Vancil Spitz S1

Vancil Spitz S1
Role Homebuilt aircraft
National origin United States
Manufacturer A. Vancil
Introduction late 1990s
Status Production completed
Number built At least one
Unit cost
US$3,848 (ultralight kit, less engine and instruments, 1998)
Developed from Pitts S1

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]

Design and development

The Spitz S1 is an ultralight replica of the Pitts S1 aerobatic biplane. It features a biplane layout, a single-seat open cockpit, fixed conventional landing gear and a single engine in tractor configuration.[1]

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg). The aircraft has a standard empty weight of 254 lb (115 kg). 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 doped aircraft fabric and the fuselage covered in sheet aluminium. Its 18.27 ft (5.6 m) span wing has a wing area of 116 sq ft (10.8 m2). The standard engine used is the 48 hp (36 kW) Christine Aero powerplant.[1]

The aircraft has a typical empty weight of 254 lb (115 kg) and a gross weight of 475 lb (215 kg), giving a useful load of 221 lb (100 kg). With full fuel of 5 U.S. gallons (19 L; 4.2 imp gal) the payload for the pilot and baggage is 191 lb (87 kg).[1]

Variants

S1 ultralight version
With a maximum speed of 90 mph (140 km/h).[1]
S1 homebuilt version
With a maximum speed of 120 mph (190 km/h).[1]

Specifications (version)

Data from AeroCrafter[1]

General characteristics

Performance

References

  1. 1 2 3 4 5 6 7 8 Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 361. BAI Communications, 15 July 1998. ISBN 0-9636409-4-1
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