Viper Aircraft Viperfan
American homebuilt aircraft
The Viper Aircraft Viperfan was an American homebuilt aircraft that was designed and produced by Viper Aircraft of Kennewick, Washington, introduced in the late 1990s. It was intended to be supplied as a kit for amateur construction, but only one was ever built.
Design and development
The Viperfan was designed to resemble a military jet trainer, but powered by a pusher piston engine. It featured a cantilever low-wing, a two-seats-in-tandem enclosed cockpit under a bubble canopy, retractable tricycle landing gear and a single engine in pusher configuration.
The aircraft was made from composite materials. Its 24.5 ft (7.5 m) span wing-mounted flaps and had a wing area of 85.0 sq ft (7.90 m2). The cabin width was 31 in (79 cm). The acceptable power range was 240 to 350 hp (179 to 261 kW) and the standard engines envisioned to be used were the 285 to 310 hp (213 to 231 kW) Continental IO-520 and TSIO-520, or the 350 hp (261 kW) Continental TSIOL-550 powerplant, driving the tail-mounted propeller through an extension shaft.
The Viperfan had a typical empty weight of 1,450 lb (660 kg) and a gross weight of 2,500 lb (1,100 kg), giving a useful load of 1,050 lb (480 kg). With full fuel of 100 U.S. gallons (380 L; 83 imp gal) the payload for the pilot, passenger and baggage was 450 lb (200 kg).
“Viper Aircraft Viperfan” enters the record as american homebuilt aircraft. Crown Archives preserves that source wording while asking what Viper, Aircraft and Viperfan can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jan 27, 2026. The linked authority identifier is Q19946030. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Viper Aircraft Viperfan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.