OK CORRECTIONs HERE...
Correction1. ..The sail is a 600S one side taffetta and one side mylar...
It appears that we have to be an engineer in regard to 3DL as the customer, combined with the sail rep, has a half dozen choices to stray away from the "listed" sails like a Marathon. Apparently, I was looking for an lighter weight sail than the Marathon so I went along with just one side taffeta ... the side that is going is the Mylar film side.
Correction 2 ... the sail cover is not Sunbrella but dacron. The
problem remains that as the 3DL shrinks, the dacron stretches.
Correction 3 ... North measures sail life in hours not years ... but then defining hours is related to wind strength and what kind of tacking is done
There is no dacron in the Marathon 3DL unless you stitch on a dacron UV cover.
my basic conclusions remain intact.
1. don't reef a 3DL on a furling
2. don't use a dacron or sunbrella stitched on uv cover.
Humbly submitted
vic
