X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Tue, 23 Jan 2007 10:36:17 -0500 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTP id 1784980 for lml@lancaironline.net; Tue, 23 Jan 2007 10:33:05 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.35; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d03.mx.aol.com (mail_out_v38_r7.6.) id q.bf0.b50ced5 (57341) for ; Tue, 23 Jan 2007 10:31:38 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Tue, 23 Jan 2007 10:31:35 EST Subject: Re: [LML] Re: Nose strut inspections - all models X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1169566295" X-Mailer: 9.0 Security Edition for Windows sub 5358 X-Spam-Flag: NO -------------------------------1169566295 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 1/23/2007 9:09:32 A.M. Central Standard Time, colyncase@earthlink.net writes: found my vibration problem. Now I'm trying to figure out why I'm 25 knots slower than the current fast-build product. Test pilot thinks my leading edge results in non-laminar flow. Colyn, Don't leave us hanging (so to speak), what was the vib from? Sounds like you are ready for some tufting. Lancair wings should demonstrate Laminar flow to around 2/3 of the way back. BUT, the bottom is also very important as the laminar flow can extend further back if the surface is smooth with no dents or rivet heads. Hard to se the tufts on the bottom. Grayhawk -------------------------------1169566295 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 1/23/2007 9:09:32 A.M. Central Standard Time,=20 colyncase@earthlink.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

found my vibration problem. Now I'm trying to figure out=20= why=20 I'm 25 knots slower than the current fast-build product. Test pilot=20 thinks my leading edge results in non-laminar=20 flow.

Colyn,

Don't leave us hanging (so to speak), what was the vib from?

Sounds like you are ready for some tufting. Lancair wings should=20 demonstrate Laminar flow to around 2/3 of the way back. BUT, the bottom is a= lso=20 very important as the laminar flow can extend further back if the surface is= =20 smooth with no dents or rivet heads. Hard to se the tufts on the=20 bottom.

Grayhawk

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