X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 14 Aug 2013 07:51:51 -0400 Message-ID: X-Original-Return-Path: Received: from nschwmtas05p.mx.bigpond.com ([61.9.189.149] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6416930 for lml@lancaironline.net; Tue, 13 Aug 2013 20:45:49 -0400 Received-SPF: none receiver=logan.com; client-ip=61.9.189.149; envelope-from=john@jjts.net.au Received: from nschwcmgw09p ([61.9.190.169]) by nschwmtas05p.mx.bigpond.com with ESMTP id <20130814004512.GFFO2020.nschwmtas05p.mx.bigpond.com@nschwcmgw09p> for ; Wed, 14 Aug 2013 00:45:12 +0000 Received: from [192.168.15.14] ([110.142.219.220]) by nschwcmgw09p with BigPond Outbound id CQlA1m00U4luXCm01QlAnY; Wed, 14 Aug 2013 00:45:12 +0000 X-Authority-Analysis: v=2.0 cv=bcfpoZzB c=1 sm=1 a=6xIvA0WTx9AVOJiHBW+VeQ==:17 a=d56vjV6BgfAA:10 a=mWj2dG5Z1nIA:10 a=mCSqThwqAAAA:8 a=IOEC-0khHlAA:10 a=HZJGGiqLAAAA:8 a=Ia-xEzejAAAA:8 a=m2giflinAAAA:8 a=jjqUt_clAAAA:8 a=J4SuX8sGdYhO58KUCSMA:9 a=wPNLvfGTeEIA:10 a=-3YckY0J8C0A:10 a=-ZBvsNeBbbMA:10 a=Clw1E9g7lcEA:10 a=HeoGohOdMD0A:10 a=EzXvWhQp4_cA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=nDoYcHF9gdCZfnSa_cIA:9 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=_W_S_7VecoQA:10 a=frz4AuCg-hUA:10 a=rnYgdqcAs4AA:10 a=_hM2FIH7StXGdRaH:21 a=6xIvA0WTx9AVOJiHBW+VeQ==:117 User-Agent: Microsoft-MacOutlook/14.3.6.130613 X-Original-Date: Wed, 14 Aug 2013 08:45:09 +0800 Subject: Re: [LML] Wing Cuffs for the Legacy From: John Smith X-Original-To: Lancair Mailing List X-Original-Message-ID: Thread-Topic: [LML] Wing Cuffs for the Legacy In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3459314711_188408" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3459314711_188408 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Hi Stan, I've posted a fair bit of info on the wing cuffs in recent months=8A=8A see if you can find, but if not, I'll put a story together for you. I believe I was the first Legacy RG to fit the cuffs in mid 2011 further to Lancair's testing on their company RG. I started flying my Legacy late 2010 with the outboard leading edge sections bare carbon whist I waited for my cuffs =AD Lancair wanted to be sure they were all as they should be before they sent them to me. But in summary =AD I feel they are a very worthwhile addition in respect of all of the characteristics you mention =AD but as I have noted a few times, for my installation at least =AD the stall speed did not reduce. There isn't much change =AD true =AD but if anything, stall speed is slightly higher =AD may be by 1 knot =AD but that's it. A friend of mine =AD Gary Weeks =AD routinely flies my aircraft and can directly compare with his own Legacy that does no= t have wing cuffs =AD prob best for him to chip in here with detailed more informed views, but I think he would agree that slow speed handling is terrific with the cuffs, better stability in the approach and generally makes the aircraft far more likely to tell you something is very wrong if you get too close to the stall =AD the airframe starts to shudder and carry on=8A.. As a relatively inexperienced pilot with just over 500hrs and almost 100 hours on the Legacy, I am very glad I have these cuffs in case one day = I become "distracted" and screw up! Lancair have videos of the original flight testing, and I'm sure Kim Lorenzten would be able to give you link to them on their website (the one = I have doesn't seem to work anymore) =AD if not I could send them to you via Dropbox or something as they are quite large files. I will take some video one day of my own =AD best demo would be continuous 30deg angle of bank turns dropping in and out of the stalled condition with full aileron control maintained through out! Hope this helps! Regards, John =20 John N G Smith Tel / fax: +61-8-9385-8891 Mobile: +61-409-372-975 Email: john@jjts.net.au From: Stan Fields Reply-To: Lancair Mailing List Date: Wednesday, 14 August 2013 3:49 AM To: Subject: [LML] Wing Cuffs for the Legacy > I am still building my Legacy but the wings are finished and in primer. = Now > Lancair has introduced a new product to add cuff airfoils to the outboard > section of the wings. > http://www.lancair.com/index.php/latest-news/335-legacy-cuffs > =20 > This "upgrade" addresses several of the Legacy's short comings voiced on = LML: > better roll control, reduced stall speed and enhanced stall warning buffe= t, > all without effecting the top speed. New Legacy kits will include the Cuf= fs at > no extra charge but as an upgrade the cuffs cost $1495. > =20 > Has anyone flown a cuffed wing aircraft? How may Legacy drivers would spr= ing > for the Cuff Upgrade to improve their Legacy's slow speed performance? If= new > Legacy kits come with the cuffs shouldn't I buy the upgrade just to preve= nt my > Legacy from being a "classic" before it's ever built? > =20 > Stan Fields > Legacy Kit 201 > Austin > =20 --B_3459314711_188408 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable
Hi Stan,

=
I've posted a fair bit of info on the wing cuffs in recent months= …… see if you can find, but if not, I'll put a story together fo= r you.

I believe I was the first Legacy RG to fit t= he cuffs in mid 2011 further to Lancair's testing on their company RG. I sta= rted flying my Legacy late 2010 with the outboard leading edge sections bare= carbon whist I waited for my cuffs – Lancair wanted to be sure they w= ere all as they should be before they sent them to me.

<= div>But in summary – I feel they are a very worthwhile addition in res= pect of all of the characteristics you mention – but as I have noted a= few times, for my installation at least – the stall speed did not red= uce. There isn't much change – true – but if anything, stall spe= ed is slightly higher – may be by 1 knot – but that's it. A frie= nd of mine – Gary Weeks – routinely flies my aircraft and can di= rectly compare with his own Legacy that does not have wing cuffs – pro= b best for him to chip in here with detailed more informed views, but I thin= k he would agree that slow speed handling is terrific with the cuffs, better= stability in the approach and generally makes the aircraft far more likely = to tell you something is very wrong if you get too close to the stall –= ; the airframe starts to shudder and carry on…..  As a relatively= inexperienced pilot with just over 500hrs and almost 100 hours on the Legac= y, I am very glad I have these cuffs in case one day I become "distracted" a= nd screw up!

Lancair have videos of the original fl= ight testing, and I'm sure Kim Lorenzten would be able to give you link to t= hem on their website (the one I have doesn't seem to work anymore) – i= f not I could send them to you via Dropbox or something as they are quite la= rge files.  I will take some video one day of my own – best demo = would be continuous 30deg angle of bank turns dropping in and out of the sta= lled condition with full aileron control maintained through out!
<= br>
Hope this helps!


Rega= rds,

John
John N G Smith
Tel / fax:    +61-8-9385-8891
Mobile:      +61-409-372-975
Email:         john@jjts.net.au
=

From: Stan Fields <sdfields68@att.net>
Reply-To: Lancair Mailing L= ist <lml@lancaironline.net>=
Date: Wednesday, 14 August 2013 3= :49 AM
To: <lml@lancaironline.net>
Subject: [LML] Wing Cuffs for the Legacy

<= /div>

I am still building my Le= gacy but the wings are finished and in primer.  Now Lancair has introdu= ced a new product to add cuff airfoils to the outboard section of the wings.= htt= p://www.lancair.com/index.php/latest-news/335-legacy-cuffs

 

This "upgrad= e" addresses several of the Legacy's short comings voiced on LML: better rol= l control, reduced stall speed and enhanced stall warning buffet, all withou= t effecting the top speed. New Legacy kits will include the Cuffs at no extr= a charge but as an upgrade the cuffs cost $1495.

 

Has anyone flown a cuffed= wing aircraft? How may Legacy drivers would spring for the Cuff Upgrade to = improve their Legacy's slow speed performance? If new Legacy kits come with = the cuffs shouldn't I buy the upgrade just to prevent my Legacy from being a= "classic" before it's ever built?

&= nbsp;

Stan Fields

Legacy Kit 201

Austin

 

<= /span> --B_3459314711_188408--