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  2. Sikorsky UH-60 Black Hawk - Wikipedia

    en.wikipedia.org/wiki/Sikorsky_UH-60_Black_Hawk

    Its external lift capacity increased by 1,000 lb (450 kg) up to 9,000 lb (4,100 kg). The UH-60L also incorporated the SH-60B's automatic flight control system (AFCS) for better flight control with more powerful engines. [10] Production of the L-model began in 1989. [9] UH-60s equipped with M60 machine guns near An Najaf, Iraq, May 2005.

  3. Sikorsky MH-53 - Wikipedia

    en.wikipedia.org/wiki/Sikorsky_MH-53

    The Sikorsky MH-53 Pave Low series is a retired long-range special operations and combat search and rescue (CSAR) helicopter for the United States Air Force.The series was upgraded from the HH-53B/C, variants of the Sikorsky CH-53 Sea Stallion.

  4. Retreating blade stall - Wikipedia

    en.wikipedia.org/wiki/Retreating_blade_stall

    Retreating blade stall is a hazardous flight condition in helicopters and other rotary wing aircraft, where the retreating rotor blade has a lower relative blade speed, combined with an increased angle of attack, causing a stall and loss of lift.

  5. Rotorcraft - Wikipedia

    en.wikipedia.org/wiki/Rotorcraft

    Some rotary wing aircraft are designed to stop the rotor for forward flight so that it then acts as a fixed wing. For vertical flight and hovering it spins to act as a rotary wing or rotor, and for forward flight at speed it stops to act as a fixed wing providing some or all of the lift required. Additional fixed wings may also be provided to ...

  6. Disk loading - Wikipedia

    en.wikipedia.org/wiki/Disk_loading

    This energy transfer from the rotor to the air is the induced power loss of the rotary wing, which is analogous to the lift-induced drag of a fixed-wing aircraft. Conservation of linear momentum relates the induced velocity downstream in the far wake field to the rotor thrust per unit of mass flow .

  7. Helicopter rotor - Wikipedia

    en.wikipedia.org/wiki/Helicopter_rotor

    The first successful attempt at a single-lift rotor helicopter design used a four-blade main rotor, as designed by Soviet aeronautical engineers Boris N. Yuriev and Alexei M. Cheremukhin, both working at the Tsentralniy Aerogidrodinamicheskiy Institut (TsAGI, the Central Aerohydrodynamic Institute) near Moscow in the early 1930s.

  8. List of airliners by maximum takeoff weight - Wikipedia

    en.wikipedia.org/wiki/List_of_airliners_by...

    Type MTOW [kg] MLW [tonnes] TOR [m] LR [m] ICAO category FAA category; Antonov An-225: 640,000: 591.7: 3,500: Super: Super Scaled Composites Model 351 Stratolaunch

  9. Lockheed F-104 Starfighter - Wikipedia

    en.wikipedia.org/wiki/Lockheed_F-104_Starfighter

    The Lockheed F-104 Starfighter is an American single-engine, supersonic interceptor which was extensively deployed as a fighter-bomber during the Cold War.Created as a day fighter by Lockheed as one of the "Century Series" of fighter aircraft for the United States Air Force (USAF), it was developed into an all-weather multirole aircraft in the early 1960s and produced by several other nations ...

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