Bristol-based maritime engineering start-up WingTek has just won a £2.2m ($2.8m) innovation grant to develop the WingTek Wingsail. The project will deliver two full-size operational prototypes, one on-shore for long-term testing and development and a second unit installed on a commercial UK vessel for sea-trials. Smart Green Shipping, another UK wind propulsion specialist, has started on-land testing of its FastRig technology, an aluminium wingsail, whose