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The EMD SD90MAC is a model of 6,000 hp (4,470 kW) [1] C-C diesel-electric locomotive produced by General Motors Electro-Motive Division (EMD). It is, with the SD80MAC, one of the largest single-engined locomotives produced by EMD and among the most powerful diesel-electric locomotives, surpassed only by the dual-engined DDA40X.
Originally, GE pattern GEX3341 [71] with Alco 6-251B prime mover. Purchased new. Converted to CLEAR 140 by Sygnet Rail Technologies with Cummins QSK45L prime mover in 2010-2011. Offered for sale in 2022. 98 General Electric Co. 1,450 hp (1,080 kW) C-C: May 1966 35790 Originally, GE pattern GEX3341 [71] with Alco 6-251B prime mover. Purchased new.
Type Road number Build year Total produced AAR wheel arrangement Prime mover Power output Image EMC 1800 hp B-B: ATSF 1: 1935 1 B-B+B-B: Dual Winton 12-201-A: 1,800 hp (1,342 kW)
Models with "A" suffix are equipped with 12-cylinder prime mover in place of the standard 16-cylinder version, with the same power output. ... Steam turbine: 2,500 hp ...
The prime mover in F-units was a sixteen-cylinder EMD 567 series mechanically aspirated two-stroke diesel engine, progressing from model 16-567 through 16-567D. Structurally, the locomotive was a carbody unit , with the body as the main load-bearing structure, designed like a bridge truss and covered with cosmetic panels.
The prime mover can also be a gas turbine instead of a diesel engine. In either case, the generator, traction motors and interconnecting apparatus are considered to be the power transmission system and not part of the prime mover. A wired-electric or battery-electric locomotive has no on-board prime mover, instead relying on an external power ...
The SD30C-ECO is an EMD SD40-2 re-powered with an EMD 12-710 prime mover. The locomotive is rated at 3,000 horsepower (2,200 kW) and meets EPA Tier 0 emissions regulations. [7] A similar rebuild, the SD40E3 was carried out by CSX in early 2017. [8]
The Baldwin DR-12-8-1500/2 (known informally as the Centipede) was the Baldwin Locomotive Works' first serious attempt at a production road diesel locomotive. The Baldwin type designation was ' DR-12-8-1500/2 , ' meaning D iesel R oad locomotive, with 12 axles ( 8 of which were driven), and two engines of 1,500 horsepower (1,100 kW) each.