The Vancil Spitz S1 is an American homebuilt aircraft that was designed and produced by A. Vancil of Belton, South Carolina, introduced in the late 1990s. When it was available the aircraft was supplied as a kit and also in the form of plans for amateur construction.[1]
The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254lb (115kg). The aircraft has a standard empty weight of 254lb (115kg). It can also be placed in the Experimental - Amateur-built category.[1]
The Spitz S1 is made from metal tubing and wood, with its flying surfaces and tail covered in dopedaircraft fabric and the fuselage covered in sheet aluminium. Its 18.27ft (5.6m) span wing has a wing area of 116sqft (10.8m2). The standard engine used is the 48hp (36kW)Christine Aero powerplant.[1]
The aircraft has a typical empty weight of 254lb (115kg) and a gross weight of 475lb (215kg), giving a useful load of 221lb (100kg). With full fuel of 5 U.S. gallons (19L; 4.2impgal) the payload for the pilot and baggage is 191lb (87kg).[1]