Adams-Wilson Hobbycopter

<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> {{Infobox aircraft | name=Hobbycopter | image=HobbyCopter, Adam-Wilson Helicopters, Inc., Lakewood, California - Oregon Air and Space Museum - Eugene, Oregon - DSC09715.jpg | caption=HobbyCopter in the [[Oregon Air and Space Museum]] | type=Single seat homebuilt [[helicopter]] | national_origin=United States | manufacturer=[[Vortech]] | designer=Adams-Wilson | first_flight=November 1958 | introduction= | retired= | status= | primary_user= | more_users= <!--Limited to three in total; separate using <br /> --> | produced= <!--years in production--> | number_built= | program cost= <!--Total program cost--> | unit cost= <!--Incremental or flyaway cost for military or retail price for commercial aircraft--> | developed_from= | variants=[[A-B Helicopters A/W 95]]<br>[[Vortech A/W 95]]<br>[[Showers Skytwister Choppy]] }}

The '''Adams-Wilson Hobbycopter''' (later named the '''Adams-Wilson Choppy''') is a small, single-seat, open-framework [[helicopter]] designed for [[homebuilt aircraft|homebuilding]], to be powered by a [[motorcycle]] 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]] of about {{convert|50|hp|kW|abbr=on|0}} and a variety engines have been used, including a [[snowmobile]] motor and more recently, an ultralight 2-cycle [[Rotax 503]] engine developing {{convert|52|hp|kW|abbr=on|0}}.

The aircraft is available in the form of plans and some key parts for [[Homebuilt aircraft|amateur construction]] from [[Vortech]] of [[Fallston, Maryland]].<ref name="KitplanesFeb2005">Downey, Julia: ''2005 Trikes 'Chutes and Rotorcraft Directory'', Kitplanes, Volume 22, Number 2, February 2005, page 60. Belvoir Publications. ISSN 0891-1851</ref>

==Variants== ;Hobbycopter XH-1: The prototype of the one-man open framework homebuilt helicopter powered by a {{convert|34|hp|kW|abbr=on|0}} [[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 {{convert|34|hp|kW|abbr=on|0}} Triumph and a fibre-glass cockpit enclosure.

==Specifications (Hobbycopter 101) == {{Aircraft specs |ref=<!-- for giving the reference for the data --> |prime units?=kts <!-- General characteristics --> |genhide=

|crew=1 |capacity= |length m=4.57 |length ft= |length in= |length note= |span m= |span ft= |span in= |span note= |width m=<!-- if applicable --> |width ft=<!-- if applicable --> |width in=<!-- if applicable --> |width note= |height m=1.83 |height ft= |height in= |height note= |airfoil= |empty weight kg= |empty weight lb=300 |empty weight note= |gross weight kg= |gross weight lb=600 |gross weight note= |fuel capacity= |more general= <!-- Powerplant --> |eng1 number=1 |eng1 name=[[Triumph motorcycle engine]] |eng1 type=4-stroke air-cooled [[piston engine]] |eng1 kw=<!-- prop engines --> |eng1 hp=34

|rot number=1 |rot dia m=6.55 |rot dia ft=<!-- helicopters --> |rot dia in=<!-- helicopters --> |rot area sqm=<!-- helicopters --> |rot area sqft=363 |rot area note=2-bladed <!-- Performance --> |perfhide=

|max speed kmh= |max speed mph=85 |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |range km= |range miles= |range nmi= |range note= |endurance=<!-- if range unknown --> |ceiling m= |ceiling ft=8,500 |ceiling note= |g limits=<!-- aerobatic --> |climb rate ms= |climb rate ftmin=950 |climb rate note= |time to altitude= |disk loading kg/m2= |disk loading lb/sqft= |disk loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}

==See also== {{aircontent <!-- include as many lines are appropriate. additional lines/entries with carriage return. --> |see also= |related= *[[A-B Helicopters A/W 95]] *[[Vortech A/W 95]] |similar aircraft=<!-- similar or comparable aircraft --> |lists=<!-- related lists --> *[[List of single seat helicopters]] }}

==References== {{reflist}}

==External links== {{Commons category}} *{{Official website|http://www.vortechonline.com/choppy/}}

{{Vortech aircraft}}

[[Category:Homebuilt aircraft]] [[Category:1950s United States sport aircraft]] [[Category:1950s United States helicopters]] [[Category:Single-engined piston helicopters]] [[Category:Adams-Wilson aircraft|Hobbycopter]] [[Category:Aircraft first flown in 1958]] [[Category:Ultralight helicopters]]