As measured: 40' 2.25" (12.251m +/- 2mm)
As specified in the Class Rules: 40' 2.8"
Original mast is from Hall Spars. Mast Section details are on their own page.
Spreaders are 2.25 inches wide x 0.625 inches high.
Uppers are 22 inches long. Lowers are 335 inches long.
Use the "wide" spreader tip boots (2.25" x 5/8" thick).
From J-Boats:
Diameter Length Top Fitting Bottom Fitting
Forestay 7/32" 0.219 31' 2" Eye Toggle
Upper Shroud 7/32" 0.219 30' 1 7/8" 3/16" T Toggle
Mid Shroud 5/32" 0.156 21' 2 7/8" Ball Toggle
Lower Shroud 7/32" 0.219 11' 11 3/8" Ball Toggle
Upper Backstay 5/32" 0.156 31' 6 3/8"
Lower Backstay 5/32" 0.156 8' 10 3/8"
(Details courtesy of Brant Binns, Whitefeather)