#21
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Al, You don't have to get the glassing perfect. Cut your foam slightly smaller in dia. than what you need. Apply the glass/resin (or epoxy). Trim/rough sand any stuff that's sticking up. Get a can of bondo and use it in a similar fashion that you would use Fill-n-Finish on a balsa nosecone. If the diameter is still a little on the small side, more Bondo can be added to get it to spec. My 1/2 scale Aerobee Hi nosecone came out nice and the bondo was easy to shape and slick up for painting considering that's its purpose for car bodies. |
#22
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Al, The big conical in one of the pictures is a 10.5" dia 5:1 conical made by ScotGlas. He's got a big mold and doesn't make them very often ($350 list). I bought it to make a full scale UP Aerospace SpaceLoft XL, but my project partner(s) have backed out. Here's what the real rocket looks like (first flight to space from NM Spaceport)... http://www.rocketryonline.com/rolpr...dex.php?site=up You might recognize Bruce Lee in those pictures. I'll probably put the cone up for auction somewhere online. -John |
#23
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Yeah, but now the nose cone shell is 3" thick on one side, and 4" thick on the other side, right? Mark <grinning and ducking>
__________________
Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
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#24
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Well....it could be if he's that bad at glassing. |
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