Return-Path: Received: from marvkaye.olsusa.com ([205.245.9.214]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with SMTP id AAA5930 for ; Mon, 30 Nov 1998 20:04:38 -0500 Message-Id: <3.0.3.32.19981130200131.02c71e18@olsusa.com> Date: Mon, 30 Nov 1998 20:01:31 -0500 To: lancair.list@olsusa.com From: Peter Field (by way of Marvin Kaye ) Subject: Cutting the SS firewall X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Re cutting out the SS firewall. All I did was carefully draw out the firewall outline on a cardboard sheet, cut the cardboard out, check the cardboard outline for fit on the airplane, transfer the outline to the SS sheet, and cut it out with a good pair of tin snips. A few strategically drilled holes makes for easier cutting on the tighter radii. It might have taken me 20 minutes and made my right hand a little tired, but that was all there was to it. If you have access to a grinding wheel or have one for a hand held drill you can easily make final adjustments or do as I did, just trim with the snips. Avoid dull snips, obviously. I used the same technique for the fiberfrax insulation. A fresh set of Wiss snips goes for $16 -18 in the Wicks catalog, but I've seen the same snips in local hardware stores for around the same price. Good Luck! Cheers, Pete