RE: 50cc = 29 lbs thrust
Thanks for all the reply's
To Pawel, good eye on the rudder, The rudder servo was not installed at time of test.
As to the contact point of the hook up, Makes no difference as long as the pull point is the same from hinge point as the contact to the scales.
Here is a copy and post from Ralph on another site
My very close Grish Brothers thrust chart shows 28 lbs for a 22-10 at 7000 rpm...Close enough for government work
Flew 1/2 gallon through it today and the rpms on the 22-A vess went up to 7350, that is a little to much so time to go to a 23.
At the feild I was at today using the same thrust stand and same vess props, Could not find a motor the even came close to same thrust, The only one was a G62 that was not broken in and running a little rich is the only one that came close, The other motors tested were some of the high dollar motors.
Milton
Got some video and will try to post later.
Milton