Mailing List flyrotary@lancaironline.net Message #4243
From: Eric Ruttan <ericruttan@chartermi.net>
Subject: Re: [FlyRotary] Re: DIE Summary
Date: Thu, 6 Nov 2003 07:31:29 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>


Ah, from the complex to the pure and simple.

<snip>
    Now the only thing that does not appeal to me is we generally like
cool
denser air rather than heated air for the intake.  But, hey! the concept
certainly has simplicity on its side. I think there is some rule of thumb
that tells you how much power you loose for each 10F raise in intake temp,
but I can't recall what it is.  So if the loss in power due to the heated
air is minor compared to the potential DIE power, the concept might be a
winner.


Thumb says 1% for 10 degrees. 2% if it's a turbo.  I am not sure but  I
think thumb was refering to degrees Celcius.


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