S-97 Raider Speed Rising As It Flies With Retracted Gear

Credit: S-97: Lockheed Martin
LOS ANGELES—Lockheed Martin Sikorsky’s S-97 Raider compound helicopter prototype has flown with retracted landing gear for the first time as envelope expansion continues toward a design speed of 220 kt. and faster. The S-97, a larger follow-on to Sikorsky’s X-2 technology demonstrator that exceeded...

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