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> Also forget your prop dia and pitch, so can't comment on whether you are
> over propped, but that is not that uncommon on first flights as I think we
> all over estimate the power we are going to initially produce {:>). I
> will tell you that in almost all cases power increases as tuning and
> associated things are improved - so don't cut down the prop, just yet.
>
Thanx Ed. I have a 64"Dia. x 76" pitch prop. It's supposed to be cruise prop
that is designed for 190HP and 220MPH. But you're right, it's too early to
be cutting on the prop.
What I'm really doing now is creating a game plan to get at least 180HP -
either with this engine or something else. I've got another rotary engine
in my garage that I've torn down and cleaned up for rebuilding...maybe I
will Bridgeport it or P-Port it. But before I go down those roads I'll
explore ways to get the current engine up to where it needs to be.
I wanted to fly down to David Atkins place to have them look at the tuning -
but I couldn't talk the FAA in to amending my Phase I test area by 10 miles
so I could do that. So until I fly my 40 off I'll try some things like
streamlining the intake to see if that helps. However, if I'm really at
140-150 now - it seems pretty unlikely I'm just going to find 30-40 horses
lying around (maybe that depends on how badly I screwed things up!).
I'll keep everyone posted on progress.
Joe Hull
Cozy Mk-IV #991 (In Phase1 Flight Test - 22.4 hrs flown)
Redmond (Seattle), Washington
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