mast size

[JoeT]

I just launched my Hartley 16. My plans call for aluminum mast and boom. Sizes: mast 20'6" x 3 1/2" x 2 3/4", weight 993 lbs per foot. Boom 11'2" x 2 1/2" x 1 3/4", weight 668 lbs per ft. I will make them from Sitka spruce using the birdsmouth method. Any help on size and thickness would be much appreciated.

[NormMessinger]

Check out these free programs. They may answer your question. http://www.carlsondesign.com/mast.zip

--Norm

[JoeT]

Originally posted by NormMessinger:
Check out these free programs. They may answer your question. http://www.carlsondesign.com/mast.zip

--NormThanks Norm. I tried to download those programs but I can't seem to make them work. I did find a fellow who is sending me plans for a wooden mast off his bluprints. Joe

[NormMessinger]

Bummer! But all's well that ends well, eh.

--Norm