OK here it is.

How many are interested in p-ports?

Where do you want to put your muffler?

Paul Lamar

Matt Prather wrote:

THAT is the hot setup for a low altitude LongEZ (less than
10,000k)  Even if you just made a faired hump over the intake
and exhaust, it would be rather low drag.  Consider that you
completely eliminated the cylinder humps of the stock cowl.

240hp?  That's roughly double what most of these flit around
with.  Nice.  That would work even better with a little wider
firewall.

I'm not sure that was the response you were looking for..  :)

One question about p-port engines.  What's the lowest RPM they
will reliably idle?  I ask this because I know that the ability
to land relatively short in my Varieze is strongly influenced
by idle speed.  Anything more than about 700rpm static might
be marginal for safety.  550rpm is preferable.  Will a p-port
idle at 1500rpm?  If you can bolt on a constant speed, that
helps a bunch.

Regards,

Matt-

That is a good question Matt. Even if it takes 2000 engine RPM the prop
is turning over at 700 RPM with a 2.85 to one PSRU. BTW You can almost count Tracy's
and the Mistral Turbo Piper's blades when their engines are idling at 650 RPM.

228 RPM prop.

Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.