Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Sun, 30 Jun 2002 23:00:31 -0400
Message-ID: <redirect-1540087@logan.com>
From: James Frantz <LFrantz@compuserve.com>
Subject: [LML] Re: stall/spin testing
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	 charset=ISO-8859-1
Content-Disposition: inline

Message text written by INTERNET:lml@lancaironline.net
>To me, when you sign off your Lancair after the test phase
25 or 40 hours as (to paraphrase) "fully tested", it ought to have been.<=


I refer you to Advisory Circular AC-90-89 page 5-9, the Amateur-Built
Aircraft Flight Testing Handbook.  Quote:

Caution #1  --  If the manufacturer/designer of your aircraft  has not
demonstrated satisfactory spin characteristics and safe recovery, avoid a=
ll
types of high angle of attack flight testing and placard the aircraft:
"spins prohibited."

BTW, you are signing off the aircraft as "adequately tested" not "fully
tested."  See AC 90-87.  Also please note the E-mail subject "stall/spin
testing".  Of course you test for falps down slow flight handling, Vx, Vy=
,
best glide, etc.

I'm not trying to be cute about this.  I just don't like the thought of a=
ny
one of our community being misled by suggestions that we must do flight
testing that simply isn't required and in some instances may not be safe.=


James B. Frantz
Proprietary Software Systems, Inc. =

www.angle-of-attack.com
LFrantz@compuserve.com
(952) 474-4154