Inventors:
Ronald George - Encinitas CA, US
International Classification:
B63B 21/56
Abstract:
A flow-powered platform carries envirosensors, under tether (or remote-transmission) control from one shore, driven by at least one active waterfoil (ideally remotely interchangeable), with surfaces curved horizontally across the flow. Preferably: there are plural foils; the platform is a single unitary body, best a planar flat shallow panel (deterring aft submersion) or volume-enclosing hull; the foil mounts beside, parallelling, the body, depending from and below it, and, if dual, at opposite sides; the foil has at least one force-enhancing flap, tether-adjustably extending longitudinally to trim an effective overall foil surface, and with laterally extending length roughly 0.05 to 0.4 times the waterfoil length, or 3 to 90 cm, best 60 to 250 cm; and the foil has greatest curvature radius, along a longitudinal surface, roughly 2 to 10 m, or forming a lateral excursion from 0.1 to 0.2 times the foil length, or 2½ to 25 cm.