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  2. Centre stick - Wikipedia

    en.wikipedia.org/wiki/Centre_stick

    A fly-by-wire centre stick in a preproduction Eurofighter Typhoon cockpit Central forward area of the Mirage III cockpit, showing a centre stick. A centre stick (or center stick in the United States), or simply control stick, is an aircraft cockpit arrangement where the control column (or joystick) is located in the center of the cockpit either between the pilot's legs or between the pilots ...

  3. List of active United States Air Force aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_active_United...

    79 aircraft (maximum number of aircraft planned for deployment) Of these, 4 are deployed and the remaining 75 are on order. [4] UH-1N Iroquois: United States utility 63 63 UH-1N total force as of September 2023 (USAF Almanac). [1] 64 UH-1N operational (WAF 2025). [2] V-22 Osprey: United States CSAR CV-22B: 52

  4. Flywheel energy storage - Wikipedia

    en.wikipedia.org/wiki/Flywheel_energy_storage

    NASA G2 flywheel. Flywheel energy storage (FES) works by accelerating a rotor to a very high speed and maintaining the energy in the system as rotational energy.When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the ...

  5. Dual-mass flywheel - Wikipedia

    en.wikipedia.org/wiki/Dual-mass_flywheel

    Dual-mass flywheel section. A dual-mass flywheel (DMF or DMFW) is a rotating mechanical device that is used to provide continuous energy (rotational energy) in systems where the energy source is not continuous, the same way as a conventional flywheel acts, but damping any violent variation of torque or revolutions that could cause an unwanted vibration.

  6. List of aircraft structural failures - Wikipedia

    en.wikipedia.org/wiki/List_of_aircraft...

    Metal fatigue and aircraft design flaw 6 Structural failure of the right horizontal stabiliser due to metal fatigue and aircraft design flaw 1978-06-26 Helikopter Service Flight 165: North Sea, Norway Sikorsky S-61: Fatigue 18 Rotor blade loosened after fatigue to the knuckle joint: crashed into the sea [10] 1979-05-25 American Airlines Flight 191

  7. Undercarriage arrangements - Wikipedia

    en.wikipedia.org/wiki/Undercarriage_arrangements

    Aircraft Wheels and Configuration 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 ...

  8. Flywheel - Wikipedia

    en.wikipedia.org/wiki/Flywheel

    Trevithick's 1802 steam locomotive, which used a flywheel to evenly distribute the power of its single cylinder. A flywheel is a mechanical device that uses the conservation of angular momentum to store rotational energy, a form of kinetic energy proportional to the product of its moment of inertia and the square of its rotational speed.

  9. List of accidents and incidents involving military aircraft ...

    en.wikipedia.org/wiki/List_of_accidents_and...

    The aircraft had just completed a scheduled Factory Maintenance Visit at the Boeing facility in Wichita. [239] 16 January U.S. Navy LCDR. Dick Oliver crashes Grumman F-11A Tiger, Blue Angel Number 5, BuNo 141869, doing a dirty roll during practice, but receives minor injuries. The new aircraft 5 became BuNo 141859, which he flies on the ...