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17.09.2025
The 1125th new propeller of the V503A was manufactured The 1125th new prope
It is 2-blade automatic variable pitch propeller V503A with a hydraulically operated blade pitch change mechanism.
The propeller is fully automatic, it means that it does not need any pilot intervention for the operation.
The first propeller model V503 was certified by the Czech Aviation Authority in 1964, it currently has an EASA certificate and is validated in Canada.
The propeller is used on the Czech aerobatic ZLIN "Trener" aircraft with a single piston six-cylinder M137 engine.
Right-hand propeller model V503AP, instead of left-hand V503A, was developed for Cessna 172N, see STC.
We thank the ZLIN aircraft operators for their care of these beautiful aircraft and for keeping them in the air.
The propeller is fully automatic, it means that it does not need any pilot intervention for the operation.
The first propeller model V503 was certified by the Czech Aviation Authority in 1964, it currently has an EASA certificate and is validated in Canada.
The propeller is used on the Czech aerobatic ZLIN "Trener" aircraft with a single piston six-cylinder M137 engine.
Right-hand propeller model V503AP, instead of left-hand V503A, was developed for Cessna 172N, see STC.
We thank the ZLIN aircraft operators for their care of these beautiful aircraft and for keeping them in the air.
