Originally Posted by islandplanet
I'd avoid Hydranet crosscut as it doesn't have enough Spectra to make a difference and testing shows it's not appreciably better than a premium Dacron like Marblehead/Fiber 104.
Radial Hydranet is a great material but spendy. Really depends on the application as for applicability. Radial construction translates to a lot of material going in the dumpster and when you're spending $50-60 a yard, it adds up quickly. There are some excellent load path products worthy of consideration that are far more efficient to build sails with.
G'Day Island Planet,
Thanks for all the comments re HydraNet. We are likely to need a new main
within the year, and I'm interested in your comments re the high cost of
Hydranet Radial, and there being useful alternatives. I would be interested in
your thoughts on an appropriate material for us.
The boat: Jon Sayer design, LOA
46', LWL 44'8" light boat disp 9.5 tonnes,
cruising disp approx 11.5-12 tonnes, beam 13'10". We are full time cruisers,
averaging about 6K miles/year, primarily in mid to tropical latitudes,
occasional dips into the 40's. Boat spends a lot of time with one or more
in the main (not as young as we were, and don't drive the boat as hard
as we used to!).
mains'l: radial construction, "Wide Radial Dacron" material, 9 oz in
body, two plies of 6.8 oz in outer panels
. Top three battens are full length,
lower two are longish leech battens. Area about 60 square metres. Sail has
42,000 miles usage over 9 years, and has developed some shape
discontinuities where the plied and single
layers come together, but otherwise
isn't so bad considering its age. (I guess one could say the same about Ann
and I !!) I have attached two photos to illustrate.
Considering all the above, in your opinion what materials would offer the
best combination of cost, shape retention and longevity?