The Baldwin Locomotive Works RF-16 or Shark Nose Diesel is popular in the hobby world, however
the prototype did not enjoy the same attention.
Wikipedia tells us the RF-16 was a 1,600 horsepower diesel built
between 1950 and 1953 with 160 examples produced. Of the 160 made, 109 were A-units and 51 were B-units. Original owners
included only three railroads: Baltimore & Ohio; New York Central; and Pennsylvania. All original owners purchased both
A- and B-units RF-16 models. Monongahela purchased RF-16s from the New York Central in '67. The Delaware & Hudson picked
two of the ex-NYC units from Monongahela in 1974 and operated them with a fair amount of notoriety until 1978.