X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-d09.mx.aol.com ([205.188.108.133] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6313332 for lml@lancaironline.net; Fri, 07 Jun 2013 12:52:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.108.133; envelope-from=Sky2high@aol.com Received: from mtaomg-db01.r1000.mx.aol.com (mtaomg-db01.r1000.mx.aol.com [172.29.51.199]) by omr-d09.mx.aol.com (Outbound Mail Relay) with ESMTP id 5E78C700000B8 for ; Fri, 7 Jun 2013 12:52:02 -0400 (EDT) Received: from core-mtb004a.r1000.mail.aol.com (core-mtb004.r1000.mail.aol.com [172.29.234.205]) by mtaomg-db01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 12A3CE000085 for ; Fri, 7 Jun 2013 12:52:02 -0400 (EDT) From: Sky2high@aol.com Full-name: Sky2high Message-ID: <129e3c.290f4f24.3ee369b1@aol.com> Date: Fri, 7 Jun 2013 12:52:02 -0400 (EDT) Subject: Re: [LML] Changed subject to Gap Seals To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_129e3c.290f4f24.3ee369b1_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1370623922; bh=w+t2WZPUOeacnCIhhos7jgMsKepXW6KO7qSZIIWG01Y=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=kNOOWlmMjrQzwQlKoh8CuyogAjCaqS1YSfzvT4FurTbo3XCtNNqPQrJAp1t1lAcRG 7Gg1znu9IkeAfdqaXSmyL1J2+TcY4p2Vk2naiC519vKgdLz1d8ZZRKU0Lqji7hZXEe C7NqpaLFJ7nG6bwF8+MoJQWyYBwB+jjwMCRDoMns= X-AOL-SCOLL-SCORE: 0:2:505523840:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d33c751b20fb265b2 --part1_129e3c.290f4f24.3ee369b1_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Do an internet search for "glider gap seals" as a start. Grayhawk In a message dated 6/7/2013 9:43:17 A.M. Central Daylight Time, danny@n107sd.com writes: 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_ (mailto: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_ (http://www.n91cz.net/) Sent from my spiffy iPad On Jun 4, 2013, at 3:55 AM, Rob Murawski <_rob@robmurawski.com_ (mailto:rob@robmurawski.com) > 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 <_peterpawaviation@hotmail.com_ (mailto:peterpawaviation@hotmail.com) > Reply-To: Lancair Mailing List <_lml@lancaironline.net_ (mailto:lml@lancaironline.net) > Date: Tuesday, June 4, 2013 7:42 AM To: <_lml@lancaironline.net_ (mailto:lml@lancaironline.net) > 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 = --part1_129e3c.290f4f24.3ee369b1_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Do an internet search for "glider gap seals" as a start.
 
Grayhawk
 
In a message dated 6/7/2013 9:43:17 A.M. Central Daylight Time,=20 danny@n107sd.com writes:
=

Speaking of gap seals= , any=20 recommendations on where to get them, how to attach them, whether to put = them=20 on a painted surface or sand it down?

 

 

Danny

LNC2-360=20 Mk-II

Nothing is foolproof = to the=20 sufficiently talented fool.

 

 

 

From: Sky2high@a= ol.com=20 [mailto:Sky2high@aol.com]
Sent: Friday, June 07, 2013 9:41=20 AM
To: lml@lancaironline.net
Subject: [LML] Re: VORTE= X=20 GENERATORS

 

chris_zavatson@yahoo.com=20 writes:

Being=20 somewhat interested in aircraft efficiency, two quotes from the VG webs= ite=20 jumped out at me.

 

On=20 the Lancair page:=20

" A=20 10 knot reduction in the stall speed; much better low speed handling an= d=20 no reduction in the cruise speed."=20

Then=20 on the FAQ page:

" At=20 maximum power, you may experience a 0-4 mph reduction, but this= =20 depends on the particular aircraft. At normal cruising speed there= is=20 no noticeable reduction. "

 

For=20 me maximum power typically is cruise power.  The speed loss= will=20 tend to be on the higher side in a low drag=20 airframe.

 

VGs=20 locally energize the boundary layer to keep the flow attached.  Th= is=20 takes energy. Unfortunately a nice laminar flow section is turned into = a=20 partially turbulent flow wing. Everything is a=20 trade-off.

 

A=20 previous link on the LML to Bob Belshe's 235 VG mod also reported a=20 reduction in cruise speed of a couple knots.

 

Here=20 is another link to a flight test report of a Bonanza with a VG=20 upgrade.

http://www.nar-associates.com/technical-flying/vortex/Vg= s_cruise_wide_screen.pdf=20


Chris=20 Zavatson

N91CZ

360std

www.N91CZ.net

<= /DIV>


Sent=20 from my spiffy iPad


On=20 Jun 4, 2013, at 3:55 AM, Rob Murawski <rob@robmurawski.com>=20 wrote:

Nice=20 info on the VG's!  I've been contemplating whether to install th= e=20 extended wingtips on my 360 MkII, now it looks like I have another op= tion=20 to reduce the stall speed.  Assuming I even need=20 that.

 

This=20 doesn't make the decision-making process any=20 easier.

 

-Rob

Lancair=20 360MkII

15%=20 Complete

Pittsburgh,=20 PA

 

From:=20 PETER=20 WILLIAMS <peterpawaviation@hotmail= .com>
Reply-To:=20 Lancair Mailing List <lml@lancaironline.net>Date:=20 Tuesday, June 4, 2013 7:42 AM
To: <lml@lancaironline.net>Subject:=20 [LML] VORTEX GENERATORS

 

HI=20 THERE

here is the link for vortex generator kits for Lancair= =20 aircraft

http://www.pnwaero.com/Lancair.htm

i was v= ery=20 happy with the company and with the results

peter=20 williams

=3D

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