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The Adams-Wilson Hobbycopter (later named the Adams-Wilson Choppy) is a small, single-seat, open-framework
helicopter A helicopter is a type of rotorcraft in which Lift (force), lift and thrust are supplied by horizontally spinning Helicopter rotor, rotors. This allows the helicopter to VTOL, take off and land vertically, to hover (helicopter), hover, and ...
designed for homebuilding, to be powered by a
motorcycle A motorcycle (motorbike, bike; uni (if one-wheeled); trike (if three-wheeled); quad (if four-wheeled)) is a lightweight private 1-to-2 passenger personal motor vehicle Steering, steered by a Motorcycle handlebar, handlebar from a saddle-style ...
engine.


Design and development

The Adams-Wilson company was formed by T.G. Adams and Paul Wilson to market plans for a simple single-seat helicopter named the HobbyCopter, of which they have built a prototype. This prototype flew successfully for the first time in November 1958. Plans were first marketed in 1958 and have been revised and revived by various designers over the years. The Hobbycopter, (also colloquially known as the Flying Triumph), was designed to use commonly found materials that were readily available to customers. The Hobbycopter was designed to use a
motorcycle engine A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankel engine, Wankels and electric motors, have been used. Altho ...
of about and a variety engines have been used, including a
snowmobile A snowmobile, also known as a snowmachine (chiefly Alaskan), motor sled (chiefly Canadian), motor sledge, skimobile, snow scooter, or simply a sled is a motorized vehicle designed for winter travel and recreation on snow. Their engines normally ...
motor and more recently, an ultralight 2-cycle
Rotax 503 The Rotax 503 is a , inline 2-cylinder, two-stroke engine, two-stroke aircraft engine, built by Rotax, BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catalog'', pp. 6-105. Leading Edge Airfoils, 1 ...
engine developing . The aircraft is available in the form of plans and some key parts for amateur construction from Vortech of
Fallston, Maryland Fallston is a census-designated place (CDP) in Harford County, Maryland, Harford County, Maryland, United States. The population was 8,958 at the 2010 United States Census, 2010 census, up from 8,427 in 2000. Fallston is a semi-rural community c ...
.Downey, Julia: ''2005 Trikes 'Chutes and Rotorcraft Directory'', Kitplanes, Volume 22, Number 2, February 2005, page 60. Belvoir Publications. ISSN 0891-1851


Variants

;Hobbycopter XH-1: The prototype of the one-man open framework homebuilt helicopter powered by a
Triumph motorcycle engine Triumph Motorcycles Ltd is the largest UK-owned motorcycle manufacturer, established in 1983 by John Bloor after the original company Triumph Engineering went into receivership. The new company, initially called Bonneville Coventry Ltd, contin ...
. ;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 Triumph and a fibre-glass cockpit enclosure.


Specifications (Hobbycopter 101)


See also


References


External links

* {{Vortech aircraft Homebuilt aircraft 1950s United States sport aircraft 1950s United States helicopters Single-engined piston helicopters Hobbycopter Aircraft first flown in 1958 Ultralight helicopters