No pat answers
Guess what I discovered this morning... Probably not the best build technique to taper your root edge! Jeez! Got my delta fins turned around in my mind and/or wasn't paying too much attention as I am building three in parallel.
Best thing is that they are delta fins. I might be able to flip 'em over, maybe cut a bit off the new trailing edge and be fine (and save myself a trip to the hobby store). I'll have to sim with some slightly smaller fins just to make sure.
BAR jack of all trades
Yep... I've had that happen. Kinda sucks when it does, don't it??Originally Posted by dixontj93060
Now I always make some kind of a mark to designate the root edge before sanding the fins... prevents that sort of mistake.
Later! OL JR
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done that a few times. just to share in a silly mistake, i managed to glue two fins onto the wrong end of a rocket this morning.
UKRA 1547
L2
Midland Rocketry Secretary
Bio-Llama is watching you
It must be one of those days....
So far today I have dropped a CA soaked balsa NC into a dust pile, got urethane glue on my finger and smudged it all over the place, and finally primed two rockets with what turned out to be gloss white paint.
Time to go to the house...
Layne Pemberton NAR# 83083
Mad Scientist, Minion and Owner
PembertonTechnologies.com
P.O. Box 250760
North Little Rock AR, 72225
L1 on Pem-Tech Space Ark
pem_tech (at) Yahoo (dot) com
TRF (at) pembertontechnologies (dot) com
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L2 - CTI Certify With Us - 4" HMAS Bonestell build
Under Development: Marza as of 04/29/06, Ten-Ten (10-10) as of 03/01/07, LPR M2-Mars Challenger 04/17/07, Starship Achilles as of 07/30/07, Goonie Kraken as of 07/12/08 (Thanks to Jewel Barton), The Gorgon as of 02/12/2010, Sorta' Saturn VII Gemini Launch Vehicle as of 08/08, Lemon Aid as of 08/15/08, Arcturus as of 08/25/06, MPR Bonestell
as of 1/21/07, Orion Boom-Boom as of 07/01/08,Gorgon 2010
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And let Trudie feed the Llamas.
I ain't brushed my teeth in 23 years and I ain't about to start now. - My brother-in-law.
Not kidding.
Bio-Llama is watching you
Layne Pemberton NAR# 83083
Mad Scientist, Minion and Owner
PembertonTechnologies.com
P.O. Box 250760
North Little Rock AR, 72225
L1 on Pem-Tech Space Ark
pem_tech (at) Yahoo (dot) com
TRF (at) pembertontechnologies (dot) com
---------------------------------------------------
L2 - CTI Certify With Us - 4" HMAS Bonestell build
Under Development: Marza as of 04/29/06, Ten-Ten (10-10) as of 03/01/07, LPR M2-Mars Challenger 04/17/07, Starship Achilles as of 07/30/07, Goonie Kraken as of 07/12/08 (Thanks to Jewel Barton), The Gorgon as of 02/12/2010, Sorta' Saturn VII Gemini Launch Vehicle as of 08/08, Lemon Aid as of 08/15/08, Arcturus as of 08/25/06, MPR Bonestell
as of 1/21/07, Orion Boom-Boom as of 07/01/08,Gorgon 2010
Born Again Member
Did the opposite last year. Had a rocket painted with nice gloss white (it really was done ..), and picked up the can of white primer to give it "just one more wet coat" ...[...]
and finally primed two rockets with what turned out to be gloss white paint.
Time to go to the house...
I now use Sharpie and write "primer" on my cans of primer - on the lid, and the bottom of the can, since I sometimes store them upside-down. I have some cans of gloss gray, so it was going to be just a matter of time before I did it on a gray rocket as well.
No pat answers
Hey, a blessing in disguise. Trimming the size of the fins ~1/3rd increases the performance by 4-5% across the board and still maintains a healthy stability margin. "Yeah, its a feature, not a bug."
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