contestRoc at Yahoo! Groups

Re: Polycrylic

roketrik — Sat, 04 Jul 2009 02:46:49 GMT

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

NARAM-51 Tips Pages Draft

gcgassaway@... — Sat, 04 Jul 2009 01:30:29 GMT

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

Re: Polycrylic

roketrik — Fri, 03 Jul 2009 18:23:31 GMT

... 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

Re: Polycrylic

roketrik — Fri, 03 Jul 2009 18:11:54 GMT

... 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

Re: Polycrylic

roketrik — Fri, 03 Jul 2009 17:53:55 GMT

... 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,

Re: Polycrylic

kkooch2002 — Fri, 03 Jul 2009 14:42:36 GMT

... No, thats not my point. He recommended (or maybe you did) this technique as an alternative to vac-bagging. An alternate yes, but a pretty poor one at

Re: Polycrylic

Ez2cDave@... — Fri, 03 Jul 2009 13:39:25 GMT

Kevin, I don't think that Rick did any vac-bagging, just brush on and sand smooth. A good test would be to apply the "Quasiglass" and then vac-bag the first

Re: Polycrylic

kkooch2002 — Fri, 03 Jul 2009 03:54:48 GMT

... So, the nylon weighed 2.4g and you had to add around 20g! of epoxy to get a presumably smooth surface? Most composite vac-bagged layups are 50/50. If

Re: Polycrylic

Ez2cDave@... — Fri, 03 Jul 2009 03:13:03 GMT

Rick, Maybe if you threw in a "starship load" of advanced Calculus and other exotic formulae that probably fewer than 1% of the people in the room have a clue

Re: Polycrylic

roketrik — Fri, 03 Jul 2009 02:28:06 GMT

... Thanks, but I'd need a LOT more data points for that to happen. Maybe next year... Rick

N-51 Guest Registration

Steve Foster N51 CD — Fri, 03 Jul 2009 00:43:24 GMT

Hi again, Since I've had a couple inquires about this just within the past week or so, we added in a "guest" option for those who may want to attend NARAM but

B Altitude model plan for NARAM?

gcgassaway@... — Fri, 03 Jul 2009 00:04:48 GMT

This is another thing being added to the NARAM tips page. Anyone have any info or links for B Altitude models? It does not seem like ASP rocketry or QCR have

NARAM-51 Registration - July 8th

Steve Foster N51 CD — Thu, 02 Jul 2009 16:17:06 GMT

Hi I have two reminders for all those procrastinators who may be thinking about starting to build your NARAM models; first you'll want to register and if you

Re: Random Altitude Tips for NARAM?

Lee James, NAR 15058 SR — Thu, 02 Jul 2009 14:42:25 GMT

Howdy, George and all y'all! http://www.tccnar.org is The Competition Consortium's home page. Some individual sub-page address will be

Re: Polycrylic

rdwoebke — Thu, 02 Jul 2009 13:28:59 GMT

... Nice Rick, looks like you have a pretty sweet NARAM R&D going here. Good luck with it. Ryan