TOMARK AERO VIPER SD 4 Rotax 912s gear ratio 2.43
The Tomark Viper SD4 is a single–engine aircraft, all-metal, two-seat low wing monoplane with a fixed tricycle undercarriage and side-by-side seating for two people. The aircraft is built by Tomark s.r.o. of Prešov.
Hello to the team,
What an exceptional propeller! I reach 235 km/h effortlessly with a takeoff in less than 130m. We have measured several times. Impossible to reach that with the old propeller. It's amazing how changing the propeller changes the performance so much. I would never have believed it if I had not tested it myself. I am satisfied and I will not give you the propeller back :-)
We changed the DUC propeller we had on our Viper for an EPROP. We are very happy with the results. The finish of the EPROP blades is magnificent.
Excellent propeller for my Viper. I was waiting for the metal blade leading egde protection. Now everything is perfect.
The DURANDAL is a propeller that gives evrything on my VIPER. More vibrations, top performance. Perfect!