Kort Nozzle with MARIN 37 profile by ttsalo

Last crawled date: 4 years, 3 months ago

This is a http://en.wikipedia.org/wiki/Kort_nozzle for a boat or submersible propeller. The purpose of this is to increase the thrust at low speeds. These are commonly used in commercial ROVs.
The profile is Maritime Research Institute Netherlands (MARIN) No. 37, which sacrifices some forwards thrust for better backwards thrust.