From: kenpowell@comcast.net
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: intake ideas? & cooling 
Date: Sun, 18 Apr 2004 00:03:51 +0000
Message-Id: <041820040003.29985.4081C5E6000D68AC000075212200735446FF93939A88908F919A@comcast.net>

One other advantage of the 'short intake' if your primary use is as a cross country cruiser.  If you cruise at 8000 ft (75%) power or above and the trottle plate is wide open you should be able to add extensions upstream (toward the plenum) to tune the intake length and find the sweet spot.  The throttle plate may cause some disruption but this should get you 'most' of the benefits of a tuned intake.  After you find the sweet spot, rebuild the intake 'one last time', right Rusty!!!  Remember that the 'ideal' length varies pretty significantly based on temp and pressure, which is why ED is working on a variable length intake, which is the only real solution.

BTW, on a totally unrelated subject, I think that both Al Gietzen and David Carter have the intake system figured out best (if somewhat differently).  Seems that there are probably several ways to do this and still have an efficient system (after all, several guys are flying without problems).  Luckily, I'll have the luxury of just copying what works by the time I fly.

Ken Powell
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