Date: 12/31/1969 Views: 4437
Date: 02/13/2005 Views: 5307
Date: 12/31/1969 Views: 5819
Date: 08/23/2023 Views: 705789
12 more plies, (3 at a time), were laid up on the top side. That's an 18 ply layup! 1 BID is about the same thickness as 3 plies of thin model aeroplane cloth. Y10-09-30