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contestRoc · Competition Model Rocketry
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Group Information

  • Members: 422
  • Category: Rockets
  • Founded: Dec 15, 2001
  • Language: English
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Activity within 7 days:

35 New Messages - New Questions

Description

Competition Rocketry is open to anyone who is interested in competition model rocketry.
Participants of National Association of Rocketry sanctioned competition are specifically invited to join in, and FAI Spacemodelers are very welcome too! :-)
Team America Rocketry Challenge participants are probably best served by joining the TARC YahooGroup, but are certainly welcome here to learn about the wider world of competition model rocketry.

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Re: Polycrylic
I neglected to mention the significance of the section modulus S. This is used to determine the amount of bending stress fb, which is equal to the moment
Posted - Sat Jul 4, 2009 2:46 am
 roketrik
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NARAM-51 Tips Pages Draft
I have uploaded the draft version of the NARAM-51 Tips pages, at this link: http://tinyurl.com/mkywor A few pages are "new", like the Random Altitude Page. And
Posted - Sat Jul 4, 2009 1:30 am
 gcgassaway@...
gcgassaway
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Re: Polycrylic
... It's all a matter of degrees. In terms of time/money spent versus benefits obtained, using the quasiglass method as an alternative to V-bagging a wing can
Posted - Fri Jul 3, 2009 6:23 pm
 roketrik
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Re: Polycrylic
... Here's a reply to an email I got offlist. Probably Too Much Information but what the heck, it's a holiday weekend & gives me an excuse to avoid work! In a
Posted - Fri Jul 3, 2009 6:11 pm
 roketrik
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Re: Polycrylic
... That is correct, I made no attempt to vacuum-bag; I just brushed on enough epoxy to saturate the nylon without puddling. It's intended as a simple,
Posted - Fri Jul 3, 2009 5:53 pm
 roketrik
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 371 136 182 224 125 224 22
2008 483 119 251 157 446 290 259 534 86 168 112 688
2007 176 35 94 286 164 235 214 1378 256 340 606 142
2006 203 420 281 29 71 55 223 589 305 123 111 4
2005 417 189 179 139 213 152 163 415 126 69 260 358
2004 402 91 158 275 265 121 351 199 162 138 164 790
2003 492 145 29 212 686 749 584 1322 473 449 229 422
2002 23 178 98 466 204 110 265 301 631
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