Hi Mike,

Any prop readings on the 21x10 yet (RPM and noise), what make of prop are you using ?

I've been flying my YAK 54 86" for nearly 1 year now and after starting with the DA50 found it OK but was not particually impressed with the pull out from hover, so put the 58 Pro in and can't be more impressed with the setup. 99% of the time, easy to start and reliable with plently of power using the TDK75.

Been using a Beila 24x10 carbon which is about the max Dia 2-blade the YAK will take for clearence. Although not checked, I sure it is over reving at max throttle something around 7K+ which might explain why it is on it's third set of bearings and the gudgeon pin thru the piston is wearing, also noticed wear on the crank bearing journals, anyway after just breaking said prop (windy landing) was looking at using a 21x10 3-blade as Pe recommends but not sure if it would be suitable for 3D ?

Ian