ducted propeller
11Kort nozzle — The Kort nozzle is a shrouded, ducted propeller assembly for marine propulsion. The hydrodynamic design of the shroud, which is shaped like a foil, offers advantages for certain conditions over bare propellers.Kort nozzles or ducted propellers… …
12Jet engine — For a general overview of aircraft engines, see Aircraft engine. A Pratt Whitney F100 turbofan engine for the …
13William B. Morgan — Dr. William B. Morgan is an American naval architect and renowned expert in propeller design.Morgan was born in Iowa, received his M.S. in Mechanics and Hydraulics 1951 from the University of Iowa, and a doctorate in Naval Architecture from the… …
14Pleuger rudder — The Pleuger rudder is a power assisted ship s rudder. It creates a flow of water in the direction the rudder points powered by an auxiliary electric motor. This aids manoeuvrability at low speeds greatly, since it operates on a similar principle… …
15Piasecki 16H — Infobox Aircraft name= 16H Pathfinder caption= Piasecki 16H 1 Pathfinder type = Experimental high speed helicopter manufacturer = Piasecki Aircraft designer= first flight = February 21 1962 (16A 1) November 1965 (16A 1A) introduced = retired=… …
16Pump-jet — A pump jet or water jet is a marine system that creates a jet of water for propulsion. The mechanical arrangement may be a ducted propeller with nozzle, or a centrifugal pump and nozzle. The first functioning pump jet engine was created by New… …
17Aérotrain — The Aérotrain was a hovercraft train developed in France from 1965 to 1977. The lead engineer was Jean Bertin.The goal of the Aérotrain was similar to that of the magnetic levitation train: to suspend the train above the tracks so the only… …
18Theodore Theodorsen — Infobox Person name = Theodore Theodorsen image size = 140px birth date = birth date|1897|01|8 birth place = Sandefjord, Norway flagicon|Norway death date = 1978 death place = Long Island, New York, United States flagicon|USA occupation =… …
19List of military aircraft of the United States — This list of military aircraft of the United States includes prototype, pre production and operational types. For aircraft in service, see the List of active United States military aircraft. Prototypes are normally prefixed with X and are often… …
20EDF — can stand for:In science and technology: *Earliest Deadline First, a dynamic scheduling principle used in real time operating systems. *Electric Ducted Fan, an electrically driven impeller or ducted propeller *Empirical distribution function, a… …
