X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 07 Jun 2013 10:43:06 -0400 Message-ID: X-Original-Return-Path: Received: from oproxy6-pub.bluehost.com ([67.222.54.6] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with SMTP id 6312885 for lml@lancaironline.net; Fri, 07 Jun 2013 10:31:33 -0400 Received-SPF: neutral receiver=logan.com; client-ip=67.222.54.6; envelope-from=danny@n107sd.com Received: (qmail 28070 invoked by uid 0); 7 Jun 2013 14:30:58 -0000 Received: from unknown (HELO host295.hostmonster.com) (66.147.240.95) by oproxy6.bluehost.com with SMTP; 7 Jun 2013 14:30:57 -0000 Received: from [98.233.210.64] (port=50652 helo=DannysW7PC) by host295.hostmonster.com with esmtpa (Exim 4.80) (envelope-from ) id 1Ukxgv-0005hv-4E for lml@lancaironline.net; Fri, 07 Jun 2013 08:30:57 -0600 From: "Danny" X-Original-To: "'Lancair Mailing List'" Subject: Changed subject to Gap Seals X-Original-Date: Fri, 7 Jun 2013 10:30:53 -0400 X-Original-Message-ID: <001701ce638b$9e022df0$da0689d0$@n107sd.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0018_01CE636A.16F76BC0" X-Mailer: Microsoft Outlook 14.0 Thread-Index: Ac5ji5zcio5haPRDQQGhkC4nOQrZAg== Content-Language: en-us X-Identified-User: {3234:host295.hostmonster.com:wunderwe:n107sd.com} {sentby:smtp auth 98.233.210.64 authed with danny@n107sd.com} This is a multipart message in MIME format. ------=_NextPart_000_0018_01CE636A.16F76BC0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Speaking of gap seals, any recommendations on where to get them, how to attach them, whether to put them on a painted surface or sand it down? Danny LNC2-360 Mk-II Nothing is foolproof to the sufficiently talented fool. From: Sky2high@aol.com [mailto:Sky2high@aol.com] Sent: Friday, June 07, 2013 9:41 AM To: lml@lancaironline.net Subject: [LML] Re: VORTEX GENERATORS Chris, Dittos. Didn't Bob Belshe say he eventually retained the vortex generator only forward of the ailerons with better low speed control with them and less reduction in cruise speed. If ya add gap seals ya can get the cruise speed back and even increase control surface aukthority.............. Grayhawk In a message dated 6/7/2013 7:12:09 A.M. Central Daylight Time, chris_zavatson@yahoo.com writes: Being somewhat interested in aircraft efficiency, two quotes from the VG website jumped out at me. On the Lancair page: " A 10 knot reduction in the stall speed; much better low speed handling and no reduction in the cruise speed." Then on the FAQ page: " At maximum power, you may experience a 0-4 mph reduction, but this depends on the particular aircraft. At normal cruising speed there is no noticeable reduction. " For me maximum power typically is cruise power. The speed loss will tend to be on the higher side in a low drag airframe. VGs locally energize the boundary layer to keep the flow attached. This takes energy. Unfortunately a nice laminar flow section is turned into a partially turbulent flow wing. Everything is a trade-off. A previous link on the LML to Bob Belshe's 235 VG mod also reported a reduction in cruise speed of a couple knots. Here is another link to a flight test report of a Bonanza with a VG upgrade. http://www.nar-associates.com/technical-flying/vortex/Vgs_cruise_wide_screen .pdf Chris Zavatson N91CZ 360std www.N91CZ.net Sent from my spiffy iPad On Jun 4, 2013, at 3:55 AM, Rob Murawski wrote: Nice info on the VG's! I've been contemplating whether to install the extended wingtips on my 360 MkII, now it looks like I have another option to reduce the stall speed. Assuming I even need that. This doesn't make the decision-making process any easier. -Rob Lancair 360MkII 15% Complete Pittsburgh, PA From: PETER WILLIAMS Reply-To: Lancair Mailing List Date: Tuesday, June 4, 2013 7:42 AM To: Subject: [LML] VORTEX GENERATORS HI THERE here is the link for vortex generator kits for Lancair aircraft http://www.pnwaero.com/Lancair.htm i was very happy with the company and with the results peter williams = ------=_NextPart_000_0018_01CE636A.16F76BC0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Speaking of gap seals, any recommendations on = where to get them, how to attach them, whether to put them on a painted = surface or sand it down?

 

 

Danny

LNC2-360 = Mk-II

Nothing is foolproof to the sufficiently = talented fool.

 

 

 

From:= = Sky2high@aol.com [mailto:Sky2high@aol.com]
Sent: Friday, June = 07, 2013 9:41 AM
To: lml@lancaironline.net
Subject: = [LML] Re: VORTEX GENERATORS

 

C= hris,

&= nbsp;

D= ittos.  Didn't Bob Belshe say he eventually retained the vortex = generator only forward of the ailerons with better low speed control = with them and less reduction in cruise speed.  If ya add gap seals = ya can get the cruise speed back and even increase control surface = aukthority..............

&= nbsp;

G= rayhawk

&= nbsp;

I= n a message dated 6/7/2013 7:12:09 A.M. Central Daylight Time, chris_zavatson@yahoo.com = writes:

=

B= eing somewhat interested in aircraft efficiency, two quotes from the VG = website jumped out at me.

<= o:p> 

O= n the Lancair page:=

&= quot; A 10 knot reduction in the stall speed; much better low speed = handling and no reduction in the cruise = speed." =

T= hen on the FAQ page:<= o:p>

&= quot; At maximum power, you may experience a 0-4 mph = reduction, but this depends on the particular aircraft. At = normal cruising speed there is no noticeable = reduction. "

<= o:p> 

F= or me maximum power typically is cruise power.  The speed = loss will tend to be on the higher side in a low drag = airframe.

<= o:p> 

V= Gs locally energize the boundary layer to keep the flow attached. =  This takes energy. Unfortunately a nice laminar flow section is = turned into a partially turbulent flow wing. Everything is a = trade-off.

<= o:p> 

A= previous link on the LML to Bob Belshe's 235 VG mod also reported a = reduction in cruise speed of a couple = knots.

<= o:p> 

H= ere is another link to a flight test report of a Bonanza with a VG = upgrade.

<= a = href=3D"http://www.nar-associates.com/technical-flying/vortex/Vgs_cruise_= wide_screen.pdf" = title=3D"http://www.nar-associates.com/technical-flying/vortex/Vgs_cruise= _wide_screen.pdf">http://www.nar-associates.com/technical-flying/vortex/V= gs_cruise_wide_screen.pdf =

<= br>Chris Zavatson

N= 91CZ

3= 60std

<= a href=3D"http://www.n91cz.net/" = title=3D"http://www.n91cz.net/">www.N91CZ.net

<= br>Sent from my spiffy iPad

<= br>On Jun 4, 2013, at 3:55 AM, Rob Murawski <rob@robmurawski.com> = wrote:

N= ice info on the VG's!  I've been contemplating whether to install = the extended wingtips on my 360 MkII, now it looks like I have another = option to reduce the stall speed.  Assuming I even need = that.

<= o:p> 

T= his doesn't make the decision-making process any = easier.

<= o:p> 

-= Rob

L= ancair 360MkII

1= 5% Complete

P= ittsburgh, PA

<= o:p> 

From: PETER WILLIAMS <peterpawaviation@hotmail.co= m>
Reply-To: Lancair Mailing List <lml@lancaironline.net>
<= b>Date: Tuesday, June 4, 2013 7:42 AM
To: <lml@lancaironline.net>
<= b>Subject: [LML] VORTEX = GENERATORS

<= o:p> 

H= I THERE

here is the link for vortex generator kits for Lancair = aircraft

http://www.pnwaero.com/Lanca= ir.htm

i was very happy with the company and with the = results

peter = williams

=

=3D=

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