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Semroc Saturn 1B
I've got a Semroc Saturn 1B on it's way to my doorstep.
For those that have built this rocket, what was your preference...cluster or single engine? Thanks.
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-Jonathan NAR# 88886 birminghamrocketboys.com Roger, lift-off, and the clock is started! ~Alan Shepard |
#2
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Quote:
The cluster mount is more complicated to build - you have to cut slots in the tank tubes to allow the four motor tubes to fit into the middle of the group - but it is so much cooler! All that fire would certainly make the model look more realistic at launch. Mark \\.
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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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#3
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Cluster .
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Leo My rocket fleet and more @ Leo's Leisure Site and on YouTube - My latest project: ALTDuino |
#4
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Cluster!! My Estes K-29 kit (with Apogee Apollo capsule) now awaiting the finishing:
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Dave, NAR # 21853 SR. |
#5
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After all, the Saturn 1b was nicknamed "Cluster's Last Stand".
So I vote for cluster.
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"I'm a sandman. I've never killed anyone. I terminate runners when their time is up." Logan from "Logan's Run" http://sandmandecals.com/ |
#6
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<Grooooaaaannnnnn!> |
#7
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I went with a Single 24mm (wish 29mm was an option) as a single RMS24 F24W or F39T reload has roughly 50-52 n-sec total impulse whereas 4 Estes C6-5's only equal 36 n-sec total impulse. A single SU E15 or E30 has more impulse than the cluster of BP C's.
Also reliability is much higher with only ONE engine to ignite.
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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, and HAVOC ! |
#8
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Yea, sure but....there's only one flame! What's the fun in that?
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"I'm a sandman. I've never killed anyone. I terminate runners when their time is up." Logan from "Logan's Run" http://sandmandecals.com/ |
#9
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Never having to walk out to your smashed bird just to find that only 2 of the 3 motors lit? Been there, done that... hated it! |
#10
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You could always cluster Aerotech D24s for 74ns.
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