Perry Mick wrote:

Well, after all these years I finally got the new intake manifold done,
took almost a month. Did a quick test flight around the pattern this
morning mainly just to see if I lost any power.  Took off and landed in
20 knot 50 degree crosswind and it was gusty so didn't stay up. I think
my new runners are slightly longer than stock, so you would think that
would work better at 5000 rpm where I operate most of the time.
 Unfortunately it did not, I lost a slight bit of power, from 5050-5100
rpm at 80 knot climbout to 5000. Anyway, I'll do more testing when the
weather allows.  Next step is to reshape the upper cowl to get the bumps
out, hopefully that will allow the fan to breathe better and I can gain
back some RPM.

Perry
http://www.ductedfan.com

Don't keep us in the dark Perry. What does the new manifold look like?

Paul Lamar
 
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