> Dear Paul and rotary friends,
 >
 > We have found and solved the cooling problem,
 >
 > The diverter lip on the top of our inlet was tumbling the
 > air flow coming down the slope of the cowl from the prop
 > and spinner. We removed the upper diverter lip so the
 > air coming down that slope now enters the opening
 > instead of the tumbled air blocking the incoming air.
 >
 > How did we finally find the problem, as the cooling
 > was working better on the ground and much better
 > with the 2 blade wood prop?
 >
 > We visual inspected all the BUGS splattered on the
 > upper lip and noticed the bug count was 10 times greater
 > than the total bug count inside the cowling. Finally a good
 > use for Wisconsin bugs.
 > The 3 blade MT also must be more efficient at the inner radius,
 > thus the more airflow coming down the slope to be tumbled.
 >
 > Flying yerterday showed  water temperature was 180 degrees with
 > OAT of 86 deg. Today water temps. are 173 degrees, during
 > 2 hours of flight including 12 take-off and landings.
 > Present cruse speed shows 180 MPH at 75% power.
 > No nose wheel pants no leg fairing, large spinner gap, ect.
 > Beautification comes after functionality.
 >
 > Our oil temperature still go to 200 degs F. So we are not done yet,
 > but we have proved the radiator location with slowed air does work
 > well. I will report as the improvements continues.
 >
 > Thanks
 >
 > Ray Richardson Jr.
 >

That's great news, Ray!  Great to see that you are sending us regular updates
too!

Dave Leonard

 
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