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The Vortech A/W 95 is an American helicopter that was designed by Adams-Wilson as the Adams-Wilson Choppy and now produced in an improved version by Vortech of Fallston, Maryland. The aircraft is supplied in the form of plans for amateur construction. Vortech also supplies rotor blades and other key parts for the design. [1]
For example, a helicopter with a 0.30 cu in (4.9 cm 3) engine was a 30 class and a helicopter with a 0.90 cu in (14.7 cm 3) engine was referred to as a 90 class helicopter. The bigger and more powerful the engine, the larger the main rotor blade that it can turn and hence the bigger the aircraft overall.
RC helicopter. Radio-controlled helicopters, although often grouped with RC aircraft, are in a class of their own due to the vast differences in construction, aerodynamics and flight training. Hobbyists will often venture from planes, to jets and to helicopters as they enjoy the challenges, excitement and satisfaction of flying different types ...
The plans supplier notes this warning: Vortech offers the G-1 plans as a curiosity for those interested in homebuilt helicopters because of its intriguing size and simplicity; however, Vortech has no direct experience with either the design or flight of this model and so cannot and does not endorse this as a proven aircraft.
The prototype of the one-man open framework homebuilt helicopter powered by a 34 hp (25 kW) Triumph motorcycle engine. Hobbycopter 101 Production version of the XH-1 offered as a kit for $900, or as plans for $35 to homebuilders. Hobbycopter 102 Strengthened Model 101 with 34 hp (25 kW) Triumph and a fibre-glass cockpit enclosure.
Data from Bumble Bee Performance and Stress Analysis General characteristics Crew: 1 Length: 10 ft (3.0 m) Height: 7 ft 6 in (2.29 m) Empty weight: 213 lb (97 kg) Gross weight: 500 lb (227 kg) Powerplant: 1 × Rotax 447 2-cylinder air-cooled 2-stroke in-line piston engine, 40 hp (30 kW) Main rotor diameter: 23 ft (7.0 m) Propellers: 2-bladed fixed-pitch propeller Performance Maximum speed: 49 ...
With full fuel of 19 litres (4.2 imp gal; 5.0 US gal) the payload is 136 kg (300 lb). [1] [2] The company indicated that it had suspended production plans by 2012 due to lack of dealers outside Japan and put the cost of a single H-4 at ¥7,500,000.00 (about US$80,887.59 in 2013). The company stated that it could build the aircraft economically ...
The aircraft's recommended engine power range is 60 to 82 hp (45 to 61 kW) and standard engines used include the 82 hp (61 kW) Volkswagen four-stroke powerplant. Construction time from the supplied kit is estimated as 1700–1800 hours. [1] [2] [4] The Cygnet won a design award at the EAA Annual Convention and Fly-In in 1973. [1]
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