Fastest Helicopter in the World?

July 24, 2009 at 7:30 pm Leave a comment

Sikorsky X2

The Sikorsky X2 Test Flight

It looks as though Sikorsky is on the path to creating one of the fastest helicopters in the world. Their new X2 helicopter just recently had its first test flight using the high speed pusher prop. The latest flight test didn’t break any speed records at 40 knots, but Sikorsky is planning for 250 knots by the time all tests are done. The current record holder for fastest helicopter belongs to the Westland Lynx which set a world record speed of 216 knots.

The Lynx HAS3 similar to the ZB500

The Lynx HAS3 similar to the ZB500

The X2 helicopter looks pretty cool. in a traditional single rotor helicopter, the retreating blades at high forward velocity start to lose their effectiveness. The idea behind using the the coaxial rotors is that you will have both rotors counter-rotating which will provide you with an advancing blade on each side of the helicopter. This fixes the problem of the aircraft’s stability. The pusher prop at the back gives the X2 the extra thrust to be able to get the helicopter past the speed record.

A few more of the specifics of the Sikorsky X2 can be found at its wikipedia page.

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Entry filed under: new helicopters. Tags: , , .

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