Yeah, 3DL has been around for quite some time now. North has even created a rotating process where they can make smaller 3DL sails easier. The "old" and larger 3DL's are made essentially on a big "floor" where a computer lays the fibers out. The new smaller process does it on a rotating drum, takes up less space.

The Batchelors had some Norths on a F18 a couple of years ago. I don't remember if they were panneled of 3DL.