Not to spoil the "corrector weight" party here, but the measurements supplied to me are in direct conflict with eachother. As a result I'm not convinced that the weight measurement is correct itself.


Now I like wood/timber but their ratios of "strength to density" and "stiffness to density" are lower then those of aluminium ; as such I don't see how a pure wooden mast can be superior in weight when having the same specs regarding strength and stiffness as an aluminium version.

Glass fibres share the same stiffness and density values with aluminium, but have a much higher yield stress limit. So by using that you can make a lighter and more flexible mast that won't break but I'm not sure that that is advantagious. I personally found glass masts to quickly resort to pumping on my landyachts. A combination of glass and wood will not be much differ in this respect unless significant amount of wood is used making the mast heavier.

The only real attractive option is mating timber with carbon fibre and I do expect some good results from any projects in that direction. Especially when thinwalled ply is used here.

Wouter