ALCo DL-109 locomotives began arriving on the New Haven Railroad in 1941 and saw heavy use during World War 2 pulling main line passenger trains during the day and freight trains at night. New Haven DER-1 (Diesel-Electric-Road) #0719 is an old MTH model with PS2 and a BCR. I have always enjoyed listening to its ALCo engine startup sounds and its rough idle which can be heard on this video as the engine crosses the trestle and also as it enters the tunnel at about 14 miles-per-hour.
MELGAR