X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from m12.lax.untd.com ([64.136.30.75] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with SMTP id 1030296 for flyrotary@lancaironline.net; Fri, 10 Mar 2006 22:21:17 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.136.30.75; envelope-from=alwick@juno.com Received: from m12.lax.untd.com (localhost [127.0.0.1]) by m12.lax.untd.com with SMTP id AABCBESR5AVG8R7J for (sender ); Fri, 10 Mar 2006 19:20:27 -0800 (PST) Received: (from alwick@juno.com) by m12.lax.untd.com (jqueuemail) id LJ6B5JD6; Fri, 10 Mar 2006 19:19:43 PST To: flyrotary@lancaironline.net Date: Fri, 10 Mar 2006 19:18:34 -0800 Subject: Re: [FlyRotary] Vortex generators Message-ID: <20060310.191858.4024.3.alwick@juno.com> X-Mailer: Juno 5.0.33 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=--__JNP_000_73d2.39e2.702a X-Juno-Line-Breaks: 8-6,9-18,20,25-32767 From: al p Wick X-ContentStamp: 2:3:2618955946 X-MAIL-INFO:29f3f3c76aea1e178b9e0fc7a30fae37634aca0fda135eaa6adaca4adab3dac3730a9a3af3fac7cbc78a6a93ae4e8e9317eace0adb976b0b7a47d757b357cfe7df2f57ebfe6702e7e702af8f67fb X-UNTD-OriginStamp: L941HVjjYzDhN3itp//mkMd+HdFHnL8WrNPetmdMGzvlJW+isB/9Zw== X-UNTD-Peer-Info: 127.0.0.1|localhost|m12.lax.untd.com|alwick@juno.com 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. ----__JNP_000_73d2.39e2.702a Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I did my testing using duct tape to hold VG's to plane. This worked well on Cozy which has ducting at rear of plane where there is thick boundary layer. -al wick Artificial intelligence in cockpit, Cozy IV powered by stock Subaru 2.5 N9032U 200+ hours on engine/airframe from Portland, Oregon Prop construct, Subaru install, Risk assessment, Glass panel design info: http://www.maddyhome.com/canardpages/pages/alwick/index.html On Fri, 10 Mar 2006 21:25:32 -0500 "John Downing" writes: Is it being implied here that vortex generators positioned before the tunnel outlet on the bottom of cowl will help pull the air out of the cowling? If this were to work it may save me the trouble of installing cowl flaps. Presently I'm working on the cowling and trying to figure out the inlet plenums for the coolers. JohnD ----__JNP_000_73d2.39e2.702a Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: quoted-printable

I did my testing using duct tape to hold VG's to plane. This worked = well on=20 Cozy which has ducting at rear of plane where there is thick boundary=20 layer.

-al wick
Artificial intelligence in cockpit, Cozy IV powered by= =20 stock Subaru 2.5
N9032U 200+ hours on engine/airframe from Portland,=20 Oregon
Prop construct, Subaru install, Risk assessment, Glass panel = design=20 info:
http:= //www.maddyhome.com/canardpages/pages/alwick/index.html

On Fri, 10 Mar 2006 21:25:32 -0500 "John Downing" <downing.j@sbcglobal.net>=20 writes:

Is it being implied here that vortex = generators=20 positioned before the tunnel outlet on the bottom of cowl will help pull = the=20 air out of the cowling? If this were to work it may save me the = trouble=20 of installing cowl flaps. Presently I'm working on the cowling and= =20 trying to figure out the inlet plenums for the coolers. =20 JohnD

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