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  #1  
Old 03-22-2023, 04:31 PM
JohnnyRocket JohnnyRocket is offline
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Default WTB Estes Pershing Parts

WTB Estes Pesrshing vac form fins.
Johnny
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  #2  
Old 03-22-2023, 05:57 PM
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ghrocketman ghrocketman is offline
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Good luck finding original ones outside a complete kit.
I don't think they were ever offered as "parts".
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Old 03-22-2023, 06:35 PM
rocket.aero rocket.aero is offline
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Quote:
Originally Posted by JohnnyRocket
WTB Estes Pesrshing vac form fins.
Johnny


Good luck with that. When a derelict Pershing 1A kit arrived unannounced on my doorstep a few years ago, I took it as an opportunity to draw and cut some balsa and ply alternatives to the original vac form fin parts. You can read about that process here:

https://www.rocketryforum.com/threa...9/#post-1855087

A PDF of the file is attached to that page. If you have access to a laser cutter you can cut your own set from that file. The final result will be far better than the original vacform fins.

James

Last edited by rocket.aero : 03-22-2023 at 09:58 PM.
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  #4  
Old 03-22-2023, 08:49 PM
Shamous Shamous is offline
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I would skip the crummy vac u suck ones and order a set of 3D printed ones from Boyce.
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  #5  
Old 03-23-2023, 05:55 AM
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mojo1986 mojo1986 is offline
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I suggest getting the dimensions from someone here and doing 'built up' fins with a basswood frame and card stock skin.
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  #6  
Old 03-23-2023, 07:42 AM
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ghrocketman ghrocketman is offline
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+1 for ordering the Boyce fins.
The original Vac-form fins are really lousy.
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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL
, if you have to ask what is "NORMAL" , you probably aren't !

Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
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  #7  
Old 03-23-2023, 12:48 PM
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LeeR LeeR is offline
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I ordered 3D printed fins for the Estes Maxi Honest John last year, to replace the "sucky/crummy/flimsy vacuformed fins" from Boyce Aerospace.

Great quality, required minimal sanding, fit perfectly.
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  #8  
Old 03-23-2023, 01:24 PM
TigerHawk TigerHawk is offline
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Boyce is currently offering a 10% off sale coupon.
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