New York Central Railroad Tugboat 13 is a railroad tugboat built in 1887 in Camden, New Jersey by John H. Dialogue and Son. The tugboat was built for the New York Central Railroad to push barges, called car floats, carrying railroad cars and other freight across the waterways of New York Harbor. It originally had a steam engine of 232 horsepower (173 kW), replaced with two General Motors 6-110 diesel engines in the 1950s. The engines sit back-to-back and drive a central gearbox, which turns the single propeller. The hull is riveted and made of wrought iron.