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  2. Flight airspeed record - Wikipedia

    en.wikipedia.org/wiki/Flight_airspeed_record

    The Lockheed SR-71 Blackbird is the current record-holder for a crewed airbreathing jet aircraft. An air speed record is the highest airspeed attained by an aircraft of a particular class. The rules for all official aviation records are defined by Fédération Aéronautique Internationale (FAI), [ 1 ] which also ratifies any claims.

  3. List of ultralight helicopters - Wikipedia

    en.wikipedia.org/wiki/List_of_ultralight_helicopters

    Voytovich helicopter Ukraine [31] Kazachok Helicopter Russia [32] Kazan Aktai: Russia Rotorfly Russia [33] Berkut (helicopter) Russia FLY CC III Czech Republic [34] jpkrucker Canada Single seat coaxial heli [35] Mosquito XE: Canada / United States Hungarocopter HC-01: Hungary [36] Hungarocopter HC-02: Hungary [37] CoaX helicopters Australia [38 ...

  4. List of vehicle speed records - Wikipedia

    en.wikipedia.org/wiki/List_of_vehicle_speed_records

    Aircraft speed records are based on true airspeed, rather than ground speed. HTV-2 (artist rendering), the fastest uncrewed aerial vehicle North American X-15 , the fastest piloted rocket-powered aircraft

  5. Fastest propeller-driven aircraft - Wikipedia

    en.wikipedia.org/wiki/Fastest_propeller-driven...

    A number of aircraft have been claimed to be the fastest propeller-driven aircraft. This article presents the current record holders for several sub-classes of propeller-driven aircraft that hold recognized, documented speed records in level flight. Fédération Aéronautique Internationale (FAI) records are the basis for this article. [1]

  6. Eurocopter X³ - Wikipedia

    en.wikipedia.org/wiki/Eurocopter_X³

    The Eurocopter X³ (X-Cubed) is a retired experimental high-speed compound helicopter developed by Airbus Helicopters (formerly Eurocopter).A technology demonstration platform for "high-speed, long-range hybrid helicopter" or H³ concept, [1] the X³ achieved 255 knots (472 km/h; 293 mph) in level flight on 7 June 2013, setting an unofficial helicopter speed record.

  7. Bell 525 Relentless - Wikipedia

    en.wikipedia.org/wiki/Bell_525_Relentless

    Bell announced its new project after the Bell 429 and Bell V-22, the super medium Bell 525, previously it was known as Project X or Magellan. The Helicopter is overall designed for trips of 50 to 500 nautical miles, and has a 5-blade main rotor powered by twin engines, digital controls and Garmin G5000H screen, with planned seating for 16-20 people. [3]

  8. Sikorsky X2 - Wikipedia

    en.wikipedia.org/wiki/Sikorsky_X2

    Sikorsky developed the X2 helicopter on a $50 million budget. The design includes expertise gathered from several earlier design projects. The S-69/XH-59A Advancing Blade Concept Demonstrator had shown that high speed was possible with a coaxial helicopter with auxiliary propulsion supplied using two jet engines, but that vibration and fuel consumption was excessive; [2] [3] [4] the Cypher UAV ...

  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.