Return-Path: Received: from [69.171.52.140] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 5.0.1) with HTTP id 820720 for lml@lancaironline.net; Sat, 05 Nov 2005 23:51:58 -0500 From: "Marvin Kaye" Subject: Re: 14 vs 28 volt system To: lml X-Mailer: CommuniGate Pro WebUser v5.0.1 Date: Sat, 05 Nov 2005 23:51:58 -0500 Message-ID: In-Reply-To: References: X-Priority: 3 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for "Mark & Lisa" : Have you tried posting on the Aero-electric mail list? Bob Nuckolls presides over the list; he has published a work called the Aeroelectric Connection and conducts seminars on electrical system design and construction. Check out http://www.aeroelectric.com to see Bob's website and order his book. Check out http://www.matronics.com to subscribe to the email list. The short answer to your question is stick with a 14 volt system unless you have special needs. 28 volt components are less available and consequently more expensive. Some components aren't available with a 28 volt option -- trim servos come to mind -- requiring the use of a step-down transformer to make 14 volts from 28 volts adding expense, complexity and inefficiency. The most-often quoted advantage to 28 volt systems is weight savings due to smaller AWG (American Wire Gage)wires. In reality, the difference in wire size *might* save you 5 lbs -- at the expense of fewer options and a more costly system. Subscribe to the email list and you'll have access to the archives. A quick search of the Aero-electric list archives will turn up a wealth of info on this subject. Mark & Lisa Sletten Legacy FG N828LM http://www.legacyfgbuilder.com