Calker (456) Enlisted Personnel

Close seams in the planking in ship's bull or caisson.
Sets calking in seams, using a calking iron and mallet. Inserts oakum into seam and hammers it in with mallet. Fills seam with hot pitch or uses putty to cover the calking. Removes old calking from seams, using reaming iron and mallet.
Must know the construction of ship's hulls and compartments.

Suitable Substitutions