Perry Mick wrote:

Had nothing else to do this morning so climbed to 8500 feet and took some WOT data.
It was 34 F at the surface (160'), I think it's 3.5 deg/1000 feet? Which gives about 4 F at 8500 feet.

Manifold pressure gauge read 22.5 inch mercury.  5400 RPM.

Indicated airspeed 125 knots. With the 2%/1000' rule for TAS, this gives a TAS of 146 knots.
Can't locate the temperature correction right now, maybe you have it.

GPS GS was 114 knots one way and 158 knots the other way for average of 136 knots.  Didn't do the
three-way method.

My highly accurate measurement of fuel burn (sight gauges):  5 gallons in 0.7 hour for 7.14 gph.

--
Perry J. Mick
Duckt N7XR
http://www.ductedfan.com

Thanks for the data Perry. What is next for improvements to the ducted fan/
engine system? Tighter cowl or new motor mount?

Paul Lamar
 
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