Sikorsky X2 Technology helicopter achieves 250kt - Sep 2010
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Uploaded by theworacle on Oct 6, 2010
Sikorsky video of the Sep. 15, 2010 test flight during which its X2 Technology coaxial-rotor helicopter demonstrator achieved its 250kt speed goal. Conventional helicopters cruise at around 150kt. The X2 reached 260kt in a shallow dive as is expected to exceed 250kt in level flight once a sail fairing is fitted between the upper and lower rotors to reduce drag further.
X2 uses a single T800 engine to power both the rotors and the tail-mounted variable-pitch propeller, which provides forward thrust to enable the high speed. Other technologies include fly-by-wire flight controls and active vibration control. As the video opens you see a full-scale mockup of Sikorsky's proposed X2 Light Tactical Helicopter in the hangar.
- 402 likes, 6 dislikes
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Top Comments
All Comments (198)
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@dpcnull it's called temporal aliasing
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Wadsworth Constant applies here.
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@cutiknet Uh, no... the blades are spinning incredibly fast, the camera's framerate just distorts it so that it looks like it's spinning slowly. Same reason why car rims look slow when a car is going fast.
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460 km/h "cruise mode"?!
damn, I WANT ONE!
Really now, what would be the price for one able to cruise at 250 kts?
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@cutiknet it only looks that way because the frame rate of the camera is matching up with the rotational speed of the blades. Merely a cinematic illusion.
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Nice toy for millionaires no more.
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So when do we get a RC version of this??? lol. I suspect it wouldn't be too hard to do since most 3 and 4 channel RC helicopters employ the dual main rotor design.
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@unatics design average ??????? WTF ?????? sorry i realise you are of course an aeronautical engineer yourself aren you !!
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ну и шляпа.
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its a cross bread of a plane n helicopter. im making an r/c version of this 4 my science project
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@TennesseeJimmie, @psyclistic and @caspia99 who think the track sucks, I strongly disagree! I think this track is awesome! I also think they did a great job at keeping the sound at the right levels so you can hear what the tower and pilot are saying, and when there is radio silence, the track wasn't turned up too high. If you agree, thumbs up!
Generic3072 1 year ago 39
Thats awesome!!
Sikorsky is truly the worlds best helicopter desighners!
TheCORE87 1 year ago 4