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  2. Tandem-rotor aircraft - Wikipedia

    en.wikipedia.org/wiki/Tandem-rotor_aircraft

    Tandem-rotor helicopters, however, use counter-rotating rotors, with each cancelling out the other's torque. Therefore, all of the power from the engines can be used for lift, whereas a single-rotor helicopter uses some of the engine power to counter the torque. [1] An alternative is to mount two rotors in a coaxial configuration.

  3. Boeing CH-47 Chinook - Wikipedia

    en.wikipedia.org/wiki/Boeing_CH-47_Chinook

    The Boeing CH-47 Chinook is a tandem-rotor helicopter originally developed by American rotorcraft company Vertol and now manufactured by Boeing Defense, Space & Security. The Chinook is a heavy-lift helicopter that is among the heaviest lifting Western helicopters. Its name, Chinook, is from the Native American Chinook people of Oregon and ...

  4. Sikorsky Raider X - Wikipedia

    en.wikipedia.org/wiki/Sikorsky_Raider_X

    The Sikorsky Raider X (stylized in all-caps as RAIDER X) (Sikorsky S-102 [1]) is a compound helicopter concept with two coaxial rotors and a single pusher propeller, designed by the Sikorsky Aircraft division of Lockheed Martin for the United States Army Future Attack Reconnaissance Aircraft (FARA) program. The Raider X concept was announced in ...

  5. Workhorse SureFly - Wikipedia

    en.wikipedia.org/wiki/Workhorse_SureFly

    In October 2018, Workhorse put SureFly for sale and its latest backer, Marathon Asset Management, requires a $4 million liquidity for May 31, 2019. [ 3 ] In December 2019, flight controls specialist Moog Inc. bought the SureFly program for $5 million, interested by the electric power systems more than the aircraft, and will use it as an ...

  6. List of rotorcraft - Wikipedia

    en.wikipedia.org/wiki/List_of_rotorcraft

    This page was last edited on 12 January 2025, at 21:14 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  7. Bell Boeing V-22 Osprey - Wikipedia

    en.wikipedia.org/wiki/Bell_Boeing_V-22_Osprey

    It could also take some helicopter roles by fitting a 600 lb hoist to the ramp and a cabin configuration for 12 non-ambulatory patients and 5 seats for medical attendants. [205] Bell and P&W designed a frame for the V-22 to transport the Pratt & Whitney F135 engine of the F-35. [206] Two CMV-22Bs on the flight deck of USS Carl Vinson in 2023

  8. US State Department approves military helicopter sale to ...

    www.aol.com/news/us-state-department-approves...

    The U.S. State Department approved a foreign military sale to Zambia of military helicopters and related logistics support for an estimated cost of $100 million, the Pentagon said in a statement ...

  9. Piasecki X-49 SpeedHawk - Wikipedia

    en.wikipedia.org/wiki/Piasecki_X-49_SpeedHawk

    The Piasecki X-49 "SpeedHawk" is an American four-bladed, twin-engined experimental high-speed compound helicopter developed by Piasecki Aircraft.The X-49A is based on the airframe of a Sikorsky YSH-60F Seahawk, but utilizes Piasecki's proprietary vectored thrust ducted propeller (VTDP) design and includes the addition of lifting wings.