propulsion duct
81Kort 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… …
82NACA cowling — Curtiss AT 5A Hawk with NACA cowling at the Langley Memorial Aeronautical Laboratory, October 1928 …
83Chase, Maryland rail wreck — Infobox rail accident title= Chase, Maryland rail wreck date= 13:04, January 4, 1987 location= Chase, Maryland coordinates= coord|39|22|35|N|76|21|25|W| line = Northeast Corridor cause= disregard of a signal trains= Virginia Service pax= about… …
84Focke Wulf Schnellflugzeug — The Focke Wulf Schnellflugzeug was a design for an experimental aircraft.Professor Henrich Focke of the Focke Wulf company was one of the greatest and most creative pioneers of autogyroes and helicopters of his time. He left Focke Wulf and formed …
85Metal Gear (fictional mecha weapon) — Metal Gear is the name for a series of fictional mecha in the Metal Gear series. [Jeremy Parish, “Metal Gear,” Electronic Gaming Monthly 225 (January 2008): 93.] [ Snakes and Gears: A Metal Gear Overview, Game Informer 182 (June 2008): 107.]… …
86Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is …
87Trijet — A trijet is an aircraft powered by three jet engines. Early twin jet designs were limited by the FAA s ETOPS/LROPS 60 minute rule , whereby the flight path of twin engined jetliners was restricted to within 60 minutes flying time from a suitable… …
88Kh-35 — Infobox Weapon is missile=yes name=Kh 35 Uran caption= origin= type=Anti ship missile service= used by= manufacturer=JSC Tactical Missiles Corporation unit cost= production date= service=1983 engine=turbofan weight=480 kg length=3.75 m… …
89List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …
90History of the internal combustion engine — Various scientists and engineers contributed to the development of internal combustion engines: [ Otto engines running at the Western Minnesota Steam Threshers Reunion (WMSTR), in Rollag, Minnesota. (2min 16sec, 320x240, 340kbps video)] *1206: Al …
