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  #11  
Old 04-12-2019, 11:49 PM
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Tau Zero Tau Zero is offline
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Quote:
Originally Posted by ghrocketman
Any relation to Zorin industries or the Drax Corp ?
Personally, I suspect Yoyodyne.
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Jay Goemmer
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NAR 86131


“Centuri fret buzz in an updated form.”
Bill “Wallyum” Eichelberger re: Estes Flutter-By
03 Sept 2014
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  #12  
Old 04-13-2019, 07:02 AM
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ghrocketman ghrocketman is offline
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I prefer POGOdyne over Yoyodyne.
They are a subsidiary of Powr-Prang Corp.
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  #13  
Old 04-13-2019, 09:09 AM
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tbzep Industries 1/4A3-0T staging before leaving the rod.


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  #14  
Old 04-13-2019, 09:52 AM
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Quote:
Originally Posted by tbzep
tbzep Industries 1/4A3-0T staging before leaving the rod.<snip pic>
My first ever 2-stage flight was around 1970, using a ½A6-0S, IIRC, and it was barely off the rod when it staged, or so it seemed, all those years ago

That said, having learned more about the physics of flight, it's not the altitude gained from the 1st stage burn so much as it's the momentum imparted by it. For example, on a TOW missile, the booster motor does little more than get the rocket out of the launch tube, but it gets it moving.
...
In the interest of staging, a ¼A booster definitely appeals to me, but I doubt it has much mass market potential


Doug


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  #15  
Old 04-13-2019, 11:18 AM
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Quote:
Originally Posted by Doug Sams
In the interest of staging, a ¼A booster definitely appeals to me, but I doubt it has much mass market potential

Let's just say I haven't been approached for mass production.

When we are dealing with something as small as a 1/4A booster, a tiny amount of weight will make a difference. It's been over 10 years, but to the best of my recollection, when I made a test flight with the Beta still completely naked, it staged above the rod. The small weight gain from primer and paint made a huge difference. It halved the altitude.
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