Return-Path: Received: from web125.yahoomail.com ([205.180.60.193]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with SMTP id com for ; Tue, 25 Apr 2000 18:56:37 -0400 Received: (qmail 4642 invoked by uid 60001); 25 Apr 2000 23:02:23 -0000 Received: from [38.28.162.167] by web125.yahoomail.com; Tue, 25 Apr 2000 16:02:23 PDT Message-ID: <20000425230223.4641.qmail@web125.yahoomail.com> Date: Tue, 25 Apr 2000 16:02:23 -0700 (PDT) From: Gary Matusch Subject: header tanks To: lancair.list@olsusa.com X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Why the obsession with header tanks among lancair pilots/builders. I've heard the old saw about gavity being more dependable then fuel pumps. The truth is any fuel system that requires attention every 20 to 30 minutes or the engine will die of fuel starvation is an accident looking for a place to happen. A proper fuel system should draw direct from the main tanks and if the pump fails you should then be able to switch to the header. If your pump fails and the header is nearly empty (2-3 gals. You only have enough fuel to choose place to arrive at (remember lancairs don't do off field landings well without power. I don't think they do off field landings well with power but thats only imhu. I could be wrong but I think the practice of flying on the header tank fuel then reloading it from the main is somewhat like playing Russian Roulette. I realize the original plans call for this design but the original plane (Lancair 100/200) engine had no engine fuel pump. Thanks for the listen. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>