DRG Class E 44

Specifications
Specifications
Configuration:;
• UIC	Bo′Bo′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,250 mm (4 ft 1+1⁄4 in)
Wheelbase	9,800 mm (32 ft 1+7⁄8 in),; 9,150 or 9,700 mm (30 ft 1⁄4 in or 31 ft 9+7⁄8 in) (E 44.5)
• Bogie	3,500 mm (11 ft 5+3⁄4 in),; 3,300 or 3,400 mm (10 ft 9+7⁄8 in or 11 ft 1+7⁄8 in) (E 44.5)
Pivot centres	6,300 mm (20 ft 8 in),; 5,640 mm (18 ft 6 in) (E 44.5)
Length:;
• Over buffers	15,290 mm (50 ft 2 in),; 13,150 or 13,520 mm (43 ft 1+3⁄4 in or 44 ft 4+1⁄4 in) (E 44.5)
Width	2,960 mm (9 ft 8+1⁄2 in),; 3,190 mm (10 ft 5+5⁄8 in) (E 44.5)
Height	3,950 mm (12 ft 11+1⁄2 in),; 3,950 or 4,260 mm (12 ft 11+1⁄2 in or 13 ft 11+3⁄4 in) (E 44.5)
Axle load	19.5 t (19.2 long tons; 21.5 short tons),; 19.8 or 19.9 t (19.5 or 19.6 long tons; 21.8 or 21.9 short tons) (E 44.5)
Service weight	78.0 t (76.8 long tons; 86.0 short tons),; 79.2 or 79.6 t (77.9 or 78.3 long tons; 87.3 or 87.7 short tons) (E 44.5)
Electric system/s	15 kV 16+2⁄3 Hz AC Catenary
Current pickup	Pantograph
Traction motors	nose-suspended, 4 off
Head end power	800/1000 V 16+2⁄3 Hz AC
Running steps	15
Running step switch	manual cam switch and resistors
MU working	push-pull (E 44B, E 44G)
Loco brake	Air (K-GP mZ),; rheostatic (E 44W)
Train brakes	Air

Type and origin
Type and origin
Power type	Electric
Builder	Henschel & Son, Krauss-Maffei, Lokomotivfabrik Floridsdorf, SSW (E 44.0),; AEG, BMAG (E 44.5)
Build date	1930–1945 (E 44.0 originals),; 1950–1965 (E 44.0 replicas and rebuilds),; 1931–1935 (E 44.5)
Total produced	176 (E 44.0 originals),; 13 (E 44.0 replicas and rebuilds),; 9 (E 44.5)

DRG Class E 44
DB Class 144/145
DR Class 244
DRG Class E 44; DB Class 144/145; DR Class 244
	244 103 at Weimar railway museum, 2015
Power type
Type and origin
Power type	Electric
Builder	Henschel & Son, Krauss-Maffei, Lokomotivfabrik Floridsdorf, SSW (E 44.0),; AEG, BMAG (E 44.5)
Build date	1930–1945 (E 44.0 originals),; 1950–1965 (E 44.0 replicas and rebuilds),; 1931–1935 (E 44.5)
Total produced	176 (E 44.0 originals),; 13 (E 44.0 replicas and rebuilds),; 9 (E 44.5)
Configuration:;
Specifications
Configuration:;
• UIC	Bo′Bo′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,250 mm (4 ft 1+1⁄4 in)
Wheelbase	9,800 mm (32 ft 1+7⁄8 in),; 9,150 or 9,700 mm (30 ft 1⁄4 in or 31 ft 9+7⁄8 in) (E 44.5)
• Bogie	3,500 mm (11 ft 5+3⁄4 in),; 3,300 or 3,400 mm (10 ft 9+7⁄8 in or 11 ft 1+7⁄8 in) (E 44.5)
Pivot centres	6,300 mm (20 ft 8 in),; 5,640 mm (18 ft 6 in) (E 44.5)
Length:;
• Over buffers	15,290 mm (50 ft 2 in),; 13,150 or 13,520 mm (43 ft 1+3⁄4 in or 44 ft 4+1⁄4 in) (E 44.5)
Width	2,960 mm (9 ft 8+1⁄2 in),; 3,190 mm (10 ft 5+5⁄8 in) (E 44.5)
Height	3,950 mm (12 ft 11+1⁄2 in),; 3,950 or 4,260 mm (12 ft 11+1⁄2 in or 13 ft 11+3⁄4 in) (E 44.5)
Axle load	19.5 t (19.2 long tons; 21.5 short tons),; 19.8 or 19.9 t (19.5 or 19.6 long tons; 21.8 or 21.9 short tons) (E 44.5)
Service weight	78.0 t (76.8 long tons; 86.0 short tons),; 79.2 or 79.6 t (77.9 or 78.3 long tons; 87.3 or 87.7 short tons) (E 44.5)
Electric system/s	15 kV 16+2⁄3 Hz AC Catenary
Current pickup	Pantograph
Traction motors	nose-suspended, 4 off
Head end power	800/1000 V 16+2⁄3 Hz AC
Running steps	15
Running step switch	manual cam switch and resistors
MU working	push-pull (E 44B, E 44G)
Loco brake	Air (K-GP mZ),; rheostatic (E 44W)
Train brakes	Air
Maximum speed
Performance figures
Maximum speed	90 km/h (56 mph),; 80 or 90 km/h (50 or 56 mph) (E 44.5)
Power output:;
• 1 hour	2,200 kW (2,950 hp),; 1,600 kW (2,150 hp) (E 44 501–505)
• Continuous	1,860 kW (2,490 hp)
Tractive effort:;
• Starting	196 kN (44,000 lbf)
Numbers
Career
Numbers	E 44 001–175, 178 (E 44.0 originals); E 44 176, 177, 179–189 ( E 44.0 replicas and rebuilds); E 44 501–509 (E 44.5)
Retired	DB: 1983/1984; DR: 1991
Disposition	21 preserved, remainder scrapped

The class E 44 is a type of electric mixed-traffic locomotives built for Deutsche Reichsbahn-Gesellschaft (DRG) from 1930. There are two technical different subclasses, the E 44.0 and the E 44.5.