Bavarian Gt 2×4/4
| Bavarian Gt 2×4/4 DRG Class 960 DR Class 960 | ||
|---|---|---|
| Number(s): | K.Bay.Sts.B.: 5751–5765 DRG: 96 001–96 015 |
K.Bay.Sts.B.: 5766–5775 DRG: 96 016–96 025 1 |
| Quantity: | 15 | 10 |
| Manufacturer: | Maffei | |
| Year(s) of manufacture: | 1913/1914 | 1922/1923 |
| Retired: | 1936, 1940, 1944 - 1948, 1954 | |
| Wheel arrangement (Whyte): | 0-8-8-0 | |
| Axle arrangement (UIC): | D'D h4vt | |
| Sub-class: | Gt 88.15 | Gt 88.16 |
| Track gauge: | 1,435 mm (4 ft 8+1⁄2 in) | |
| Length over couplers: | 16,900 mm (55 ft 5 in) | 17,100 mm (56 ft 1 in) |
| Length over buffers: | 17,500 mm (57 ft 5 in) | 17,700 mm (58 ft 1 in) |
| Height: | 4.65 m (15 ft 3 in) | 4.55 m (14 ft 11 in) |
| Width: | 3.15 m (10 ft 4 in) | |
| Wheel spacing: | 1,500 mm (4 ft 11 in) | |
| Wheelbase: | 4,500 mm (14 ft 9 in) | |
| Overall wheelbase: | 12,200 mm (40 ft 0 in) | |
| Minimum curve: | 180 m (590 ft 7 in) | |
| Empty weight: | 99.4 t (97.8 long tons; 109.6 short tons) | 105.4 t (103.7 long tons; 116.2 short tons) |
| Service weight: | 123.2 t (121.3 long tons; 135.8 short tons) | 131.1 t (129.0 long tons; 144.5 short tons) |
| Axle load: | 15.4 t (15.2 long tons; 17.0 short tons) | 16.4 t (16.1 long tons; 18.1 short tons) |
| Top speed: | 50 km/h (31 mph), 40 km/h (25 mph) on 25‰ incline | |
| Indicated power: | 1,470 PS (1,080 kW; 1,450 hp) | 1,630 PS (1,200 kW; 1,610 hp) |
| Driving wheel diameter: | 1,216 mm (3 ft 11.9 in) | |
| Valve gear: | Walschaerts (Heusinger) | |
| No. of cylinders: | 4 (2 LP / 2 HP) | |
| LP cylinder bore: | 800 mm (31 in) | |
| HP cylinder bore: | 520 mm (20 in) | 600 mm (24 in) |
| Piston stroke: | 640 mm (25 in) | |
| Boiler: | 2.46 m3 (87 cu ft) steam 8.43 m3 (298 cu ft) water |
2.46 m3 (87 cu ft) steam 8.21 m3 (290 cu ft) water |
| Boiler overpressure: | 15 bar (1,500 kPa; 220 psi) | |
| No. of heating tubes: | 213 | 218 147 (after rebuild) |
| No. of flues: | 24 | 34 |
| Heating tube length: | 5.075 m (16.65 ft) | |
| Grate area: | 4.25 m2 (45.7 ft2) | |
| Radiative heating area: | 14.75 m2 (158.8 ft2) | 14.65 m2 (157.7 ft2) |
| Tube heating area: | 216.14 m2 (2,326.5 ft2) | 185.78 m2 (1,999.7 ft2) |
| Superheater area: | 55.39 m2 (596.2 ft2) | 65.37 m2 (703.6 ft2) |
| Evaporative heating area: | 230.89 m2 (2,485.3 ft2) | 200.43 m2 (2,157.4 ft2) |
| Water capacity: | 11 m3 (2,400 imp gal; 2,900 US gal) | 12.3 m3 (2,700 imp gal; 3,200 US gal) |
| Fuel: | 4 t (3.94 long tons; 4.41 short tons) coal (4.5 t (4.4 long tons; 5.0 short tons) rebuild) |
5 t (4.9 long tons; 5.5 short tons) coal |
| Brakes: | Westinghouse compressed-air double brake | |
| Auxiliary brake: | Riggenbach counter-pressure brake | |
| Remarks: | 1 techn. data after rebuild 1925/1926 (Serie 2) | |
The Bavarian Class Gt 2×4/4 (bayerische Gt 2x4/4) engine of the Royal Bavarian State Railways (Königlich Bayerische Staats-Eisenbahnen or K.Bay.Sts.B.), was a heavy goods train tank locomotive of the Mallet type. It was later designated the DRG Class 96 (Baureihe 96) by the DRG, DB and DR.