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Deleted by topic administrator 08-18-2008 02:01 AM
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zurzuna
08-02-2008
06:17 PM ET (US)
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mirc
chat
sohbet
çet
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Deleted by topic administrator 05-16-2008 02:19 AM
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Brigid
07-22-2006
02:55 AM ET (US)
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Hey, nice discussion. Just dropped by to say hi. Hope things are going well for you. Long time no talk, buddy :) Take care and look here protonix medication webpage devoted to protonix medication. amoxil antibiotic webpage devoted to amoxil antibiotic. .
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Deleted by topic administrator 07-21-2006 08:56 AM
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latshoopo
05-08-2006
05:50 PM ET (US)
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hey what are you talking about here monkeys?
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Stefan Jones  12-03-2002
07:59 PM ET (US)
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Gotta be more specific, kfury. Who made your F motor, and when was this? (I ask because big motors aren't currently banned in CA; anyone over 18 can buy E - G motors over the counter.)
* Except for a very limited run of composite motors offered for just one year, Estes motors have used black powder. A properly stored BP motor is usable for decades. One that's been knocked around and subject to hot and cold cycles can develop cracks; when lit, the greater exposed surface area can cause an explosion. Large (E, F) BP motors are kind of rare now, but when they were mishandled as mentioned above they could really make a mess.
* Composite motors are even more stable than BP. The fuel is a gritty, rubbery rubbery stuff, cast into cylinders with a slot to increase the burning area. Lighting the stuff requires lots of heat and pressure; you just can't touch a match to it. Turning it into an explosive would require you to laboriously grind it into little flakes. Any appreciable amount would cost you seriously big bucks, because rocket motors (or grains, for reloadable motors) are not cheap!
What's unfair about the ruling is that it doesn't distinguish between AP powder in big sacks (fertilizer) and AP bound up in pricey rocket motors in a form that just doesn't lend itself to use by miscreants. So, rocketry guys who fly the big stuff have to have explosives magazines, sign up for a explosives permit, and have BATF agents visit to check their paperwork. A big hassle, and a waste of the agents' time!
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kfury
12-03-2002
07:17 PM ET (US)
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Actually, the solid rocket propellant in Estes (and I assume other) rocket engines turns to powder after about three years. It warns about this on the package, and I have firsthand experience, having lit an F-engine (after they were banned in California, and had been sitting in my dresser for 4 years). It simply exploded, with great force, on the launchpad. Blew my rocket to smithereens and made a nice fireball.
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chico haas 12-03-2002
06:42 PM ET (US)
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Makes sense. The last thing we need in this country are kids interested in rocket science.
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