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  #11  
Old 03-29-2021, 03:24 AM
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Quote:
Originally Posted by Ez2cDave
As I see it, the relevancy depends on who "we" consists of. Not everyone has the same "history" on the subject and a "newcomer" to this thread might have the piece of information to help answer the question(s) at hand. Frankly, we may never know the answer, but it's worth investigating.

Dave F.


Fair enough. So, MRC motors became available in 1986-88? I first saw them in a Rose's Department Store in Athens, GA in 1988. These were the Saxon-made motors, so Saxon must have made them for their domestic market sometime before that, or did they even have a domestic market. I can't find my Stuart Lodge book to ascertain what motors were available in the UK at that time. From what I can tell the blue card export motors from Estes were the only fully commercial motors available anywhere in Europe before that. If you don't count those low thrust Rapier motors for hand launched gliders. There's a german company called Held which I find little about (i think they are mentioned in Lodge's book) and they had a C2 or 3, and a D7. But they weren't a big concern. And all the other euro motor makers were small niche, competition market players.
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  #12  
Old 04-08-2021, 01:24 PM
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Speaking of Held motors...had these in a box that I could pull put easily

They are booster motors, the BP ends just a few mm from the top. They are dated from 1981; there are I think 5 in the box (sold in a 10 pack), but Ive never tried to launch them.
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  #13  
Old 04-08-2021, 04:31 PM
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Ohhhhh......I like the boost/rocket glider on the box cover
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  #14  
Old 04-08-2021, 08:05 PM
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Quote:
Originally Posted by barone
Ohhhhh......I like the boost/rocket glider on the box cover


Heh, great minds think alike
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Old 04-08-2021, 09:18 PM
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Default Not German, But Czech...

.. and in the same general area if you look at a map and squint.


Just curious if anyone here has actually flown any of the Adast motors back in the day? Bill Spadafora mounted one in the NAR test stand ( See this link:
< https://forums.rocketshoppe.com/sho...highlight=adast > ) and in the same thread, someone mentioned that these were known as the 'Widow Makers', but I seem to remember it was different motor that earned that dubious moniker, and that the Adast were pretty stable.
Can anyone confirm or deny?
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Old 04-08-2021, 09:33 PM
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The "Widow Makers" were 10 nt-sec motors in fiberglass casings. I have one in an ammo can buried under other ammo cans. But, I digress.
I believe the propellant was neither black powder nor composite. It was also unstable after time. I will dig it out if no one else had one easily available.

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  #17  
Old 04-08-2021, 09:51 PM
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Quote:
Originally Posted by Chas Russell
The "Widow Makers" were 10 nt-sec motors in fiberglass casings. I have one in an ammo can buried under other ammo cans. But, I digress.
I believe the propellant was neither black powder nor composite. It was also unstable after time. I will dig it out if no one else had one easily available.

Chas


Id love to see photos...
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Old 04-08-2021, 10:17 PM
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Tried to resize this. The Czech "Widow Maker" is the pale fiberglas motor on the top right.

Will try to get individual pics with nozzle. Propellant was sort of green.

Chas
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  #19  
Old 04-08-2021, 10:31 PM
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Trip Barber published some info on the Adast "Widow Maker" in the 1972 MIT Journal. Some test data and diagrams. The Adast 10-2.1- 5 equivalent to a C15-5 was composed of Potassium Picrate, Ammonium Perchlorate and Nitrocellulose. Quite a concoction! No wonder it was called "Widow Maker" Chas if I was you I'd take the Widow Maker and put it somewhere safe to you.
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  #20  
Old 04-08-2021, 10:50 PM
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Quote:
Originally Posted by Chas Russell
Tried to resize this. The Czech "Widow Maker" is the pale fiberglas motor on the top right.

Will try to get individual pics with nozzle. Propellant was sort of green.

Chas


Oh, very nice collection.
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