The Showers Skytwister Choppy is an American helicopter that was produced by Showers-Aero of Milton, Pennsylvania, introduced in 1992.
Now out of production, when it was available the aircraft was supplied in the form of CAD plans for amateur construction.
[1][2] The Skytwister is a modernized and updated version of the Adams-Wilson Hobbycopter, also called the "Choppy", as redesigned by Ben Showers.
Its two-bladed Fleck 2706 aluminium alloy main rotor is made as an extrusion and has a 21.50 ft (6.6 m) diameter.
With full fuel of 5 U.S. gallons (19 L; 4.2 imp gal) the payload for pilot and baggage is 320 lb (145 kg).