#31
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All of this "logic" talk makes me hungry for a little "Breakfast"... "When I was young, it seemed that life was so wonderful,MarkII
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Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
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#32
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Ah yes, probably my favorite Supertramp album and my favorite song on the album.
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Scott D. Hansen Ye Olde Rocket Shoppe - Your One Stop BAR Shoppe! Ye Olde Rocket Plans - OOP Rocket Plans From 38 Companies! Ye Olde Rocket Forum WOOSH NAR Section #558 |
#33
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Another early design for the A2. This time, a tri-cluster...
I just call it "Scruffy"... Altitudes of 961' with a Dv of 6 FPS or less, and flies from a 36" x 1/8" rod... Enjoy!
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 |
#34
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Too funny
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Even if I had all the free parts and helpers like these boys do I would still use RockSim . Quote:
I didn't see the humor at first but now I do. Kinda sad though that Estes is so far behind the times. Quote:
Me too, duck and cover My favorite way to fire back is to post a new design and say " All Semroc Parts" I wish we would of answered the other question as well. James Pierson NAR# 77907 . |
#35
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And now for something completely different...
The new Estes Taser Twin, using an A2-0/A2-5 combination... Not a bad combination, except for the little requirement of an 80" launch rod...
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 Last edited by CPMcGraw : 05-05-2009 at 10:50 PM. Reason: Sad oopsie, didn't see the flight data in time... |
#36
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The only thing I worry about in staging is the .06" nozzle in the upper stage. Not a very good target. One thing we were playing with in the 70's was "doping" the entrance on upper stage engines with BP paint. May have to look at that again.
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Carl McLawhorn NAR#4717 L2 semroc.com |
#37
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Continued...
But, if you swap the A2-0 with an A10VS-0, the results are much nicer. Launch rod now is back within the realm of sanity. It can use a 36" x 1/8" rod, and only requires 14" of that...
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 |
#38
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My pleasure, Carl. Unfortunately, the A2-0 doesn't have enough OOMPH to get cracking, but your A10VS-0 appears to be the ticket. If we extend the engine tube up to the base of the sustainer engine, it might constrain more of the hot particles up toward that needle hole. An internal "stuffer tube" might constrict it some more, but there does get to be a 'point of no return'. I take it a nozzle opening of 0.06" is a 'fixed figure', and anything larger just wouldn't allow enough pressure to build in the chamber, right? What about painting something like the coating of an igniter up into the BP area? Something that would fire a bit hotter and more quickly?
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 Last edited by CPMcGraw : 05-05-2009 at 11:36 PM. Reason: That which is known to kill more cats than semi trucks... |
#39
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Yeah!! Just mount 8 feet of 1/8" steel rod onto your launch pad, and you'll be good to go! And don't worry, that much rod won't get whipped around - I promise... (Kind of like fly fishing with rockets! Now quick! - Everyone into that blockhouse!!!) MarkII P.S. I saw your subsequent mod, Craig, but you know me - I couldn't resist...
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Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
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#40
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That is what I mean by "doping" the entrance.
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Carl McLawhorn NAR#4717 L2 semroc.com |
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