Mailing List flyrotary@lancaironline.net Message #39557
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: RV-7A Cooling
Date: Sun, 23 Sep 2007 19:20:42 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Ok, I can see if you are at 5000 MSL on the ground in Arizona that it might be 90F 1500 ft higher, I'm just surprised to see those type of Temps this side of Colorado at 6500 MSL.
 
Ed
----- Original Message -----
Sent: Sunday, September 23, 2007 5:29 PM
Subject: [FlyRotary] Re: RV-7A Cooling

Ed Anderson wrote:
However, when you say inlet temps - do you mean inlet to your ducts or is that the inlet to your throttle body.  The  reason I ask is 90F seems very high for OAT at 6500 MSL and since you are using that figure to determine your Delta T across your cores, you need to insure that it is correct.

Ed,

   I'm not that familiar with Dennis's part of the world, but - as
hot as the PHX area gets - there are places in Texas and Florida
that get hotter on a given day and weather.

  FFZ (Mesa, AZ) is roughly 1400' elevation.  If the ambient
temperature at the field is 110 - which it often is,.this time of
the year - the temperature at 6500' is ~95F.  (And I'm glad to have
that *cool* up there.)

Dale R.
COZY MkIV #497 Ch.12


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