RDG Co. Baldwin DS4-4-1000, Class OE-12, #702

#702 at Temple, PA, September 2002. (photo courtesy Mike Shirk)

Background & History

#702 is an excellent example of the many Baldwin four-axle switchers used by the Reading. The Reading owned 30 examples of this particular model. Built in 1948, this engine is rated a 1000hp, which is produced by a turbocharged six-cylinder engine. It remains in orange paint applied by the Patapsco & Back River Railroad, a subsidiary of Bethlehem Steel at Sparrows Point (Baltimore, MD), where it received some modifications to the hood. It is currently stored out-of-service, but it is in fair to good mechanical condition.

Archival Photos

#702 taken at Philadelphia, PA, October 1958. (photo courtesy David Nyce, Gary Stuebben Collection)

Baldwin DS-4-4-1000 Switcher Specifications (as-built):
Builder: Baldwin Locomotive Works, Philadelphia, PA Engine model: 606SC
Date built: 1950 Type: 4-stroke diesel
Builder’s #: ? Aspiration: Turbocharger
Horsepower: 750 Cylinders: 6
Top speed: 60 m.p.h. Bore x Stroke: 12.75" x 15.5"
Weight: 220,000? lbs. Displacement: ? c.i.
Tractive effort: 55,000? lbs. Idle Speed: ? r.p.m.
Length: 46' 0" Max. speed: 625 r.p.m.
Fuel: 650 gallons Transmission: DC generator, DC traction motors
Lube oil: 170 gallons Brake system: 6-DS
Water: 250 gallons Braking: Air
  (last updated: 4/03)