The J35 mast is 50’ (Kenyon 4270 extrusion) and was keel-stepped. The original was 41.25’ and deck-stepped. I am planning somewhere in between, but not exactly decided yet. Probably somewhere around 45’, giving a better aspect ratio than the original, more in line with modern rigs, but not over-powering the hull. Original was single shrouds, replacement is dual spreader setup.
The replacement, despite being taller, will weigh less than the original (somewhere in the realm of 200 lbs less was my consultant’s estimate). The original was .165" thickness and 6"x8". As my rigging consultant says, there are more options available for extrusions now than when these Cals were constructed originally.
I also got two profurl jib furlers with the replacement. Original was single jib. I am contemplating using both, by adding a bowsprit. If I don’t go with both furlers, I need to decide whether the jib will be 100% or fractional.
Another issue- original boom is 11’ (and I have it). The J35 boom I got with the mast is fancy, with internal halyards and already has the matching gooseneck fittings, but is 14’. They are similar in cross section. I don’t think I want that much foot to my main sail on this vessel (the J35 hull is 20" wider than the Call 34 and it’s 4’ more LWL despite only 2.25’ difference LOA.) I have to explore how feasible it is to cut down the boom as well.