1.light weight 2.high strength 3.low water absorption 4.beautiful surface appearance 5.anti- corrosion 1.A centreboard (often called a foil in a modern racing dinghy) is used to provide lift to counter the lateral force from the sails.2.A centreboard is a retractable keel which pivots out of a slot in the hull of a sailboat.3.The retractability allows the centreboard to be raised to operate in ...
