remery said..
I've got a sail the same as Fred's Michelob one in my shed somewhere. I think it was a 4.2 or thereabouts
I had almost the full set of those exact same NP RAF Wave. I am shocked to remember that the 4.7m version ran on a 5m mast!
And I think the 4.2m had a 135cm boom!
Massively high aspect ratios!
