X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 23 Aug 2007 11:14:37 -0400 Message-ID: X-Original-Return-Path: Received: from mail09.syd.optusnet.com.au ([211.29.132.190] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTPS id 2280140 for lml@lancaironline.net; Thu, 23 Aug 2007 09:16:38 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.190; envelope-from=fredmoreno@optusnet.com.au Received: from fred (optussatellitebintb.22bjipb002.optus.net.au [59.154.24.148] (may be forged)) (authenticated sender fredmoreno) by mail09.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id l7NDFY8G027373 for ; Thu, 23 Aug 2007 23:15:50 +1000 From: "Fred Moreno" X-Original-To: "'Lancair Mailing List'" Subject: Re: wing leak X-Original-Date: Thu, 23 Aug 2007 21:19:47 +0800 X-Original-Message-ID: <029501c7e588$523582a0$c211140a@fred> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0296_01C7E5CB.6058C2A0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 Importance: Normal Thread-Index: Acflbcmfi17AGqlPQ66va10OfYr5OgAGUw+w This is a multi-part message in MIME format. ------=_NextPart_000_0296_01C7E5CB.6058C2A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Does anyone have good ideas for finding the leak location? I'm still building. Soapy water is fine except on vertical surfaces where it runs off too fast. Moreover a larger leak will not blow bubbles but will blow the water off in a small jet that is too small to detect. The way to improve your lead detection is to spray soapy water on the surface, then put Glad Wrap over the surface, sticking it to the wing surface with the water tension. Leaks now show as bubbles that form (sometimes very slowly) under the Glad Wrap. It is a particularly valuable technique for vertical services like wing leading edges. Fred Moreno ------=_NextPart_000_0296_01C7E5CB.6058C2A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Does anyone have good ideas for finding the leak location?  = I'm still building.

Soapy water is fine = except on vertical surfaces where it runs off too fast.  Moreover a larger = leak will not blow bubbles but will blow the water off in a small = jet that is too small to = detect.

 

The way to improve your lead = detection is to spray soapy water on the surface, then put Glad Wrap over the = surface, sticking it to the wing surface with the water tension.  Leaks now = show as bubbles that form (sometimes very slowly) under the Glad Wrap.  It = is a particularly valuable technique for vertical services like wing leading = edges.

 

Fred Moreno

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