compound helicopter


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compound helicopter

A helicopter with an auxiliary propulsion system which provides thrust in excess of that which the rotor(s) alone could produce, thereby permitting increased forward speeds; wings may or may not be provided to reduce the lift required from the rotor system.
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fully supporting the rapid emergence of the high speed compound helicopter, This next generation of fs will demonstrate weight reduction up to 15%, Monitored and decreased use of hazardous substances regarding reach regulation, Reduced environmental impact (energy, Voc emissions and waste) with life cycle analysis, Optimum between level of performances of the high speed compound helicopter and cost of potential product with a recurring cost estimation, Conformance with cs29 and integration of an innovative technology for the optical fuel level sensor.
Last year, the Army downselected from four vendors to two--a Boeing-Sikorsky team offering the SB-1 Defiant, a compound helicopter with coaxial rotors, and Bell Helicopter offering the V-280 Valor, a tilt-rotor aircraft.
A highly representative example of the above statement is provided by the compound helicopter parent ("a parent who takes an excessive and overprotective interest in the life of his or her child, esp.
The Mi-38 was originally seen by Mil as a stop-gap, pending availability of the Mi-X1 compound helicopter, which was to have high-speed blade tips and a ducted pusher propeller.
You might have, for instance, a tilt-rotor for one requirement; a compound helicopter for another requirement," he said.
Little information is available on the Piasecki Pathfinder IV, a compound helicopter with the company's patented Vectored-Thrust Ducted Propeller (VTDP) at the rear end.
A burgeoning market for unmanned cargo delivery systems and long endurance intelligence, surveillance and reconnaissance (ISR) platforms for the US military has spurred Textron Systems subsidiary AAI to take a major technology stake in compound helicopter start-up, Carter Aviation Technologies.
Bell Helicopter's V-280 Valor tiltrotor and Sikorsky-Boeing's SB-1 Defiant, a compound helicopter with coaxial rotor blades, will make their first flights in 2017.
The X2--a compound helicopter with coaxial rotors and a pusher-propeller at the rear--has flown at speeds of up to 250 knots in level flight.
Sikorsky, in anticipation of Army requirements, began developing its new X-2 compound helicopter in 2005 with its own R&D dollars.
The only compound helicopter concept currently funded by the Defense Department is called the Vectored Thrust Ducted Propeller (VTDP).
Sikorsky has started building two prototype S-97 Raider high-speed compound helicopters for the US Army's prospective Armed Aerial Scout programme.