China Merchants Group has recently signed a contract with China Shipbuilding for two Very Large Crude Carriers (VLCCs) that will sail, powered, in part, by the wind while gliding on a cushion of air bubbles. The two 300,000 DWT tankers … Continue reading
Tag Archives: rigid wing sails
Early airplane wings were built of canvas stretched over a wooden frame, held together with wire rigging. Modern airplane wings are built of aluminum and other metals. The comparison to sails, masts and rigging on ships may not apply directly. Nevertheless, the … Continue reading