EXACTLY. Thank you. said like a true powderburner. PLus there's the added expense and complexity of electronics staging.

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"Old Rocketeer's don't die; they just go OOP".....unless you 3D print them.

you know...in that link you posted username 5x7 says AT had booster motors in the 80's with 0 delay times......that's an interesting historical footnote that I was aware of..... if true, I wonder why they ceased making them? Has the internals of composite motors changed all that much since the 80's? I know Gary was active all the way back to the mid-70's with composites and he was part of SSRS ? (Crown Rocket Technology) and Composite Dynamics and other very early composite motor manufacturers back then.

sure enough.... I just got through reading a 1982 Crown Technology catalog (over on Niinfingers) and it has -0 composite motors . So what happened to -0 composite motors.?

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"Old Rocketeer's don't die; they just go OOP".....unless you 3D print them.

If I recall correctly, the "booster" motors had a short delay and ignited a length of theralite to start the upper stage motor. Never did it so don't know how reliable that technique was. The big issue today is the unavailability of thermalite. The little that I have, for "historical" purposes, is probably unreliable. Usually the thermalite was sheathed in teflon tubing which greatly increased its burn rate.

Chas

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Charles Russell, MSgt,USAF (ret.)
NAR 9790, Lvl 1
SAM "Balls Three"

thanks Chas.....back to the past into the Future

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"Old Rocketeer's don't die; they just go OOP".....unless you 3D print them.

I think the boosters were all endburners, it made the timing of burnout and staging easy.

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For warranty questions & issues please contact Karl at warranty@aerotech-rocketry.com
For customer service questions & issues please contact Jenn at customerservice@aerotech-rocketry.com

AeroTech Consumer Aerospace
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2113 W 850 N
Cedar City, UT 84721
435-865-7100 (Ph)
435-865-7120 (Fax)
http://www.aerotech-quest.com
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http://www.specificimpulse.com

It's another giant CROCK OF CRAPOLA from BATFE that Thermalite is not UNregulated.
Another Non-explosive they have granted power upon themselves to regulate.

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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 !

I’m in that boat. The last time I went out to fly high power, back around 2000, I had a whopping two flights. Both were dual deploy. Granted, things are a little easier now, but I drove home questioing what in the world was I doing — driving that distance and getting two flights.
I fly F and G reloads occasionally, but I am in full “nostalgic model rocket building and flying” mode. I missed out on some great kits in the 70s and early 80s when I was in college, and then getting married and starting a family. I’m still on the lookout for some of the great kits from that time period.

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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