We have made great progress on removing the original ballast keel and have discovered some interesting data points regarding Martha’s build and later modifications.
The plank keel timber is in very good shape and is in it self a remarkable piece of wood.
Her keel bolts were in very good shape and are 1 1/4″ diameter, not the 1″ diameter indicated in the plan.
The original iron keel appears to be about 2000lbs lighter than the plan calls for as well.