Find your propeller...
Simply select your aircraft type from the drop-down menu, and the applicable STCs for your aircraft will be shown.


Please check if we already hold a high performance propeller STC for your airplane.
(some of the listed STCs below are held by distributors and others. Their contact is mentioned next to the respective STC number)

for the 2000RPM engine: Honeywell, USA
TPE331-25AA, TPE331-1-151A,
TPE331-6(A)-251M or -252M
TPE331-10-( ) installed per approved STCs which
do not exceed 715 shp and 2000 rpm
for the 1591RPM engine: Honeywell, USA
TPE331-10-501M or TPE331-10-511M or
TPE331-5-252M or any TPE331-( ) installed per
approved STCS which do not exceed 715 shp and 1591 rpm.
For the 2000RPM engine with CW rotating propellers:
MTV-27-1-E-C-F-R(G)/CFR210-58d
For the 1591RPM engine with CCW rotating propellers:
MTV-27-1-E-C-F-R(G)/CFRL240-55d.