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  2. Lockheed C-5 Galaxy - Wikipedia

    en.wikipedia.org/wiki/Lockheed_C-5_Galaxy

    The Lockheed C-5 Galaxy is a large military transport aircraft designed and built by Lockheed, and now maintained and upgraded by its successor, Lockheed Martin.It provides the United States Air Force (USAF) with a heavy intercontinental-range strategic airlift capability, one that can carry outsized and oversized loads, including all air-certifiable cargo.

  3. Undercarriage arrangements - Wikipedia

    en.wikipedia.org/wiki/Undercarriage_arrangements

    Nose section Center section Example 717, 727, 737: 6 wheels [1x2]+[2x2] A Boeing 737 from Southwest Airlines: 747: 18 wheels [1x2]+[4x4] A Boeing 747-400's main landing gear. Note the toes-up bias angle of the bogies on the wing gear, to ensure correct stowage upon retraction: 707, 720, 757, 767, 787: 10 wheels [1x2]+[2x4] A Boeing 757-200 from ...

  4. Landing gear - Wikipedia

    en.wikipedia.org/wiki/Landing_gear

    The landing gear represents 2.5 to 5% of the maximum takeoff weight (MTOW) and 1.5 to 1.75% of the aircraft cost, but 20% of the airframe direct maintenance cost. A suitably-designed wheel can support 30 t (66,000 lb), tolerate a ground speed of 300 km/h and roll a distance of 500,000 km (310,000 mi) ; it has a 20,000 hours time between overhaul and a 60,000 hours or 20 year life time.

  5. Oleo strut - Wikipedia

    en.wikipedia.org/wiki/Oleo_strut

    A steel coil spring stores impact energy from landing and then releases it, while an oleo strut instead absorbs this energy, reducing bounce. [3] [4] As the strut compresses, the spring rate increases dramatically because the air is being compressed. The viscosity of the oil damps the rebound movement. [5] [6]

  6. Pushback (aviation) - Wikipedia

    en.wikipedia.org/wiki/Pushback_(aviation)

    The tow bar is fixed laterally at the nose landing gear, but may move slightly vertically for height adjustment. At the end that attaches to the tug, the tow bar may pivot freely laterally and vertically. In this manner the tow bar acts as a large lever to rotate the nose landing gear.

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    mail.aol.com

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  8. Thrust reversal - Wikipedia

    en.wikipedia.org/wiki/Thrust_reversal

    The Lockheed C-5 Galaxy, introduced in 1969, also has in-flight reverse capability, although on the inboard engines only. [15] The Saab 37 Viggen (retired in November 2005) also had the ability to use reverse thrust both before landing, to shorten the needed runway, and taxiing after landing, allowing many Swedish roads to double as wartime ...

  9. Conventional landing gear - Wikipedia

    en.wikipedia.org/wiki/Conventional_landing_gear

    A nose-over accident with Polikarpov I-15 bis A replica World War 1 F.E.2 fighter. This aircraft uses a tailskid. The small wheel at the front is a safety device intended to prevent nose-over accidents. The conventional landing gear arrangement has disadvantages compared to nosewheel aircraft. [2]