Aurora XV-24 LightningStrike

The Aurora XV-24 LightningStrike is an experimental unmanned aerial vehicle created by Aurora Flight Sciences and partners Rolls-Royce and Honeywell. It was developed for the Vertical Take-Off and Landing Experimental Aircraft program.[1]

XV-24 LightningStrike
Artist's concept
Role Remote piloted aircraft, unmanned aerial vehicle
Manufacturer Aurora Flight Sciences
Status Canceled
Primary user United States Military

Development

On 3 March 2016, DARPA awarded Aurora Flight Sciences $89.4 million to build and demonstrate their LightningStrike concept, beating out the other three competitors. Phase II of the VTOL X-Plane project will fabricate two air vehicles before flight testing, planned by September 2018.[2][3][4][5][6] A 20 percent-scale demonstrator, weighing 325 lb (147 kg) using wings and canards made of carbon composites and 3D-printed plastics, was flown on 29 March 2016.[7][8] The full-scale aircraft will be designated the XV-24A.[9]

In April 2018, after the subscale demonstrator achieved the VTOL X-Plane major objectives, Darpa cancelled the project before flight testing due to no successor to inherit the program and growing commercial interest, as electric distributed propulsion is used in Aurora’s eVTOL aircraft developed with Uber Elevate.[10]

Design

The LightningStrike is a tilting-wing design powered by one Rolls-Royce AE1107C turboshaft engine, the same type used on the V-22 Osprey, that generates electric power via three Honeywell generators to run 24 distributed ducted fans, three each in the forward canards and 18 across the main wing. Rather than using conventional engines like all the other entrants, the aircraft relies on "distributed electric propulsion" where the three generators that produce three megawatts (4,023 horsepower) of electricity, as much as a commercial wind turbine, power individual motors that drive the fans; each wing fan uses a 100 kW motor, and each canard fan a 70 kW motor. The air vehicle will weigh between 10,000–12,000 lb (4,500–5,400 kg), about the size of a UH-1Y Venom, and cruise faster than 300 knots, 50 knots faster than the V-22.

See also

References
  1. "LightningStrike" (PDF). www.aurora.ae. Aurora Flight Sciences. Retrieved November 2, 2017.
  2. VIDEO: Aurora’s LightningStrike wins DARPA VTOL X-plane comp - Flightglobal.com, 4 March 2016
  3. Check Out the Military’s Experimental Helicopter Plane - Defenseone.com, 4 March 2016
  4. You-Ain’t-Gonna-Believe-This Design Wins DARPA X-Plane Deal - Breakingdefense.com, 4 March 2016
  5. DARPA Selects Aurora’s LightningStrike 24-prop Hybrid VTOL X-Plane - Defense-Update.com, 3 March 2016
  6. Aurora Wins Darpa Contract to Build Novel Drone Demonstrator - Ainonline.com, 6 March 2016
  7. Aurora flies subscaled electric VTOL demonstrator - Flightglobal.com, 18 April 2016
  8. DARPA VTOL X-plane takes flight in miniature - Gizmag.com, 18 April 2016
  9. DARPA’s sub-scale VTOL X-Plane prototype completes flight testing - Gizmag.com, 5 April 2017
  10. Graham Warwick (Apr 24, 2018). "Darpa Pulls Plug On Aurora's Hybrid-Electric VTOL X-Plane". Aviation Week Network.
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