Baldwin AS-416

The BLH AS-416 was a diesel-electric locomotive of the road switcher type rated at 1,625 hp (1,212 kW), that rode on three-axle trucks, having an A1A-A1A wheel arrangement.

AS-416
Norfolk Southern number 1616, an AS-416, at Chesapeake, VA, in 1968
Type and origin Power type Diesel-electric Builder Baldwin-Lima-Hamilton Corporation Model AS-416 Build date May 1951–December 1955 Total produced 25
Specifications Configuration: ​  • AAR A1A-A1A Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Length: ​  • Over couplers 58’ Prime mover 608A Aspiration Turbocharger Elliott Company H704 (125 hp) Generator Westinghouse YG42B Traction motors Westinghouse 370DL (4)
Performance figures Power output 1,625 hp (1,212 kW) (marketed as 1,600 hp)

Used in much the same manner as its four-axle counterpart, the AS-16, though the wheel arrangement spread out the axle load for operation on light rail such as are found on branch lines.

It was introduced in 1950 as a replacement of the DRS-6-4-1500 and remained in BLH's catalog until their cessation of locomotive manufacture in 1956.

Only 25 units were sold to four railroads — all of whom had bought the earlier model. The vast majority (17 of the 25 units) were purchased by the original Norfolk Southern Railway (1942–82), becoming a signature locomotive for the company.