Sikorsky Raider X
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Sikorsky Raider X
Raider X
Role Reconnaissance and attack compound helicopter
United States
Manufacturer Sikorsky Aircraft
Status Under development
Sikorsky S-97

The Sikorsky Raider X (stylized in all-caps as RAIDER X) 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 October 2019. In March 2020, the Army selected the Raider X and the Bell 360 Invictus from a field of five design concept candidates. The Raider X and 360 Invictus concepts will be built as flying prototypes for a competition scheduled for 2023.


Contracts were awarded in April 2019 to develop concept design candidates for FARA; five different teams were selected, including Sikorsky.[1]

Sikorsky presented the Raider X concept candidate at the annual meeting of the Association of the United States Army on October 14, 2019. The Raider X concept was derived from the earlier Sikorsky S-97 Raider, which had been developed for the Army's Armed Aerial Scout program; the S-97 was in turn developed from the Sikorsky X2 prototype compound coaxial helicopter.[2] A larger Sikorsky-Boeing SB-1 Defiant was also developed from the X2 under the Army's Future Vertical Lift program to create a joint multi-role rotorcraft; the SB-1 is a candidate for the Future Long Range Assault Aircraft program.[3] The Sikorsky compound helicopter designs all use coaxial rigid rotors and a pusher propeller, which Sikorsky has collectively named "X2 Technology".[4]

On March 25, 2020, the Army selected the Raider X and Bell 360 Invictus concept design candidates to proceed to an eventual flight competition;[5] flying prototypes of each candidate design will be constructed, followed by test flights in 2022 leading up to a competitive flying demonstration no later than fall 2023.[6][7] Sikorsky had already begun construction of its Raider X prototype by February 2020.[8]


The Raider X, as required by FARA program specifications, is designed to use a single General Electric T901 engine.[9] The GE T901 was developed under the Army's Improved Turbine Engine Program as the new engine for existing and future Army rotorcraft.[10] Based on S-97 and X2 performance, Raider X is expected to have a maximum speed exceeding 250 kn (460 km/h; 290 mph) with a service ceiling greater than 9,000 feet (2,700 m).[2] Sikorsky considers the S-97 to be an 80% scale model of Raider X; Raider X is expected to weigh 14,000 lb (6,400 kg).[11]Swift Engineering will design and build the fuselage.[12]

The cockpit uses side-by-side seats instead of the tandem seating typical of American attack helicopters; internal weapons and sensors are mounted using a modular system, in accordance with FARA specifications, to anticipate future upgrades and obsolescence.[2]

Specifications (Raider X)

General characteristics


See also

Related development

Aircraft of comparable role, configuration, and era


  1. ^ Judson, Jen (April 23, 2019). "US Army picks 5 teams to design new attack recon helicopter". Defense News. Retrieved 2019.
  2. ^ a b c Gallagher, Sean (October 14, 2019). "Sikorsky makes its bid for Army's next scout copter". Ars Technica. Retrieved 2020.
  3. ^ Parsons, Dan (March 16, 2020). "Bell's Valor, Sikorsky/Boeing Defiant advance in U.S. Army Future Assault Aircraft program". Vertical. Retrieved 2020.
  4. ^ "Game-changing X2 Technology(TM) for Future Tactical Missions". Lockheed Martin. Retrieved 2020.
  5. ^ Host, Pat (25 March 2020). "US Army selects Bell, Sikorsky for FARA-CP programme". Jane's Defence Weekly. Retrieved 2020.
  6. ^ Judson, Jen (October 3, 2018). "US Army triggers design competition for future attack reconnaissance helicopter". Defense News. Retrieved 2019.
  7. ^ Reim, Garrett (25 March 2020). "US Army selects Bell and Sikorsky to build FARA prototypes". Flight Global. Retrieved 2020.
  8. ^ Judson, Jen (February 20, 2020). "Lockheed's Raider X enters construction in advance of US Army's decision on way forward". Defense News. Retrieved 2020.
  9. ^ Worley, Sam (October 17, 2019). "Meet Raider-X, America's Next-Gen Chopper". Blades of Glory [blog]. General Electric. Retrieved 2020.
  10. ^ Judson, Jen (April 15, 2019). "Army sees path to accelerate ITEP engine program with GE". Defense News. Retrieved 2020.
  11. ^ Parsons, Dan (October 14, 2019). "Sikorsky reveals Raider X for Army's FARA program". Vertical. Retrieved 2020.
  12. ^ Swift Engineering Selected for the Design and Construction of FARA Airframe for Sikorsky, a Lockheed Martin Company

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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