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The BLH RT-624 was a twin-engined diesel-electric locomotive, built by Baldwin-Lima-Hamilton Corporation between August 1951 and February 1954.

RT-624
Type and origin Power type Diesel-electric Builder Baldwin-Lima-Hamilton Corporation Model RT-624 Build date August 1951 to February 1954 Total produced 24
Specifications Configuration: ​  • AAR C-C  • UIC Co′Co′ Gauge 4 ft 8+1⁄2 in (1,435 mm) Trucks GSC 13-ft rigid bolster Length: ​  • Over couplers 74’ Loco weight 354,000–375,000 lb (161,000–170,000 kg) Power supply 75 V Prime mover 606A × 2 Engine RPM:  • Maximum RPM 625 Engine type Four-stroke diesel Aspiration Turbocharger Elliott Company H503 (215 hp) Generator Westinghouse YG42B Traction motors Westinghouse 370DEZ (6) Cylinders 6 × 2
Performance figures Power output 2,400 hp (1,800 kW) Tractive effort: ​  • Starting 106,200 lbf (472.40 kN)  • Continuous 72,900 lbf (324.28 kN)
Career Operators Pennsylvania Railroad, Minneapolis, Northfield and Southern, Penn Central Class PRR- BS24m Nicknames Center Cab Disposition All scrapped

The RT-624, an improved version of the former Baldwin DT-6-6-2000, was a center-cab transfer locomotive. Twenty-four locomotives were built using 6-cylinder turbocharged 606A prime movers during 1951–1954. Penn Central operated ex-PRR #8955, and was retired in October 1969, and scrapped in July 1970.

No examples of the RT-624 are known to survive.

Original buyers

Railroad	Quantity	Road numbers	Notes
Pennsylvania Railroad	23	8113, 8724–8731, 8952–8965
Minneapolis, Northfield and Southern Railway	1	25
Total	24

References

• Kirkland, John F. (1994). The Diesel Builders (Volume 3, Baldwin Locomotive Works). Interurban Press. ISBN 0-916374-93-9.
• Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Kalmbach Publishing Co. ISBN 0-89024-026-4.
• Dolzall, Gary W. & Dolzall, Stephen F. (1984). Diesels From Eddystone: The Story of Baldwin Diesel Locomotives. Kalmbach Publishing Co. ISBN 0-89024-052-3.

See also

• Lima LT-2500, a similar center-cab style transfer unit.

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