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From: "Joe Hull" <joeh@pilgrimtech.com>
To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Erratic mixture
Date: Mon, 3 Apr 2006 10:35:24 -0700
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> >
> > -The intake charge will be denser from evaporative cooling which
> > should translate to an incremental increase in power (?)
> 
>     It turns out to be pretty much a wash. As the fuel evaporates, it
> expands. This pretty much cancels out the contraction of the air as it
> is cooled.
> 
> Bill Dube'

Is there even enough time at 6000RPM for the fuel to fully vaporize if
injected directly into the rotor housing and adequately mix throughout the
rotor area before the first spark goes off? Isn't there only maybe 1/100th
of a second between intake and spark? (2000RPM e-shaft x 37" mean circum. @
center of travel? / 60secs = 1233 in/sec)?

Joe Hull
Cozy Mk-IV #991 (Done Building! In Phase1 Flight Test - 0 hrs flown) 
Redmond (Seattle), Washington