I balance ALL my props. Especially on my racing engines at 24,000 rpm. At these extreme RPM's not only is vibration a concern but high frequency harmonics can develop and play havoc with your radio and servos.

OPJOSE just confirmed what I was about to comment on. Placing the heavy blade at about 10:00 ( facing engine) with piston at TDC will reduce the vibration of an out-of-balance prop. Remember that the engine, whether ignition or glow, fires before the piston reaches TDC. Thus the reason for the 10:00 position.

Please note that this is an example with the engine in an upright position!!
TDC is always in relation to the engine...not the plane!

Example: With an inverted engine the heavy blade would be placed at the 4:00 position with piston at TDC

The great advantage to balancing your prop is that it is balanced. Less vibration on your airframe. Less wear on your whole plane............and you can place the prop at any desired position for hand starting.



Try it. It works!