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  2. Pneumatic motor - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_motor

    The first mechanically powered submarine, the 1863 French submarine Plongeur, used a compressed-air engine. Musée de la Marine (Rochefort). A pneumatic motor (air motor), or compressed-air engine, is a type of motor which does mechanical work by expanding compressed air. Pneumatic motors generally convert the compressed-air energy to ...

  3. Cabin pressurization - Wikipedia

    en.wikipedia.org/wiki/Cabin_pressurization

    At least two engines provide compressed bleed air for all the plane's pneumatic systems, to provide full redundancy. Compressed air is also obtained from the auxiliary power unit (APU), if fitted, in the event of an emergency and for cabin air supply on the ground before the main engines are started. Most modern commercial aircraft today have ...

  4. Pneumatics - Wikipedia

    en.wikipedia.org/wiki/Pneumatics

    Pneumatics (from Greek πνεῦμα pneuma 'wind, breath') is the use of gas or pressurized air in mechanical systems. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically-powered compressor powers cylinders, air motors, pneumatic actuators, and other ...

  5. Environmental control system - Wikipedia

    en.wikipedia.org/wiki/Environmental_control_system

    In aeronautics, an environmental control system (ECS) of an aircraft is an essential component which provides air supply, thermal control and cabin pressurization for the crew and passengers. Additional functions include the cooling of avionics , smoke detection , and fire suppression .

  6. Aircraft engine - Wikipedia

    en.wikipedia.org/wiki/Aircraft_engine

    An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. [1] Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric ...

  7. Pneudraulics - Wikipedia

    en.wikipedia.org/wiki/Pneudraulics

    Derived from the words hydraulics and pneumatics, pneudraulics is the term used when discussing systems on military aircraft that use either or some combination of hydraulic and pneumatic systems. The science of fluids made of both gas and liquid.

  8. Aircraft systems - Wikipedia

    en.wikipedia.org/wiki/Aircraft_systems

    The hydraulic system is also used to extend and retract landing gear, operate flaps and slats, operate the wheel brakes and steering systems. Hydraulic systems consist of engine driven pumps, fluid reservoirs, oil coolers, valves and actuators. Redundancy for safety is often provided by the use of multiple, isolated systems. [3]

  9. Aircraft engine starting - Wikipedia

    en.wikipedia.org/wiki/Aircraft_engine_starting

    An interesting feature of all three German jet engine designs that saw production of any kind before May 1945: the German BMW 003, Junkers Jumo 004 and Heinkel HeS 011 axial-flow turbojet engine designs was the starter system, which consisted of a Riedel 10 hp (7.5 kW) flat twin two-stroke air-cooled engine hidden in the intake, and essentially ...