compound helicopter


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compound helicopter

A helicopter with an auxiliary propulsion system, which provides thrust in excess of that 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.
References in periodicals archive ?
2-tonne Airbus Helicopters X3 compound helicopter, which is based on the EC155, but has short wings, mounting tractor propellers.
The aircraft--which is based on Sikorsky's X-2 aircraft, a compound helicopter with coaxial rotors--will have its critical design review later this year, he added, with final assembly beginning next year.
The X3, a compound helicopter with a five-bladed top rotor and two short wings fitted with propellers, has flown at a top speed of 232 knots.
Leaps in capabilities--namely speed, agility and endurance--could come in the form of compound helicopters, Bogosian said.
Piasecki said the Office of Naval Research had shown interest in the compound helicopter as an option for a Navy airborne mine-hunting platform.
AVX has developed and patented a unique compound helicopter configuration with coaxial rotors and dual ducted fans that combine proven technologies to achieve greater speed, range, payload and utility than conventional helicopters.
Bell chose a heavy fuel advanced compound helicopter concept to obtain efficient vertical lift and speed capabilities in excess of 170 knots.
The air vehicle concept, developed by team member Bell Helicopter of Fort Worth, TX, is a heavy-fuel, advanced compound helicopter having speed comparable with larger manned rotorcraft and excellent maneuverability, particularly at low altitudes.
Further, the imminent, radical generational leap in technology; with the development & commercialization of tiltrotorcrafts & compound helicopters for the civil segment by the industry; is likely to transform the market landscape significantly over medium term with the role played traditionally by civil helicopters likely to be redefined with a significant expansion of the operational spectrum, capabilities & performance threshold.
Sikorsky has started building two prototype S-97 Raider high-speed compound helicopters for the US Army's prospective Armed Aerial Scout programme.
8, 2015 /PRNewswire/ -- The global military helicopter market is on the verge of a technological leap with next generation compound helicopters & tiltrotorcrafts heralding the advent of a new era that is likely to witness a significant expansion of the operational spectrum, capabilities & performance threshold of these machines which is likely to eventually redefine their role besides enhancing overall effectiveness in conducting a wide range of military missions & operations.
AVX and the Boeing-Sikorsky team are offering compound helicopters with coaxial rotors.