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  #81  
Old 08-25-2021, 10:42 AM
TigerHawk TigerHawk is offline
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The stuff Ive read on the Paulownia Wood should be a great replacement of balsa wood. Higher strength to weight ratio would definitely give it the upper hand in competition and/or normal launches/recovery.
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  #82  
Old 08-25-2021, 11:19 AM
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sandman sandman is offline
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Quote:
Originally Posted by TigerHawk
The stuff Ive read on the Paulownia Wood should be a great replacement of balsa wood. Higher strength to weight ratio would definitely give it the upper hand in competition and/or normal launches/recovery.



Unfortunately, Paulowania wood is expensive at more than $15 a board foot!

A 3 x 3 x 36 balsa is $32.00

A 3 x3 x36 paulowania is $33.00

Yes, I have looked into it.
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  #83  
Old 08-25-2021, 02:18 PM
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Without being lower in price, that wood seems to be an almost useless replacement.
Sounds like a military blockade of Balsa from Ecuador to China is in order.
I like my Balsa the same way as my Gasoline, a CHEAP plentiful supply and don't care how that is achieved, by hook or by crook.
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  #84  
Old 08-25-2021, 02:29 PM
TigerHawk TigerHawk is offline
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Cheap is the key word, its non existent these days
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  #85  
Old 08-25-2021, 10:40 PM
TigerHawk TigerHawk is offline
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Quote:
Originally Posted by PaulK
Sandman made a basswood 2.6" diameter secant-ogive for my L1 Cherokee-D upscale. I've been pondering how to get an accurate 4" diameter, perhaps Python when I get to that project.


https://www.erockets.biz/semroc-bal...-sem-bnc-80hac/

https://www.erockets.biz/semroc-bal...e-sem-bnc-80ac/
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  #86  
Old 08-26-2021, 05:56 AM
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Yes, I'm aware of those. They're balsa. Too soft for HPR.
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  #87  
Old 08-26-2021, 09:19 AM
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NOT too soft for HPR.
Coat with fibreglass and resin. Thaty'll doo.
Issue solved unless for extended supersonic flight.
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When in doubt, WHACK the GAS and DITCH the brake !!!

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  #88  
Old 08-26-2021, 05:56 PM
TigerHawk TigerHawk is offline
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eRockets down to (1) in stock currently on the Semroc Pro Cherokee.
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