Hmm, why would you fill the mast with foam? Over time, will not the foam soak up humidity making it heaver? All the litterature I have seen says that foam and wood is a very bad combination, both weight wise and structurally.

If you can build the mast in ply/glass, and come in under the weight of the same section/length in alu, I'll fall off my chair with my jaw dropping to my knees <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
I truly wish you all luck with that goal and really hope you succeed. Would be fantastic.

There are too few female builders! Being stuck with Frode and Omar in the garage several times a week have made this very clear to me <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />


Please keep us updated on the project. I am very interested in the results!