>Paul,  what happened to the little prop dyno that you had mounted on
>a trailer?  I have been waiting for  you to use it,  to see what
>changes if any you would recommend, before building one for
>myself.    Could  you put Mark's engine on it?   BTW,  I have no need
>for the trailer version.  Mine could be solid mounted bolted down to
>the shop floor.   Jerry
>
>The house project is eating all my spare time.
>Extend the bottom legs further up under the engine
>to balance it better. You don't need the static thrust
>measuring capability as it can be misleading.
>Rather than the bathroom scale there are other ways
>of measuring the torque. A calibrated garage door
>spring is one of them. Use a shock absorber to damp
>out any oscillation.
>
>Let me know if you need any advice.
>
>Paul Lamar ...No rotor no motor.

Use a hydraulic cylinder with a gage and calculate the psi
into lbs pull.
Ken

Yes that will work too. Lets see what McMaster Carr has in cheap
cylinders. You can get up to a four inch stroke for the same
$213.

Pressure gages run another $10 to $100 depending on accuracy
and diameter.

Its a bit more money than the spring and a ruler but it
will probably be more practical to read.

Paul Lamar ...No rotor no motor.