Sikorsky X2 rotorcraft prototype makes final flight after proving technology for S-97 scout/attack helicopter

One of the fastest helicopter prototypes ever developed, the Sikorsky X2 technology demonstrator, is being retired after making its final flight last Thursday. The X2 has served its purpose, and the technological lessons learned from the prototype are blending into the Sikorsky S-97 Raider helicopter program, which Sikorsky will propose for the U.S. Army's future Armed Aerial Scout program.

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