Drive for muscle-powered water craft on hydrofoil basis and fin stroke principle has motor drive partly or entirely replacing muscle-powered drive

摘要

The drive for a muscle powered water craft (1) on a hydrofoil basis creates thrust on the fin stroke principle. The creation of thrust is partly or entirely taken over by a motor drive (2), creating thrust by turning a propeller via a flexible shaft in a rigid curved outer tube, which may be encased in a streamlined cladding.