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  #41  
Old 11-06-2007, 08:36 PM
Initiator001 Initiator001 is offline
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Quote:
Originally Posted by dwmzmm
I also enjoyed the article on the Enerjets; I may want to build a clone of the Nike Ram
myself.....


Parts (including laser-cut fins) are available through Semroc.

See Phred for the decals.

Bob
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  #42  
Old 07-25-2022, 08:11 PM
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Earl Earl is offline
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I realize this is a v.e.r.y. old thread, but wondering if anyone has this original Launch article that they could scan and post here. Bob? Anyone else??

I picked up a couple of Launch magazine issues when it was still in production, but never did subscribe and never had this issue.

Thanks in advance to anyone who can help. Or, will buy an original issue if someone has this issue to sell.

Earl
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  #43  
Old 07-26-2022, 04:48 PM
Don Altschwager Don Altschwager is offline
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Here is a PDF of the Article.
Attached Files
File Type: pdf Enerjet Story Reduced size.pdf (1.60 MB, 162 views)
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  #44  
Old 07-26-2022, 06:40 PM
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Earl Earl is offline
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Ahh! Thanks Don, much appreciated!

Earl
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  #45  
Old 07-26-2022, 08:42 PM
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ghrocketman ghrocketman is offline
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+1 to what Earl just said above !
Thanks, Don !
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  #46  
Old 08-11-2022, 08:49 AM
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blackshire blackshire is offline
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Quote:
Originally Posted by ghrocketman
+1 to what Earl just said above !
Thanks, Don !
*Stamps hooves in enthusiastic assent* Wow--I never had an Enerjet kit; if Semroc offered "Retro-Repro" kits of some of them, I'd buy some (including as gifts for others)! Between Aerotech, Quest, and Estes, getting motors of the needed impulse ratings--and of the desired propellant types and specific propellant chemistries (flame & smoke characteristics)--would be no problem.
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  #47  
Old 08-11-2022, 07:11 PM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by blackshire
*Stamps hooves in enthusiastic assent* Wow--I never had an Enerjet kit; if Semroc offered "Retro-Repro" kits of some of them, I'd buy some (including as gifts for others)! Between Aerotech, Quest, and Estes, getting motors of the needed impulse ratings--and of the desired propellant types and specific propellant chemistries (flame & smoke characteristics)--would be no problem.


ENERJET propellant ( aka "APP60" ) . . . small Orange flame . . . no smoke . . . strong Chlorine smell . . . Polyurethane resin bunder . . .

QUOTE :

"APP60 was 80% AP, 20% Flexane 60. Polyether polyurethanes like Flexane have some oxygen in the binder so it didn't take a very high propellant "solids loading" to produce a smokeless exhaust. HTPB propellants have a higher amount of carbon in the polymer so a higher solids loading is required to simulate the same effect...in the range of 84-86%."

END QUOTE :

https://forums.rocketshoppe.com/sho...25&postcount=13

Dave F.
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