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  #11  
Old 01-05-2019, 03:13 PM
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SEL SEL is offline
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I have one of these somewhere. I'll dig it out and post a photo.


S.


Quote:
Originally Posted by tbzep
Many of us, including me, thought Estes started making plugged motors for the Astroblaster and Stratoblaster, and the land race cars.

I just noticed on the motor page of the 1964 catalog that they produced a plugged motor back then too. It was for use on test stands.

Discontinued after 1971.

It was listed as a B.84-0(P)
Later on it was relabeled B4-0(P), a plugged version of the current B4-2,4.

I'm sure this has been brought up before, but that's one of the few cool things about getting old. I get to discover new things every day, even though I knew all about it a few years ago!
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  #12  
Old 01-05-2019, 04:23 PM
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Quote:
Originally Posted by SEL
I have one of these somewhere. I'll dig it out and post a photo.


S.



See below. While I was digging, I found some old B3-6 motors (precursor to the B14's). The B4-0P I bought from Phred at NARAM 50. Has anyone heard from him lately?



S.
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Last edited by SEL : 01-05-2019 at 04:54 PM.
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  #13  
Old 01-05-2019, 05:14 PM
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Quote:
Originally Posted by SEL
See below. While I was digging, I found some old B3-6 motors (precursor to the B14's). The B4-0P I bought from Phred at NARAM 50. Has anyone heard from him lately?



S.

Wow, that just popped up an old, old memory of when Estes switched from pounds to Newtons on the engine designation. Not sure but it was right after I started so around 1967.

I recall my old chemistry set from that era - lots of neat chemicals, I remember making some of my own recovery wadding (there were instructions in the chemistry set for making the compound that made the tissue fire resistant) but quickly decided it was more trouble than it was worth.
My mom's only worry was that I start a fire with the alcohol burner that was part of the set.
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  #14  
Old 01-05-2019, 05:25 PM
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Recovery wadding is simple TP dipped into a water/borax solution and dried.
Really.
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  #15  
Old 01-05-2019, 06:02 PM
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Quote:
Originally Posted by ghrocketman
Recovery wadding is simple TP dipped into a water/borax solution and dried.
Really.

I know - like I said I made some myself ~ 50 years ago. But it's a lot of trouble considering how cheap it is to buy.
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  #16  
Old 01-05-2019, 07:19 PM
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Quote:
Originally Posted by ghrocketman
Recovery wadding is simple TP dipped into a water/borax solution and dried.
Really.


I still make my own — using 20 Mule Team Borax. I dunk an entire roll, drain it, and let it dry for a couple weeks. The crusty outer wraps are tossed, but it works great.

For midpower stuff, I use sheets of paper towels, dunked individually, and hung over a drying rack in my shop sink.

I’m a cheapskate ...
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Last edited by LeeR : 01-06-2019 at 11:29 AM.
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  #17  
Old 01-05-2019, 08:55 PM
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I use standard Crepe paper party streamers for wadding. By law this material has to be treated so it is non-flammable. I find it on sale at places like Walmart, stationary or party stores and have been able to purchse the 81' long rolls for as little as $0.25. It sure beats all the trouble of treating and drying TP to make wadding. Besides you can use it for a St. Louis arch effect!
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  #18  
Old 01-05-2019, 09:37 PM
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That's a great idea for wadding and far cheaper than the Estes packaged stuff.
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  #19  
Old 01-06-2019, 06:33 AM
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Quote:
Originally Posted by ghrocketman
That's a great idea for wadding and far cheaper than the Estes packaged stuff.
I have used it, too. The only drawback is that it's kinda stiff and thus won't conform as easily in shape - it is more prone to leaving a gap that lets hot gasses pass thru. So I mix a bit of regular wadding in with it to help get a bit better seal.

Doug


.
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  #20  
Old 01-08-2019, 06:01 PM
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Quote:
Originally Posted by Doug Sams
I have used it, too. The only drawback is that it's kinda stiff and thus won't conform as easily in shape - it is more prone to leaving a gap that lets hot gasses pass thru. So I mix a bit of regular wadding in with it to help get a bit better seal.

Doug


.

I switched over to dog barf for most stuff - the exception being small body tubes (where the dog barf can sometimes act to much like a plug and prevent good ejection.
Less than $10 for a bale at Home Depot - last one lasted me 15 years before I had to get another bale (and that included a lot of big, high power rockets with 4" to 8" diameter body tubes).
I do still use a bit of the Estes stuff, but so little that a package lasts a year or more so it's not worth messing with anything else.
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