> > BTW the foam pieces are put in one at a time. They are just there to > hold up the carbon and keep the shape. They offer little structural > strength.
You'd be suprised how much strength that foam is giving you. It's a shear member between the layers of carbon, same concept as building a spar with caps and plywood shear webs. I don't remember either the formula or the rule of thumb that gives strength increase for thickness of a core material, but I could look it up. It's something like doubling the distance between the skins doubles the strength, or something like that. Some discussion with someone way smarter than me almost convinced me that the spruce would just be there to mount stuff to. -- Steve [email protected] N3343V- '75 C150M N205FT- KR1 #6170 He who seeks will find, and he who knocks will be let in.
