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  #11  
Old 12-01-2021, 06:02 PM
Bob Austin Bob Austin is offline
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If you like 3D printing you can download the files to print the wing/engine unit.

https://www.thingiverse.com/thing:1660773
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  #12  
Old 12-01-2021, 08:04 PM
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Tau Zero Tau Zero is offline
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Quote:
Originally Posted by dlazarus6660
I cloned this rocket years ago when I became a full time BAR back in 2008.
I upscaled to a BT-55 tube, the wings could not take the weight.
My conclusion was a special plastic coupler that would allow you to bind the wings to the BT tube.
Looking at the design now, I'd also recommend "silkspanning" the root edge/body tube joint, as is suggested for booster stages that tumble, etc. That would help beef things up, as well.

I looked for a line drawing example in the Rocketry Handbook as well as the NAR Member Guidebook, to no avail. Instead, I substitute my attempt on my Estes Der Red Max as a humble example. Hope this helps!

Cheers,
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Name:  Silkspan root edge model rocket fin Estes Der Red Max 050X.jpg
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  #13  
Old 12-02-2021, 08:57 PM
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barone barone is offline
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In the old days, they would use peel and stick address labels to beef up the fin/body tube joint.
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  #14  
Old 12-03-2021, 05:06 PM
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rosko_racer rosko_racer is offline
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Default Pegasus 0806 on "The Other Forum"...

I started a small thread on the other forum "a few years ago" on the Estes Pegasus #0806 where I posted a 1:1 Rocsim file as well as BT-55 and BT-60 upscale Rocsim files. Reposted here in case you (or anyone else) would like to experiment with them.

- Raul
Attached Files
File Type: rkt OOP-Estes-Pegasus-0806.rkt (103.2 KB, 6 views)
File Type: rkt OOP-Estes Pegasus 0806-Upscale BT-55.rkt (99.3 KB, 6 views)
File Type: rkt OOP-Estes Pegasus-0806-Upscale BT-60.rkt (99.5 KB, 5 views)
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  #15  
Old 12-03-2021, 06:38 PM
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jeffyjeep jeffyjeep is offline
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Quote:
Originally Posted by Tau Zero
Looking at the design now, I'd also recommend "silkspanning" the root edge/body tube joint, as is suggested for booster stages that tumble, etc. That would help beef things up, as well.

I looked for a line drawing example in the Rocketry Handbook as well as the NAR Member Guidebook, to no avail. Instead, I substitute my attempt on my Estes Der Red Max as a humble example. Hope this helps!

Cheers,


Silkspan? Can you still get Silkspan? The last time I used Silkspan was over 30 years ago to cover a Comet British S.E.5.
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  #16  
Old 12-03-2021, 06:43 PM
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ghrocketman ghrocketman is offline
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My LHS still carries Silkspan, Silk, Tissue, and Dope.
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  #17  
Old 12-03-2021, 10:58 PM
BARGeezer BARGeezer is offline
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Quote:
Originally Posted by barone
In the old days, they would use peel and stick address labels to beef up the fin/body tube joint.

In the days when dinosaurs roamed the earth we used gauze and white glue.
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