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 Posted 8/21/2006 9:29:23 PM |
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Has NO LIFE!!
Last Login: 8/17/2016 5:46:32 PM
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| Posted 8/22/2006 4:10:51 AM |
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Forum Member
 
Last Login: 3/27/2010 4:47:19 AM
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| Countersunk bolts are gonna "sweat" and eventually crack your filler loose from the inside. The lexan expands and contracts at a different rate from the glass and works the bolts/screws loose after time. You need a material on the inside to buffer this and to take up the shock from opening and closing the canopy and from all the heat that builds up inside the car. Jack - Priscilla Barnes! Terry from Three's Company/Mallrats/License to Kill and Devil's Rejects. I went to "Geekfest" this weekend in Jersey (no race this weekend - Just a certain driver practicing his pit exits) to see some friends who have tables there and to FINALLY see Dan's cars in person. I'm working on my Black Beauty stretch limo and I wanted some closeup shots of how "Now Silent Bob" did the green headlights. Priscilla was there (with Batgirl and Catwoman, but I've met them before) and she was an absolutely fantastic lady. Can't say enough great things about her. Playboy Playmate of my childhood dreams, Cathy St. George, was there too and both women looked spectacular after all this time. 
Figured you'd rather see these pics instead of pics of Dan. (Plus, I don't have permission from Dan to display pics of his cars here.) But if you'd RATHER see pics of Dan's cars...
    
"Where does he get those wonderful toys?"
He MAKES them you idiot!
www.tunergirlz.com
www.codeoneauto.com
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| Posted 8/22/2006 11:08:31 AM |
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Resident CLTC
Last Login: 3/3/2024 6:39:56 PM
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I have installed canopies on military and civilian aircraft for almost thirty years now; I have never experienced the problem you are speaking of. Almost all aircraft canopies and civilian windscreens are installed in the same manor as I installed in my car. All canopies and windscreens require a felt, gasket or pliable material between the frame and glass, all are fastened with screws or structural rivets or a combination of both, all are countersunk for wind resistance. On all fighters and high altitude aircraft the screws are sealed over for cabin pressurization. On some aircraft that sustain high stresses around the cockpit areas I have installed small-rubberized grommets around the screw shanks to help cushion the rubbing and flexing stresses. B2 ½ is used to seal around the Lexan and window frame to insure a good weather seal. This process works fine on Mach 2+ aircraft it should work fine on a car that will rarely go over 90mph.
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| Posted 8/22/2006 12:46:08 PM |
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Yipee-ki-yay...
Last Login: 8/14/2013 8:15:11 PM
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| The military uses fiberglass canopies?
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| Posted 8/22/2006 1:31:12 PM |
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Resident CLTC
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| The aft transparencies are Lexan the front is different layers of composites. On the F4 the very front is combining glass. F4 Phantoms have three different types of glass and composites. Light aircraft have a high grade of Lexan. Jet airliners use a block of a composite that is stretched to the desired shape and thickness. Lexan is far superior to Plexi; it is stronger and more scratch resistant. It doesn’t yellow as fast as Plexi does. Plexi crazes easily, I would hope no one would use Plexi on their car.
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| Posted 8/22/2006 1:40:51 PM |
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Yipee-ki-yay...
Last Login: 8/14/2013 8:15:11 PM
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| I'm not asking about the lexan, I'm asking about the canopy that it attaches to..
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| Posted 8/22/2006 3:55:32 PM |
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Resident CLTC
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Sorry; yes military Acft use sheet aluminum not fiberglass, many Acft in general aviation and home builts use an aircraft grade fiberglass or composite. The installation is still the same no mater which Acft it is installed on. In some cases even the nuts are sealed with B1/2.
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| Posted 8/22/2006 5:56:06 PM |
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Yipee-ki-yay...
Last Login: 8/14/2013 8:15:11 PM
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| Aluminum is a lot different than fiberglass. I'd have to agree with Paul. It's been my experience that screws or bolts used directly in fiberglass with out any kind of backer (metal, wood, etc.) are going to eventually loosen up. I'd like to hear what Bob's opinion is on the matter.
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| Posted 8/22/2006 6:02:36 PM |
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Has NO LIFE!!
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I know exactly what Batgod is talking about. The fiberglass and metal cool and heat at different rates. I had heard this from a kit builder in Panama City a long time ago. This was in regards to all of the metal tubing that I glassed under the body for support, like under my hood. In the mornings when the dew is evaporating off the car it will evaporate from the areas without the metal first. Until all of the moisture evaporates it leave a skeleton outline wherever there is metal. Moister also collect at the areas where there is metal when it is foggy outside. (of course I only seen it in Florida when the car was outside and there was actually moister in the air). The Panama city builder had suggested putting a layer of Coremat between the fiberglass and metal.
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| Posted 8/22/2006 6:13:52 PM |
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Yipee-ki-yay...
Last Login: 8/14/2013 8:15:11 PM
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| Also the fiberglass will continue to shrink while the metal won't.
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