Thread: Building Light
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Old Jan 15, 2002, 08:25 AM
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in persuit of low wing loading
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Boston, Mass
Joined May 2001
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I recently got an order of contest-grade balsa from Superior Balsa. I measured thickness and calculated balsa density. Here is what I found. The first value is the size (thickness), followed by the number of sheets in my sample, the average density, and the minium density.

Size, #shts, Avg, Min
1/32, 7, 6.0, 5.3
1/16, 7, 6.1, 4.9
3/32, 3, 4.9, 4.8
1/8, 3, 6.3, 6.2

Overall, I'm happier with the densities I received when paying for contest grade brom Superior Balsa.

I had previously ordered contest grade from National Balsa, but only a few sheets were in the 6 pound density range. I have also heard (from Ralph Bradley) that he has good results from Lone Star Balsa.
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Last edited by Gordon Johnson; Jan 15, 2002 at 08:44 AM.
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