W = CAPSTAN/WILDCAT
G = CHAIN GYPSY
S = STARBOARD
P = PORT
1501 "WGS" "WGP" includes 1 chain gypsy and 1 rope wildcat.
1501 "WGWS" WGWP" includes 1 chain gypsy and 2 rope wildcats.
1501 "WGGS" WGGP" includes 2 chain gypsy's and 1 rope wildcat.
1501 "DWG" includes chain gypsy rope wildcat, port & starboard.