Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.4.7) with ESMTP id 795515 for rob@logan.com; Tue, 05 Jun 2001 13:33:29 -0400 Received: from cdihost.cdicorp.com ([207.79.152.5]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71175U5500L550S0V35) with SMTP id com for ; Tue, 5 Jun 2001 13:07:56 -0400 Received: from HQ-EDI by cdihost.cdicorp.com via smtpd (for [63.150.212.2]) with SMTP; 5 Jun 2001 17:15:36 UT Received: from cdim-pts-mail.cdicorp.com (CDIM-PTS-MAIL [172.17.131.3]) by hq-edi.cdicorp.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id MC7SKLVD; Tue, 5 Jun 2001 13:15:30 -0400 Received: by CDIM-PTS-MAIL with Internet Mail Service (5.5.2650.21) id ; Tue, 5 Jun 2001 13:15:30 -0400 Message-ID: From: "Rumburg, William" To: "'lancair.list@olsusa.com'" Subject: RE: 200 HP on a 320 OK? Date: Tue, 5 Jun 2001 13:15:29 -0400 MIME-Version: 1.0 Content-Type: text/plain X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> > That firewall seems pretty thin and weak doesn't it? > > Do you need to beef up the firewall/gear any if you want to slap a 200 HP > IO360 + varr pitch prop on the front of a 320?<<< Claudio - I believe that Lancair has approved the "320/360" airframe for up to 180 HP. Any more than that and you're on your own (and truly in the experimental realm). The firewall itself does not carry the thrust forces. The triangular chocks at the engine mount attach locations transfer those forces into the fuselage. Bill Rumburg N403WR (Sonic bOOm) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>