This uses a prop as the energy absorber. Uses an old idea dating back
to the original old Power Sport.

It is made from 2 by lumber and 1/2 inch electrical conduit hammered
flate and drilled for lag screws.

Handy for tuning your engine and measuring the HP.

A couple of rollers allow the engine to rotate on Tracy's gear box
just behind the prop. The rear ball bearing is designed to take the
prop thrust.



Paul Lamar

Hi Paul & All,

12a & 13b single rotors & 20b project

Followed your Dyno plan with a few mods.

Have run my 13b single rotor on it, Youtube MV!2115 &2178

Best Regards,

Rollnd Savoie

Nice work Rolland. How did you measure the torque?

What was it for each engine?

Paul Lamar


Hi Paul, Still in EFI maping mode, once I can make smooth power over
6/6k RPM range, the plan is measure torque with beam type torque
wrench. The torque plus the tare ( in my case) will = prop torque.
The youtube video's are MVI 2115 & 2178

Best Regards, Rolland

Thanks Rolland. Those youtube numbers still did not work. Any key
words? You can high light the you tube address, copy the address and
past it into your email message body.

Paul Lamar


Paul,

http://www.youtube.com/watch?v=JYgW-D_4UOc

or search my name 23 files. Best Regards, Rolland

Super idea Rolland! We hope to use your idea to test the 3.17
reduction drive. Keep us posted on your progress.

Milo



Hi Paul & All,
Youtube/watch?v=K1f5AWCk5NY
Youtube/watch?v=N1S1yQhKQ_0
Single Rotor runs with props.
Best Regards,
Rolland