Thrust test stand
Got tried of guessing which prop worked best and what RPM so I built this test stand and really was surprised how a prop turning 800 RPM less than another could put out 3 lbs more thrust
This is not built for NSSA but does what I want it to do.
Pro Zinger 20-10 @ 7100 RPM put out 17 lbs thrust
Troy built model 22-8 @ 5700 rpm put out 20 lbs thrust.
Pro Zinger 22-8 (no rpm reading) 18.5 lbs thrust
This on a 50cc motor with zero break in time
Milton