X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from pan.gwi.net ([207.5.128.165] verified) by logan.com (CommuniGate Pro SMTP 5.2.6) with ESMTPS id 3070458 for flyrotary@lancaironline.net; Sun, 10 Aug 2008 22:46:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.5.128.165; envelope-from=silvius@gwi.net Received: from yourlk4rlmsu41 (bb-216-195-174-159.gwi.net [216.195.174.159]) by pan.gwi.net (8.13.1/8.13.1) with SMTP id m7B2jw81074389 for ; Sun, 10 Aug 2008 22:46:01 -0400 (EDT) (envelope-from silvius@gwi.net) Message-ID: <003401c8fb64$a293dd80$9faec3d8@yourlk4rlmsu41> From: "Michael Silvius" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: exhaust manifold Date: Sun, 10 Aug 2008 22:44:51 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1807 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1807 George: I don't have it in front of me, but If I am not mistaken right around 320 lbs. originally the O-290 was used but folks have gone up beyond that to the O-360 I heard of a fellow shoehorning an O-470 on one, (no thanks) On his Max shows an empty weight of 1200lbs and gross of 1850lbs. He is running a 13b with the RD1C and EC2 and reports 135-140 knots at 5500rpm Max has the front edge if the rear most iron at 11 inches from the firewall and he has his battery hanging on the firewall as well. I worked out the position on my engine to work at 9.5 inches from the firewall measured at the same position on the block. He does have the back seat that mine wont have. That space is good for about 150 lbs. But I will be putting a second fuel tank to feed the nose tank in its place. Michael ----- Original Message ----- From: "George Lendich" > Michael, > What is the firewall forward weigh limit on the F12? > George ( down under) >