#11
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The simplest way to recover a rocket with multiple Estes F15 motors is to cluster them!
Flight of my scratch-built Ultra Violet III on 3X F15 power:
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Lee Reep NAR 55948 Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor In the Paint Shop: Nothing! Too cold! Launch-Ready: Farside-X, Maxi Honest John, Super Scamp |
#12
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Bravo! Bravissimo!
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#13
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OK, here goes:
High in the sky was a lonely So Long, Yodel-ay, yodel-ay, yodel-ay-ee-oo. That’s all I’ve got—it’s a work in progress.
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#14
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Too bad there are no core-burning 29mm BP motors. Estes may have tried/be trying but cannot get it to not impersonate FSI... Bill
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It is well past time to Drill, Baby, Drill! If your June, July, August and September was like this, you might just hate summer too... Please unload your question before you ask it unless you have a concealed harry permit. : countdown begin cr dup . 1- ?dup 0= until cr ." Launch!" cr ; Give a man a rocket and he will fly for a day; teach him to build and he will spend the rest of his days sanding... |
#15
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WHYYYYY could Coaster/Centuri make reliable core-burning F impulse BP engines back in the 60's/70's but it cannot be done now with modern automated manufacturing ????
C'mon noww. Sounds like a bunch of Bovine Fecal Matter to me.....
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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 ! |
#16
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Do we know this to be true about Coaster/Mini-Max motors? Lee Piester told me that if a batch of Mini-Max motors failed during testing the whole lot was taken out to a place in the desert and buried. There is now a housing complex on that 'burial' site.
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Bob S.A.M. # 0014 |
#17
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I was never able to fly any Mini-Max motors back in the day (too young) and I have never tried to fly any I have in my collection. But, I have heard even they could be cato prone on occasion. But, I do not know to what degree. Earl
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Earl L. Cagle, Jr. NAR# 29523 TRA# 962 SAM# 73 Owner/Producer Point 39 Productions Rocket-Brained Since 1970 |
#18
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Just look at the CATO rates on the old FSI E60 and F100 motors. I never had a F100 fail, but did suffer from a 60% failure rate on the E60's. Centuri MIni max core burners would not be surprising. ANother problem with making them again would be the amount of hand labor you would have to do to drill out the core on each motor. THe seems to be the reason they don't make B14's any more. |
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