Wind-Driven Expedition And Day-Trip Vehicle An optional wind or pedal driven bicycle for two passengers. One of them steers the craft, while the other takes care of the sail. (On this picture, the sail is folded up). The mast can be collapsed if there is a headwind. The vehicle was constructed from scrap bicycles during a workshop at Lyngvig Fyr. Another windcraft was constructed on the island of Samsø.