Eurofly Viper

The Eurofly Viper is an Italian ultralight trike, designed and produced by Eurofly Srl of Galliera Veneta. The aircraft is supplied as a complete ready-to-fly-aircraft.

Design and development
The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg. The Viper has a maximum gross weight of 450 kg. It features a cable-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit, tricycle landing gear with wheel pants and a single engine in pusher configuration.

The aircraft is made from welded tubing, with its double surface wing covered in Dacron sailcloth. Its 10.5 m span Skyrider Hazard 12 wing is supported by a single tube-type kingpost and uses an "A" frame weight-shift control bar. The standard powerplant is a twin cylinder, liquid-cooled, two-stroke, dual-ignition 64 hp Rotax 582 engine, with the twin cylinder, air-cooled, two-stroke, dual-ignition 50 hp Rotax 503 engine optional. The Viper has an empty weight of 126 kg and a gross weight of 450 kg, giving a useful load of 324 kg. With full fuel of 65 L the payload is 277 kg.

A number of different wings can be fitted to the basic carriage, including the Skyrider Hazard 12 and Hazard 15. A 70 L fuel tank is optional.

A basic version of the aircraft, powered by the 50 hp Rotax 503 engine and without fairings is also offered.