Hi
I'm hoping someone can help identify this mast. I was given this recently but I'd like to know a little more about it.
It has a bend to it which may be from storage, but could be asymmetrical. The wall thickness seems too thin for a fiberglass mast. But most interesting is what appears to be a strip of carbon down both sides.
Any information would be great, thanks in advance
This looks like a rotho Duo from the eighties. Made in West-Germany. The Duo was designed as a mast with two built in curves/stiffnesses. Of course it didn't work. Delamination of the carbon strips were unsurprisingly also an issue.
My father is still using this mast for growing tomatoes.
Thanks Fred,
Any idea what it is made from? a little google searching suggests epoxy, and i assume glass, (maybe kevlar?)
Not much info out there for rotho masts!
Thanks
It's glass/epoxy. The company still exists but they were clever enough to give up windsurfing business many years ago.
rotho was most renowned for their green heavy duty mast, the rotho wave.
The german Windsurfing Journal has a vintage column. Go to page 26 and watch a small pic of rothos quality control check with two really hot cuties 
The whole procedure was video taped for warranty purposes:
issuu.com:443/terraoceanisverlag/docs/windsurfing-journal-ausgabe-04
(green one)
somewhere around,
Thanks for that.
I was hoping to use it for a landyacht, but it might not be any good. Although i think i will just give it a shot anyway! I've Currently got an old kevlar mast that i have re-enforced, (after breaking it!) it works OK, but not great. I suspected this mast might be one as well with some carbon stiffening.
Ideally i am after an old carbon mast, but they are a bit hard to come by in my price range
Thanks again
