Ha. I ALWAYS do that... it drives me nuts if I find one not completely filled.

I taught the kids I had in 4-H to finish rockets that way, and one year one of them told me the judge looked at the rocket and asked if it was plastic. It was so smooth... and he did round the fin edges, but it was a performance model. Heck, I almost always round the edges on rockets built for performance. I just don't see the point on this rocket.

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NAR # 115523
Once upon a better day... SAM #0076
My site: http://rocketry.gonnerman.org

Wow!
Anybody criticizing your builds has never been to your website.
Sometimes I build with rounded fins, air foiled or squared.
Depends on the model and my mood.

Build it the way you want!
But I don't have to tell you that.

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Hans "Chris" Michielssen
Old/New NAR # 19086 SR

www.oddlrockets.com
www.modelrocketbuilding.blogspot.com
http://www.nar.org/educational-reso...ing-techniques/
Your results may vary
"Nose cones roll, be careful with that."
Every spaceman needs a ray gun.
Look out - I'm the Meister Shyster!

I view this post by Solomoriah as a "work in progress". Sort of like the bathroom remodel underway in my son's house. I think I'll hold off on my critique until it's finished.

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Wow, no pressure, eh?

I won't be rounding the fins on the Space Ship One. If I had been so inclined, GH effectively ordering me to would have ended that plan.

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NAR # 115523
Once upon a better day... SAM #0076
My site: http://rocketry.gonnerman.org

Hello new signature!!

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There's TWO ways to build; MY WAY, and then the other WRONG WAY.


Just Kidding.
Actually it looks like a great build.
Hope to hear it flies well.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !

Oh my.

He actually did chill.



I need to get some better primer before I finish this one. I'm down to my red oxide first-coat stuff, and all the Rustoleum has run out so it's just the cheap stuff I've received as gifts.

When I have it, I put a coat of red oxide primer on first, then prime and sand with gray. The rule is that you shouldn't sand through the last coat of primer... which of course means if you sand through the primer it's not your last coat. The red oxide acts as signal that I should stop sanding.

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NAR # 115523
Once upon a better day... SAM #0076
My site: http://rocketry.gonnerman.org

I prime most often with dark grey rustoleum with white rustoleum primer on top if I use spray-bombs.
Otherwise I use DuPont dark grey/light grey automotive Lacquer primer from a spray gun.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !

I'd probably use lacquer if I had a spray gun.

I like the Rustoleum Filler Primer in gray for most of my priming; they also have it in red oxide, so it's good all around for me. I've used the white, but they don't have it in the filler primer style so I mostly don't use it anymore.

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NAR # 115523
Once upon a better day... SAM #0076
My site: http://rocketry.gonnerman.org

With rockets that have fiber fins (or fibre, as Centuri spelled it), the "edges issue" isn't an issue at all... (Being only 0.050" thick [if I'm recalling Semroc's figure correctly], leaving fiber fins' edges square isn't a big deal, although I suppose they -could- be rounded or sharpened after first letting thin CA glue soak into the edges and cure, but that might cause the edges to expand and thicken--I've never tried it myself.)

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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR