The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb). It features a "topless" strut-braced hang glider-style high-wing, weight shift controls, a two-seats-in-tandem open cockpit, tricycle landing gear and a single engine in pusher configuration. The aircraft is made from bolted-together aluminum tubing, with its double-surface wing covered in Dacron sailcloth. Its 31.5 ft (9.6 m) span wing is supported by streamlined struts, in place of the more commonly used cables and kingpost. The Apache is controlled with a conventional weight shift "A" frame control bar. Standard features include a fiberglass cockpit fairing, wheel pants, nosewheel brakes and stowage bags. Dual control steering and throttle are optional for flight training use. The supplied engines include the Rotax 503 twin-cylinder, two-stroke, air-cooled powerplant of 50 hp (37 kW) and the Rotax 582 twin-cylinder, two-stroke, liquid-cooled powerplant of 64 hp (48 kW). The strut-braced wing provides a number of advantages over the traditional cable braced wing, including reduced overall height for hangaring, reduced drag and improved appearance. Variants Apache 582 Contour Model with Rotax 582 twin-cylinder, two-stroke liquid-cooled powerplant of 64 hp (48 kW), Contour strut-braced wing, cockpit fairing, gross weight of 950 lb (431 kg), circa 2003-05. Price was US$$18,950 in 2005. Apache 582 Mustang Model with Rotax 582 powerplant of 64 hp (48 kW), Mustang strut-braced wing, cockpit fairing, gross weight of 950 lb (431 kg), circa 2003. Apache ST Model with Rotax 582 powerplant of 64 hp (48 kW), stripped down for off-airport operations, with no cockpit fairing, circa 2003.
