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  #21  
Old 06-01-2019, 07:47 PM
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ghrocketman ghrocketman is offline
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You built your Enerjet Aerodart the same way I incorrectly built my first one.
The Enerjet version only has 3 fins, not four like the earlier Centuri version.
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  #22  
Old 06-11-2019, 07:49 PM
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It sure looked like 4 in the photos.
Lucky for me I have 2 more of those nose cones.
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  #23  
Old 06-14-2019, 10:07 PM
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Default Enerjet Dart

Another use for the 1340 booster - This is from the Sept. 72 Enerjet News.
Shouldn't be too difficult to throw together.
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  #24  
Old 06-15-2019, 01:52 AM
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K'Tesh K'Tesh is offline
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I wish that the folks at Estes would clue into this and bring some of these kits back. At first I was thrilled to see the Estes Phoenix Bird... But the complexity of the balsa fins defeated the simplicity of the original Centuri kit. Don't get me wrong, I like balsa fins, and can easily build those kits, but the design was IMHO originally a beginner's kind of rocket. The exciting design and simple build practically guaranteed that noobs could make a cool rocket, gain confidence, and want to stick with the hobby. The fact that guy's like us are still excited about them should reassure them that the kits have staying power.
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  #25  
Old 06-15-2019, 01:58 AM
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K'Tesh K'Tesh is offline
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Quote:
Originally Posted by SEL
Another use for the 1340 booster - This is from the Sept. 72 Enerjet News.
Shouldn't be too difficult to throw together.


Dang... Now I want to try that too
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  #26  
Old 06-15-2019, 05:37 AM
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Quote:
Originally Posted by K'Tesh
I wish that the folks at Estes would clue into this and bring some of these kits back. At first I was thrilled to see the Estes Phoenix Bird... But the complexity of the balsa fins defeated the simplicity of the original Centuri kit. Don't get me wrong, I like balsa fins, and can easily build those kits, but the design was IMHO originally a beginner's kind of rocket. The exciting design and simple build practically guaranteed that noobs could make a cool rocket, gain confidence, and want to stick with the hobby. The fact that guy's like us are still excited about them should reassure them that the kits have staying power.


And the REALLY silly thing about the Estes bring back of that particular kit is they had the fin can mold from the original kit and were activily using it in kits like the Eliminator. And so they bring back this classic kit -- one of the first kits to ever use the this plastic fin can -- and what do they do? The issue the kit with BALSA fins!! (??). Balsa cheaper? Yes I'm sure. But if you are going to bring back a classic kit and can do it faithfully and you ALREADY have the fin can, why not use it?

So yeah, could have been a good bring back in a lot of ways, but they missed it big time on that point.

Earl
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  #27  
Old 06-15-2019, 06:01 AM
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Quote:
Originally Posted by Earl
And the REALLY silly thing about the Estes bring back of that particular kit is they had the fin can mold from the original kit and were activily using it in kits like the Eliminator. And so they bring back this classic kit -- one of the first kits to ever use the this plastic fin can -- and what do they do? The issue the kit with BALSA fins!! (??). Balsa cheaper? Yes I'm sure. But if you are going to bring back a classic kit and can do it faithfully and you ALREADY have the fin can, why not use it?

So yeah, could have been a good bring back in a lot of ways, but they missed it big time on that point.

Earl


Part of the problem is that Estes is phasing (or has phased) out the BT-56. The logic is that the BT-55 is so close to it that it won't be missed. Personally I think that's a little shortsighted. There is a lot of history behind that sized tube and I think it should never be eliminated.

Likewise the egg capsule for the BT-56 is gone. It's my understanding that the mold for it is close to being worn out, or has worn out completely. Which is a shame because I rather like that funny little nose cone. However, I do prefer it in the HIPS plastic instead of the Polyethylene plastic, due in full to the ability for paint to stick to it.
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Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."


Launching is Optional... Landing? That Depends on Trees.
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  #28  
Old 06-15-2019, 07:47 AM
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Jerry Irvine Jerry Irvine is offline
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Quote:
Originally Posted by SEL
Another use for the 1340 booster - This is from the Sept. 72 Enerjet News.
Shouldn't be too difficult to throw together.
This was before there was LMR. They were struggling to find a way to stay under the 453g liftoff mass limit and still put any useful payload on or in a rocket at all.

http://v-serv.com/crp/pubs/US%20ROC...RT%20THEORY.pdf
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  #29  
Old 06-15-2019, 10:00 AM
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Quote:
Originally Posted by SEL
Another use for the 1340 booster - This is from the Sept. 72 Enerjet News.
Shouldn't be too difficult to throw together.

I saw that fly at the Southwest Model Rocket Conference in New Mexico in 1973...Gary Schwede was a very clever individual--that model had a modified Estes Transroc with a nose tip thermistor probe.

The upper stage ignited via a timer that started when the umbilical plug pulled out at launch--hearing the upper stage EnerJet motor light up was awesome!

I also *did* see Larry Brown from Centuri fly the X-24 bug on top of a Saturn V at one of the SWMRC, unfortunately, I did not take pictures that year...
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  #30  
Old 06-15-2019, 10:04 AM
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Gary's original EnerJet dart model did not use the plastic fin can...this is from SWMRC 72. Looks like this was the inspiration for the model in EnerJet news drawing
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