Return-Path: Received: from fed1rmmtao05.cox.net ([68.230.241.34] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 759246 for flyrotary@lancaironline.net; Fri, 25 Feb 2005 12:45:56 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.34; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao05.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050225174512.HDJJ7956.fed1rmmtao05.cox.net@BigAl> for ; Fri, 25 Feb 2005 12:45:12 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Vapor Lock Date: Fri, 25 Feb 2005 09:45:15 -0800 Message-ID: <002501c51b61$c367bae0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0026_01C51B1E.B5447AE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0026_01C51B1E.B5447AE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: [FlyRotary] Re: Vapor Lock =20 There is another phenomina that exists that would be very subtle. People = can design fluid flow 'flip-flop' circuits, that will take two streams that merge into one outlet, and can make them draw from either side with the momentary application of a side pressure. Once started, the flow = continues from the given side until it is purposely reversed. I can envision (but don't know how to design) a situation where there is a subtle difference that encourages that behavior. =20 Bill Schertz KIS Cruiser # 4045 =20 Bill; =20 I think that is a factor if there is sufficient flow that there are = inertial and pressure drop effects. Here we have a line that normally has very = low air flow. Maybe in the event of a fuel cap leak drawing high flow = through the vent it could be an issue; but even in that case there are bigger problems than the vent imbalance. =20 Al ------=_NextPart_000_0026_01C51B1E.B5447AE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Subject: [FlyRotary] Re: Vapor Lock

There is = another phenomina that exists that would be very subtle. People can design fluid = flow 'flip-flop' circuits, that will take two streams that merge into one = outlet, and can make them draw from either side with the momentary application = of a side pressure. Once started, the flow continues from the given side = until it is purposely reversed. I can envision (but don't know how to design) a = situation where there is a subtle difference that encourages that = behavior.

Bill = Schertz
KIS Cruiser # 4045

Bill;

I think that is a factor if there = is sufficient flow that there are inertial and pressure drop effects. = Here we have a line that normally has very low air flow. Maybe in the = event of a fuel cap leak drawing high flow through the vent it could be an issue; = but even in that case there are bigger problems than the vent = imbalance.

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