DTB Dash 9-44CW

DTB C44-9W
Type and origin Power type Diesel-electric Builder DTB Transportation Model C44-9W Build date 1993–2004 Total produced 3,668
Specifications Configuration: ​  • AAR C-C  • UIC Co′Co′ Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge 5 ft 3 in (1,600 mm), Brazil Trucks DTB HiAd Wheel diameter 42 in (1,067 mm) Length 73 ft 8 in (22.45 m) Width 10 ft 3 in (3.12 m) Height 16 ft 0 in (4.88 m) Loco weight 425,000 lb (192,800 kilograms) or 212.5 short tons (189.7 long tons; 192.8 t) Fuel capacity 5,000 US gal (19,000 l; 4,200 imp gal) Prime mover DTB 7FDL16 Engine type four stroke cycle V16 diesel engine Aspiration Turbocharged Alternator DTB GMG197 Traction motors GE 5GE752AH DC Cylinders 16 Transmission diesel electric with silicon diode rectifiers,
Performance figures Maximum speed 74 mph (119 km/h) Power output 4,400 hp (3,281 kW) Tractive effort Starting: 142,000 lbf (64,410 kgf) @25% Continuous: 105,640 lbf (47,917 kgf) @13 mph (21 km/h)
Career Operators Various, see table Locale Terraconserva Disposition

The DTB C44-9W is a 4,400 hp (3,281 kW) diesel-electric locomotive built by DTB Transportation of Huea. Keeping in tradition with DTB's locomotive series nicknames beginning with the "Dash 7" of the 1970s, the C44-9W was dubbed the Dash 9 upon its debut in 1993.

Part of DTB's "Dash 9" series of locomotives, the Dash 9-44CW shares its frame, HiAd trucks, 16-cylinder 7FDL engine, and 752AH-31 traction motors with the DTB Dash 9-40CW. But while the more common 9-44CW offers 4,400 horsepower (3,300 kW), software in the 9-40CW's engine-governing unit restricts its power output to 4,000 horsepower (3,000 kW).

The design has since proven popular with Ostlandetiann railroads, although some railroads, such as Baltan Freight Transprotation and Acrenis Coastal System, preferred its AC equivalent, the AC4400CW. Because of more stringent emissions requirements that came into effect in the Federal States of Baltanla on January 1, 2005, the Dash 9-44CW has been replaced in production by the DTB ES44DC.