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Charlie’s suggestion is the most creative I saw – I especially like the disclaimer. I really appreciate all the input and have to apologize for not stating that there are bulkhead fittings in the root of the aft spar. I was thinking it would be difficult to silicone the box perimeter of the spar entry cuff – especially the back side so I was thinking to use the cover boxes for that effort. I think now that the best way is to simply seal the cuff with silicone because bottom line it will be much cleaner and easier than trying to seal up the box. Thanks to all. John From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Charlie Kohler
Sent: Wednesday, November 14, 2012 4:59 AM
To: lml@lancaironline.net
Subject: [LML] Re: Pressurization - IVP here is an old trick I used. using scrap pieces of fiberglass cut to make a boot similar to what we have around our control stick. On a clean nonstick surface, coat of fiberglass with an even, generous slathering of silicone. Then work this piece around the tubing and over the whole just as you did when you cut it. Make sure there is a generous bond area and support from behind so that it will support a minimum 10 PSI. the fiberglass impregnated with the silicone is incredibly strong-- but don't trust it. I used RTV to seal all the wiring coming in from the wings, along with the speedbrake cables and pitot tube. I also cut out openings in the two covers that cover the rear spar bolts. I installed nutplates and then made covers with gaskets so that I could remove the wings without At Las Vegas last month, I removed the wings, start to finish including fuel dump, in slightly less that 4 hours. ( I hope you have better luck than I did) On Mon, Nov 12, 2012 at 2:11 PM, John Barrett <jbarrett@carbinge.com> wrote: I'm attempting to button up the pressure vessel in preparation for first
pressurization. These two photos are of boxes to seal off the aft spars
where they enter the cockpit just in front of the rear seat on the floor.
Any thoughts on a good way to seal off these fuel lines?
Thanks,
John Barrett
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