This one is a Barlow design, constructed using guidelines gleaned from a article on a similar mast built by the Gougeon Bros, using high quality materials and West System epoxies. Builder said it weighed 85 lbs, which I believe. Only 2 layers of fairly light E glass to sheath the outside. From what I can see, the quality of the construction looks good. The central web has separated from the mast sidewalls some near the break, but it's hard to determine whether it was there before the fracture, or a result of it. Maybe it's too light?

Dave