AC Spinnakers fail because they are BIG and made as close to the envelope as they can get away with.

They are built from very similar fabric (usually Contender) to what is used in beach cat spinnakers.

Polyester spin fabric was popular a few years back and wouldn't stretch under load, it would just explode. Coating technology has gotten better and most high quality nylon is urathane coated to keep the bias stretch down.


Chip Buck
www.whirlwindsails.com