RE: contest balsa
Lookie here:
[link=http://skyhooks.ca/basheet.htm#anchor407734]Balsa Sheet Weights, Size by Density Chart[/link]
Dave
PS Contest wood is in the 4-6 LB per cubic foot range. But it MUST still have a "Grain" or it is punky junk.
A 1/16 x 3 x 36 sheet is .0039 cubic feet of balsa!