TOMARK AERO VIPER SD 4

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.

DURANDAL-3
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 :-)
Friendly
R.P-L.



(2021-09-07)

DURANDAL-3
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.
C.C. (2021-02-11)

DURANDAL-3
Excellent propeller for my Viper. I was waiting for the metal blade leading egde protection. Now everything is perfect.
M.N. (2020-11-06)

DURANDAL-3
The DURANDAL is a propeller that gives evrything on my VIPER. More vibrations, top performance. Perfect!
J-C.C. (2019-09-22)