Fire damage to my bowsprit!
The lengthwise mast-cracks repair suggested by dpboatnut is exactly what I would advise with a minor addition. I would leave 1/32" of wood at the bottom of the kerf to keep the thickened epoxy in place and would limit the length of alternate kerf sections to 2 or 3 feet. Depending on how things looked at the time I might also hedge my bet by applying a bit of clamping pressure to the unkerfed sections just to keep everything in shape. If you have any cross-grain cracks, graving pieces will be required. They are easy to fit with epoxy, holler for details. Good Luck, George