Newsgroups: rec.aviation
Path: mythinc!moon!pixar!uupsi!psinntp!rpi!think.com!mips!pacbell.com!pacbell!varian!zehntel!pinot!steveg
From: steveg@pinot.zehntel.com (Steve Gallagher)
Subject: Commanche best glide
Message-ID: <1992Feb13.165839.16959@zehntel.com>
Sender: usenet@zehntel.com (News brat)
Reply-To: steveg@pinot.UUCP (Steve Gallagher)
Organization: Zehntel, Inc. Walnut Creek, CA
References: <1992Feb07.083910.16685@mythinc.uucp>
Distribution: usa
Date: Thu, 13 Feb 1992 16:58:39 GMT

>Does anyone know what best glide speed is for a Commanche 250?  My
>instructor and I combed many documents, but could not find it written
>down anywhere.  The general consensus was 90mph, but it would be
>nice to see it in writing.  Any suggestions?
>
Piper apparently didn't specify best glide data in their original flight
tests.

In the aircraft information manual for the Comanche 250, put together by
Doug Killough and advertised in the Comanche Flyer, he states that the
best glide speed at various gross weights is as follows:

	2900 lbs.	100 mph
	2700 lbs.	 96 mph
	2500 lbs.	 92 mph
	2300 lbs.	 88 mph

He determined these numbers by a combination of various rules of thumb and
verified,for at least some of the weights, with his own flight testing.