
In 2005 Sikorsky began developing the X2 to increase helicopter speeds, with the first flight in 2008. On September 15, 2010, it achieved a level flight speed of 250 knots (463 km/h)—a 15% improvement on the record top speed of a conventional helicopter; Sikorsky and the X2 Technology Demonstrator Team received the 2010 Collier Trophy. The photo was taken on Sept. 1, 2025, at the Smithsonian Institution's National Air and Space Museum (NASM) Steven F. Udvar-Hazy Center in Chantilly, Virginia, by Mike Hirschberg. CC BY-SA 4.0
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