Return-Path: Received: from smtp7.gateway.net ([208.230.117.251]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Sun, 24 Sep 2000 01:15:28 -0400 Received: from oemcomputer (1Cust145.tnt1.coeur-dalene.id.da.uu.net [63.27.107.145]) by smtp7.gateway.net (8.9.3/8.9.3) with SMTP id BAA24551 for ; Sun, 24 Sep 2000 01:22:24 -0400 (EDT) Message-ID: <000b01c025e9$26860960$916b1b3f@oemcomputer> Reply-To: "dfs" Reply-To: lancair.list@olsusa.com From: "dfs" To: "Lancair List" Subject: Zap! Bif! Wham! 42 Volts in your future? Date: Sat, 23 Sep 2000 22:34:44 -0700 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Y'all have a long way to go when it comes to unique voltages on an airplane. We used 230/400 volts ac, "wye" four wire 400 Hz, on the B-1 to reduce the wire size and weight. The double voltage to cut the current by 50% in comparison to 120 volt systems, cutting the total wire weight by nearly half, and 400 Hz to cut the size of all magnetic components (like transformers and motors and such) to as little as 1/6 th the 60 Hz size. Since I don't have quite so many miles of wiring in my Lancair, 12 vdc works just fine. Of course I subscribe to the KISS principle, which ain't all that bad for such simple airplanes. (Lancair IV's excluded, since they border on the "not simple"). Point being, don't get carried away. Dan Schaefer >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>