Mailing List flyrotary@lancaironline.net Message #32316
From: Joe Hull <joeh@pilgrimtech.com>
Subject: RE: [FlyRotary] Life without a turbo....
Date: Fri, 16 Jun 2006 08:20:10 -0700
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Right off the box without any tuning made 4900 static (2260 prop)
I'm pleased, since the prop was ordered for my turbo setup. My turbo/
muffler does a very good job. The noise was very close to the one I
had with the turbo. I basically gutted the turbo and left only the
empty hot section on. Makes very compact and sturdy muffler, with
exhaust pointed exactly where I want it without modifications.
John Slade tells me this static RPM is sufficient for flight. I
wander what other people think? I can trim the prop also and get a
bit higher RPM. John is running 64" (same prop) with his turbo
application.
Buly

Buly - I'm only getting 4200 static and takeoff is fine (assuming you don't
mind using 1500-2000 feet to get airborne).  A max-gross on a hot day might
be a different story. But for solo test flights it works just fine for my
plane.

Joe Hull
Cozy Mk-IV #991 (In Phase1 Flight Test - 29.1 hrs flown) Redmond (Seattle), Washington

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