Mailing List lml@lancaironline.net Message #48447
From: <marv@lancair.net>
Subject: Re: [LML] FAA and Lancair Accidents
Date: Thu, 21 Aug 2008 10:57:16 -0400
To: <lml>
Posted for "terrence o'neill" <troneill@charter.net>:

 I suggest that we come to the EAA with  some proposals, for the EAA to
consider adopting and perhpas relaying to the FAA..
 As might be expected, my usual suggestion  is that someone do  wind tunnel
models of the various Lancairs and take data on pitching moments, for stall
recovery.  NASA Langley might be interested,as they were with canards like
Piper's, and did studies also of the Dragonfly tanden wings ... and they
discovered marginal restoring pitching moments at stall AOAs.  They also have
a spin-tunnel.  I mention these two things because they are  a serious concern
of the FAA in TC-ing standard category aircraft, and I have not seen any
reports, data or testing information other then incipient stalls, and
reluctance to evaluate recovery from developed stalls or spins, and I noted
several test pilot reports that criticized the light pitlot pitching force per
G.
 In other words, lets evaluate the designs rather than carp on more and more
training .... this group is fraught with very qualified pilots, and they are
having accidetns.  The cause, imho, is likely elsewhere.
 Respectfully offered,
 Terrence
 L235/320 N211AL
 
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