U156, built by the Atlas Werke in Bremen, was originally one of seven Deutschland class Uboats designed to carry cargo between the United States and Germany in 1916 Five of the submarine freighters were converted into longrange cruiser Uboats (Ukreuzers) equipped with two 15 cm (59 in) SK L/45 deck guns, including U156Known as the merchant submarine Deutschland from launch;U155 filmed on the day the wreck was discovered and first dived in 01
U Boat Ships Plans