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Robinson R22 hovering. The R22 is a light, two-place, single reciprocating-engined helicopter, with a semirigid, two-bladed main rotor and a two-bladed tail rotor. The main rotor has a teetering hinge and two coning hinges. The tail rotor has only a teetering hinge. The normal production variant has skid landing gear.
1,300. Website. robinsonheli.com. The Robinson Helicopter Company, based at Zamperini Field in Torrance, California, is an American helicopter manufacturer. As of 2024, Robinson produces three models: the two-seat R22, the four-seat R44, both of which use Lycoming piston engines, and the five-seat R66, which use Rolls-Royce turbine engines.
Robinson R22. Developed into. Robinson R66. The Robinson R44 is a four-seat light helicopter produced by Robinson Helicopter Company since 1992. Derived from the company's two-seat Robinson R22, the R44 features hydraulically assisted flight controls and a larger engine. It was first flown on 31 March 1990 and received FAA certification in ...
The R66 is the first Robinson helicopter with a cargo hold; the hold carries up to 300 pounds (140 kg). [22] The RR300 engine is more compact and lighter than the Lycoming O-540 six-cylinder piston engine that powers the R44—the R66 has a lower empty weight than the R44. [22]
The 222B-based Bell 222UT Utility Twin, with skid landing gear, was introduced in 1983. [ 1 ] A development of the 222 is the Bell 230, with the 222's LTS 101 engines replaced by two Allison 250 turboshaft engines, plus other refinements. A converted 222 first flew as the prototype 230 on August 12, 1991.
In this image taken in 1944, one of Langley Research Center's Sikorsky YR-4B/HNS-1 helicopters is seen in the 30 × 60 full-scale tunnel. The Sikorsky R-4 is a two-seat helicopter that was designed by Igor Sikorsky with a single, three-bladed main rotor and powered by a radial engine. The R-4 was the world's first large-scale mass-produced ...
The Bell V-280 Valor is a tiltrotor aircraft being developed by Bell Helicopter for the United States Army 's Future Vertical Lift (FVL) program. [2] The aircraft was officially unveiled at the 2013 Army Aviation Association of America's (AAAA) Annual Professional Forum and Exposition in Fort Worth, Texas. The V-280 made its first flight on 18 ...
2. History. First flight. 4 January 1996. The Boeing–Sikorsky RAH-66 Comanche is an American stealth armed reconnaissance and attack helicopter designed for the United States Army. Following decades of study and development, the RAH-66 program was cancelled in 2004 before mass production began, by which point nearly US$ 7 billion had been ...