Return-Path: Received: from marvkaye.olsusa.com ([205.245.9.83]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with SMTP id com for ; Wed, 31 Mar 1999 10:23:20 -0500 Message-Id: <3.0.3.32.19990331102528.0098cbf0@olsusa.com> Date: Wed, 31 Mar 1999 10:25:28 -0500 To: lancair.list@olsusa.com From: Marvin Kaye Subject: LNC2 Fuel system plumbing X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> What is the best method for plumbing the wing tanks to the header?? I assume that the manual calls for each tank to provide fuel to a separate Facet pump, and the pumps then plumb directly into the header, correct? If this is the case, then a failure of a single pump would mean that you couldn't pump from that tank... not a good thing. Would it not make some sense to put a crossover valve into the system (before the transfer pumps) which could attach the two tanks together allowing their fuel levels to equalize and the remaining pump to deliver fuel from both tanks at once? (I know someone posted a message recently about the crossover, but I haven't been able to locate it, sorry.) Any input will be greatly appreciated.