Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Tue, 25 Mar 2003 08:46:51 -0500 Message-ID: X-Original-Return-Path: <13brv3@mchsi.com> Received: from sccmmhc01.mchsi.com ([204.127.203.183] verified) by logan.com (CommuniGate Pro SMTP 4.1b1) with ESMTP id 2085749 for flyrotary@lancaironline.net; Tue, 25 Mar 2003 08:30:58 -0500 Received: from rad ([12.218.74.116]) by sccmmhc01.mchsi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20030325133057.CTEO22382.sccmmhc01.mchsi.com@rad> for ; Tue, 25 Mar 2003 13:30:57 +0000 Reply-To: <13brv3@mchsi.com> From: <13brv3@mchsi.com> X-Original-To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Sump tank X-Original-Date: Tue, 25 Mar 2003 07:30:49 -0600 X-Original-Message-ID: <000001c2f2d2$c3243860$0201a8c0@rad> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 The Delta's 42gal tank is in the rear. It will take somewhere around 6ft = of pipe to run the tube back there. Would the tubing and amount of=20 return fuel be small enough that this would be an insignificant weight=20 for the complexity saved, or would I be better off with a sump in this = case? ------------------------- It looks to me like the return fuel line to the tank, will weigh much = less than any sump you could add. Of course the sump would increase fuel capacity some, but with 42 gallons already, you're not hurting for fuel. Also, if you don't have a reliable gravity feed to the sump, you'd have = to add another fuel pump, which is even more weight. =20 I have a 5 gallon tank that I had planned to install it in the nose of = my RV-3. For a lot of reasons, I've decided not to do that for now. If the weight, balance, and space will allow, I might eventually add it for the extra capacity. Pretty unlikely, unless I have to install it in the = tail to offset the weight of the turbo :-) Cheers, Rusty (still in radiator limbo)