Feathering controllable pitch propeller
Feathering propeller especially for sailing boats
Feet-propelled water vehicle
Finboard
Fishline cutter for marine propulsion units
Fitting structure for electrical component part in watercraft
Fixing structure for jet propulsion pump in personal watercraft
Flap linkage
Flap rudder
Flex wing apparatus
Flexible fluid conduit for propeller shaft
Flexibly mounted drive arrangement for ships
Flexoar
Float cycle
Floating seal for high rotational speed propeller shafts...
Floating vessels driven by compressed air
Fluid drive control mechanism
Fluid flow apparatus
Fluid foil system
Fluid motor