In 1936 Dravo Corporation built three towboats near Pittsburgh, Pennsylvania named OMAR, CHARLES T. CAMPBELL, and JOHN W. HUBBARD. Later names included CHARLES DORRANCE, ORCO and JOHN J. ROWE. Details include section, pilothouse, a standard coal hopper barge and lettering. Prototype drawings were used.

Hull size 171.5' x 34.6' x 7.2'. Model size at 1:96, 25 3/4" x 4 3/4" x 6 3/8". 8 sheets. Not available in German or in metric scales.