X-Mozilla-Keys:                                                                                 
Chuck Dunlap wrote:

Paul wrote:

Don't get too carried way on static thrust Chuck.
A high static thrust with a fixed pitch prop might
mean the pitch is too fine for good climb.

Set the pitch so the engine bogs down to about
1900 prop RPM 4100 engine RPM static. 2.17:1 PSRU. The engine
should then pick up RPM and the thrust should increase
as you accelerate down the runway.

Paul Lamar

Thanks for the heads up, Paul. I am getting about 4300 RPM static (2.17
reduction)  I am using a fixed pitch Performance prop which was made to spec
using estimated 160HP, 6000RPM max at 180knot cruise.  I am not using the
dynamometer to try for  max static thrust, just wanted an idea where I am at
for calculations.
Chuck Dunlap

4300 RPM static sounds about right.
 
Paul Lamar
 
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