New Sikorsky chopper

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Views: 2,398 · Replies: 4

New Sikorsky chopper

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Möbius

Posted: Oct 8 2010, 08:47 PM

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http://blog.seattlepi.com/aerospace/archives/215811.asp

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QUOTE

Sikorsky Aircraft Corp.'s X2 Technology demonstrator broke the rotorcraft speed record Monday.

The helicopter reached a top speed of 225 knots in a one-hour test flight at the Development Flight Center, in West Palm Beach, Fla. A Westland Lynx set the previous record of 216 knots for a 3,500 kg class of rotorcraft in the 1980s.

"The X2 Technology demonstrator's latest flight is continuing to push the speed envelope, successfully flying approximately 50 knots faster than a traditional helicopter," Jim Kagdis, Sikorsky's manager of Advanced Programs, said in a news release. "Vibration levels and aircraft performance have continued to meet or exceed our expectations, so we are pleased to report that all systems are 'go' in our mission to achieve a 250-knot cruise speed later this year."

The X2 is designed to demonstrate that a helicopter can cruise comfortably at 250 knots without sacrificing excellent low-speed handling, efficient hovering and a seamless and simple transition to high speed, according to Sikorsky. It includes fly-by-wire flight controls, counter-rotating rigid rotor blades, hub drag reduction, active vibration control and an integrated auxiliary propulsion system.

As anyone knows, the main difficulty in reaching high speeds with helicopters is approaching the sound barrier with the speed of the blades and the speed of the chopper combined.

Also, this reminds me of the old Cheyenne program.

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MidnightViper88	Posted: Oct 8 2010, 09:18 PM
Ballistic heartbreak Group: Advanced Members Posts: 16,831 Member No.: 1,034 Joined: Nov 22nd 2003 Location: Richards Majestic, apartment 51	That's not a chopper; That's a VTOL-capable pusher plane that only looks like a chopper...

Möbius

Posted: Oct 8 2010, 09:39 PM

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QUOTE (MidnightViper88 @ 21 minutes, 30 seconds ago)

That's not a chopper; That's a VTOL-capable pusher plane that only looks like a chopper...

Coaxial twin rotor with a pusher prop.

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MetalMan777	Posted: Oct 10 2010, 05:24 PM
Snooping as usual Group: Advanced Members Posts: 1,780 Member No.: 32,588 Joined: Apr 13th 2009 Location: what are you doing in my swamp?	If the wings are traveling faster than the fuselage, it's probably a helicopter, and therefore unsafe. Vertical takeoff and landing capabilities are very overrated. That said, it's a sweet toy for the uber-rich.

Möbius

Posted: Oct 10 2010, 05:32 PM

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QUOTE (Cactus @ 7 minutes, 50 seconds ago)

If the wings are traveling faster than the fuselage, it's probably a helicopter, and therefore unsafe.

Vertical takeoff and landing capabilities are very overrated. That said, it's a sweet toy for the uber-rich.

Could be an autogyro, but I am just nitpicking.

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