Baldwin DR-4-4-1500

The Baldwin DR-4-4-1500 was a 1,500 horsepower cab unit diesel locomotive built for freight service by Baldwin Locomotive Works between November 1947 and June 1950. It was made in two body styles that railfans nicknamed Babyface and Sharknose, although Baldwin used one model number for both. Twenty-two Babyface cab A units were built with eleven cabless booster B units, followed by 36 Sharknose A units and 36 B units, for 105 locomotives in all. It was the freight cab unit that the later RF-16 refined into a debugged version with a new prime mover.