creates movable cargo – CG moves
Stability • Sailboat more stable –keel • Keep weight off rigging • Keep water out!
Stability • RM zero • RM max @ 60 • RM decreases as boat heels • AVS RM is zero –boat can right or roll over • Negative RM • RM zero
Stability • Breaking waves!!! • See P50 + 51 Yachtmaster Course Notes Book