Editing Propeller (section)

==Propeller variations==

A cleaver is a type of propeller design especially used for boat racing. Its leading edge is formed round, while the [[trailing edge]] is cut straight. It provides little bow lift, so that it can be used on boats that do not need much bow lift, for instance [[Hydroplane (boat)|hydroplanes]], that naturally have enough hydrodynamic bow lift. To compensate for the lack of bow lift, a [[hydrofoil]] may be installed on the lower unit.{{clarify|what lower unit|date=April 2024}}{{cn|date=April 2024}} Hydrofoils reduce bow lift and help to get a boat out of the hole and onto plane.{{clarify|what hole|date=April 2024}}{{cn|date=April 2024}}