X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 13 May 2007 14:16:30 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m20.mx.aol.com ([64.12.137.1] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2042219 for lml@lancaironline.net; Sun, 13 May 2007 12:39:38 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.1; envelope-from=MikeEasley@aol.com Received: from MikeEasley@aol.com by imo-m20.mx.aol.com (mail_out_v38_r9.2.) id q.c30.12427cee (30738) for ; Sun, 13 May 2007 12:38:43 -0400 (EDT) From: MikeEasley@aol.com X-Original-Message-ID: X-Original-Date: Sun, 13 May 2007 12:38:43 EDT Subject: Re: [LML] Re: IO-550 fuel injection X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1179074323" X-Mailer: 9.0 Security Edition for Windows sub 5365 X-Spam-Flag: NO -------------------------------1179074323 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Gene, You have done the SB on the tubing right? The sucking force of the engine drawing fuel is much stronger than the blowing force of the NACA. The NACA can't blow our wings up like a balloon, but the engine driven pump can create enough vacuum to buckle the wing skins. I think I'm doing the math right, with 1/4" ID tubing, and 15 GPH the air would move about 20" a second through the tube. With 3/8" tubing it's more like 9" a second. Mike ************************************** See what's free at http://www.aol.com. -------------------------------1179074323 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Gene,

You have done the SB on the tubing right?

The sucking force of the engine drawing fuel is much stronger than the=20 blowing force of the NACA. The NACA can't blow our wings up like a=20 balloon, but the engine driven pump can create enough vacuum to buckle the w= ing=20 skins.

I think I'm doing the math right, with 1/4" ID tubing, and 15 GPH the a= ir=20 would move about 20" a second through the tube. With 3/8" tubing it's=20= more=20 like 9" a second.

Mike

See what's free=20= at AOL.com.

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