Return-Path: Received: from lanfear.nidlink.com ([216.18.128.7]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Sun, 2 Apr 2000 12:05:33 -0400 Received: from enaila.nidlink.com (root@enaila.nidlink.com [216.18.128.8]) by lanfear.nidlink.com (8.9.0/8.9.0) with ESMTP id JAA26239 for ; Sun, 2 Apr 2000 09:02:28 -0700 (PDT) Received: from regandesigns.com (tnt132-144.nidlink.com [216.18.132.144]) by enaila.nidlink.com (8.9.0/8.9.0) with ESMTP id JAA21045 for ; Sun, 2 Apr 2000 09:02:27 -0700 (PDT) Message-ID: <38E752BD.DC877B5C@regandesigns.com> Date: Sun, 02 Apr 2000 09:01:33 -0500 From: Brent Regan To: Lancair List Subject: Re: Aft pressure bulkhead, IV-P X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I ran into the same problem you describe. My solution was to move the whole bulkhead back 1.5 inches to achieve the desired gap at the window and to eliminate the 350 bracket. If the seat bottom and seat back are properly joined then the 350 bracket is just adding weight without contributing to the bulkhead strength. I have built two IV-Ps and tested both to 7.5 PSI with no problems. Regards Brent >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>