Certificates Viper SD4
- certified in a number of national enviroments (including certificates from the Czech LAA and the Slovak Aviation Authority)
- a type certificate issued by the Czech LAA
- vydaný typový certifikát od LAA ČR
- possible Certificate of Airworthiness in the Czech ELSA national MTOM 600 kg KET category
- A number of aircraft registered at SFUL
Viper SD4 successfully passed the tests to confirm the towing of gliders up to 750 kg. The Honorable Institution in France, the Center National de Vol à Voile, Château-Arnoux-Saint-Auban has confirmed the results of the tests and the Viper SD4 obtained a certificate for towing the gliders (UL category) in France.