Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!xerox.com!Campbell.SV From: Campbell.SV@XEROX.COM Newsgroups: net.aviation Subject: Re: Switching Fuel Tanks Message-ID: <860317-081844-3214@Xerox> Date: Mon, 17-Mar-86 11:18:43 EST Article-I.D.: Xerox.860317-081844-3214 Posted: Mon Mar 17 11:18:43 1986 Date-Received: Wed, 19-Mar-86 00:52:09 EST References: <7900035@uiucdcs> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 12 They don't do it because it would cost money. High wing airplanes such as the 152 or Skyhawk do have a both position. Gravity ensures a steady flow of fuel. On a low wing airplane, which uses a fuel pum,p you have to have a central header tank that both fuel tanks would feed into. The engine would be driven by this tank which would always have fuel in it even with the wings banked. But it costs more money and the header tank takes up room and reduces the load of the airplane because of it's weight. But it can be done. I know this for a fact because my Swift does have a header tank and the fuel switch only says on or off, not left, right and off. Rick Campbell N3344K