turbine-propeller aircraft engine
31Flying car (aircraft) — For other uses, see: Flying car. For non real (fictional) flying cars, see: Flying car (fiction). Moller Skycar M400 to the right, next to older Moller models …
32Steam engine — A steam engine is a heat engine that performs mechanical work using steam as its working fluid. [ [http://www.britannica.com/EBchecked/topic/564472/steam engine steam engine Britannica Online Encyclopedia ] ] Steam engines have a long history,… …
33Jet aircraft — A jet aircraft is an aircraft propelled by jet engines. Jet aircraft fly much faster than propeller powered aircraft and at higher altitudes as high as 10,000 to 15,000 meters, about 33,000 to convert|49000|ft|m| 2. At these altitudes, jet… …
34Royal Aircraft Establishment — The Royal Aircraft Establishment (RAE) England, was a British research establishment latterly under the UK Ministry of Defence (MOD).The first site was at Farnborough Airfield ( RAE Farnborough ) in Hampshire to which was added a second site RAE… …
35Ram air turbine — A ram air turbine (RAT) is a small turbine and connected hydraulic pump, or electrical generator used as power source for aircraft. In some early aircraft, these were permanently mounted and were the aircraft s principal electrical power source.… …
36Electric aircraft — Infobox Aviation name = Electric aircraft caption = Helios electric powered UAVAn electric aircraft is an aircraft that runs on electric motors rather than internal combustion engines, with electricity coming from fuel cells, solar cells,… …
37Overspeed (engine) — Overspeed is a condition in which an engine is allowed or forced to turn beyond its design limit. The consequences of running an engine too fast vary by engine type and model and depend upon several factors, chief amongst them the duration of the …
38free turbine — A separate turbine that is not mechanically connected to the remainder of the engine, as for example in some turboprop engines that drive the propeller. Arrangements have to be made for braking the propeller, to prevent it from spinning in a wind …
39ram air turbine — A ram air driven turbine used in emergency situations to generate sufficient power to keep an aircraft flying long enough to land. Thus, the RAT performs the same function as an auxiliary power unit (APU). But, whereas an APU is essentially a… …
40Steam aircraft — are aircraft that are propelled by steam engines. They were unusual devices because of the difficulty in producing a powerplant with a high enough power to weight ratio to be practical. They are distinct from airships that use steam as their… …
