[quote]ORIGINAL: jaka

Hi!
24x10 is OK!
Possibly a little too small if you fly att sea-level and use a cannister silencer. MVVS says a Mejzlik 26x6 carbonfiber prop turns 6100/6200 rpm using the MVVS No 3204 cannister silencer and a 24x10 Mejzlik turns 6400rpm with the MVVS 3207 silencer.






That sounds about right. I've got an Evolution58( US version of the MVVS) with stock pitts muffler that spins a Mejzlik 24X10 @ 6500rpm and the motor is still new about 1.5 gallons thru it. Very good running engine.