Return-Path: Received: from [65.33.165.125] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 4.2.5) with HTTP id 489215 for lml@lancaironline.net; Thu, 28 Oct 2004 01:18:53 -0400 From: "Marvin Kaye" Subject: Re: [LML] Tuft testing To: lml X-Mailer: CommuniGate Pro WebUser Interface v.4.2.5 Date: Thu, 28 Oct 2004 01:18:53 -0400 Message-ID: In-Reply-To: References: X-Priority: 3 MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format="flowed" Content-Transfer-Encoding: 8bit Posted for "Rick Lafford" : How about checking the wing fuselage junction and the underside of the wing. A somewhat more sensitive method is to brush on a coat of used diesel oil, fly the a/c while taping then land to give the flow pattern a close look. Any flow disruption will really stand out. Can be done both top and bottom but I'd expect a separation bubble on the lower surface. After the test we use a citrus based cleaner to de-mess the wing. Rick Lafford Dansville, NY """ Well, being a future air racer, I thought I would be a good experimenter and find out how the airflow acted over the top of my wing at different airspeeds. I dutifully tufted a section of the top left wing with cotton tufts and launched with a video camera. """