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  #11  
Old 09-03-2010, 04:05 PM
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LeeR LeeR is offline
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Quote:
Originally Posted by UCBadger
I really loved my short engine two stage midget.

http://www.ninfinger.org/rockets/no...a/70est036.html




OK, Doug must be at work, and not able to reply, so here is his website full of Midgets:

http://www.doug\79.com/DougsRockets/
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  #12  
Old 09-03-2010, 04:17 PM
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Quote:
Originally Posted by Royatl
Tiny would be much more obvious than thirteen. Especially since their competition, the MPC Minijets were labeled "m" for Mini, and their own "s" engines were for "short."


I think that the "T" was just what came after the "S". And the Estes E motors are certainly the U-series motors (for "uber-D").

Then again, maybe not ...
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  #13  
Old 09-03-2010, 09:14 PM
Rocket Doctor Rocket Doctor is offline
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A motor with the "T" is commonly referred to as the Mini motors
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  #14  
Old 09-03-2010, 09:27 PM
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Quote:
Originally Posted by UCBadger
I really loved my short engine two stage midget.
Quote:
Originally Posted by LeeR
OK, Doug must be at work, and not able to reply, so here is his website full of Midgets:

http://www.doug79.com/DougsRockets
I got one of my biggest thrills in this hobby flying one of these. I keep chasing that, hoping for a repeat of that thrill

Doug

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  #15  
Old 09-03-2010, 09:35 PM
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Quote:
Originally Posted by Royatl
Tiny would be much more obvious than thirteen. Especially since their competition, the MPC Minijets were labeled "m" for Mini, and their own "s" engines were for "short."
I always figured T for "tiny", too.

To add, as for "m" and mini, Centuri, too called theirs Mini-Motors, but used a capital M in the suffix of the motor designation versus a small m for MPC - eg, Centuri ¼A4-2M .

Doug

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  #16  
Old 09-03-2010, 10:23 PM
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Quote:
Originally Posted by Doug Sams
I always figured T for "tiny", too.

To add, as for "m" and mini, Centuri, too called theirs Mini-Motors, but used a capital M in the suffix of the motor designation versus a small m for MPC - eg, Centuri ¼A4-2M .

Doug

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I'll bet that since 2 competitors were using the M Estes went with the T to be different

All 3 companies came out with 13mm motors within a year but I think Estes was last
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  #17  
Old 09-04-2010, 12:35 AM
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Quote:
Originally Posted by Bazookadale
I'll bet that since 2 competitors were using the M Estes went with the T to be different

All 3 companies came out with 13mm motors within a year but I think Estes was last



No, Centuri was definitely the last. Some time in 1973. I was doing my senior year in high school and was winding down my rocketry activities to a launch every few months. They were only on the market for a short while, and by the time I got to buy some more engines, they were off the market and they had switched to selling relabeled Estes mini motors. I managed to buy a bagful of mini-"B" motors in 1977 from a hobby store going out of business. Still have most of them.
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  #18  
Old 09-04-2010, 05:38 AM
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Quote:
Originally Posted by Royatl
No, Centuri was definitely the last. Some time in 1973. I was doing my senior year in high school and was winding down my rocketry activities to a launch every few months. They were only on the market for a short while, and by the time I got to buy some more engines, they were off the market and they had switched to selling relabeled Estes mini motors. I managed to buy a bagful of mini-"B" motors in 1977 from a hobby store going out of business. Still have most of them.


I stand corrected on that - I do remember MPC showing off minijets at pittcon in 1971 and the following year Estes and Centuri having their minis advertised at pittcon '72 but maybe not in production yet
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