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Thanks guys for your patience, so… just to be clear. The minimum Height of each fin, must be 2.755″ from the body tube to the wing tip?Thanks again

That’s the DIAMETER of a circle circumscribed around the fins, also known as the Span-Diameter in RockSim. The semi-span minimum is 2.755″.

Howdy,Cowabunga, those would be HUGH! That’s a circumference of 19″ or 12 1/2″ across. Man, if that’s the case I’ll need to make them .010″ thick, so much for a mile high, hehe.

Hi,Was in the process of planning my fin design, so I though I’d double check just to be sure. The rules stat 5.51″ min. fin span.Is this a crossed or the circumference around the fins? If it’s circumference man those…   Read more»

Thanks, I found them.Ron

Contest rules have been posted on the Front Page, in the right hand Articles block. And we’re working with Darrell Mobley to get the Upscale Contest announced nationally. Thanks for asking.

Chad, I forgot to pick the rules sheets for this years contest at the meeting, are they online some place yet?Ron

Tailcone contributes to part of the total 1.0 meter length, but not the .85 length of 40mm diameter airframe. You must have .85 meters of 40mm diameter.I tried to think through the question of tailcones. You can add a tailcone…   Read more»

I believe they are 1.0. I got them from Randy as part of a package deal.They have been stored in my crawlspace (very low humidity) and haven’t turned into fun-noodles.Edward

Ed,Sorry to hear this. I was also on the verge of selling off some stuff before I finally found this position. Good luck in your search. I hope something turns up soon.If the lurker doesn’t pan out and you want…   Read more»

I’ll take the Blue Tubes!

That’s good.

Here’s an interesting advertizement//www.wimp.com/unofficialnasa/

Careful!! Could get into Politics again!

I like the stand also.

@Warren: You’re probably right about the weight.SARA’s launch site only has a 4,500′ waiver, with call-in windows to 6,500′ — they’re near one of the approach paths for Tucson International Airport. So, weight isn’t a big factor for them –…   Read more»

Hey,Yes, very nice video. Great ejection charge amonts, barely wiggled the camera. I always liked the clear working engine model, a clear loaded rocket (minus motor) would be really good for doing the outreach stuff, very visual.

Before the annual meeting, Bret–a composite geek like you, Warren–and thank god for both of you!, and I went to Ft. Collins Plastics, and I saw the clear plastic tubes. I was thinking about using a clear tube for electronics…   Read more»

I can almost see the fins. 🙂

Looks cool. I expect it would be quite heavy compared to an equivalent composite or paper/phenolic rocket.