| South African Class GE 2-8-2+2-8-2 |
|---|
First batch Class GE no. 2264, c. 1924 |
| Type and origin |
|---|
♠ Engine numbers 2260-2275
♥ Engine numbers 2276 & 2277
♣ Engine numbers 2260-2265
♦ Engine numbers 2266-2275 | | Power type | Steam |
|---|
| Designer | Beyer, Peacock & Company |
|---|
| Builder | Beyer, Peacock & Company |
|---|
| Serial number | 6193–6198, 6339–6348, 6716–6717 |
|---|
| Model | Class GE |
|---|
| Build date | 1924–1930 |
|---|
| Total produced | 18 |
|---|
|
| Specifications |
|---|
Configuration:
| |
|---|
| • Whyte | 2-8-2+2-8-2 (Double Mikado) |
|---|
| • UIC | 1'D1'+1'D1'h4 |
|---|
| Driver | 3rd & 5th coupled axles |
|---|
| Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
|---|
| Leading dia. | 28+1⁄2 in (724 mm) |
|---|
| Coupled dia. | 45+1⁄2 in (1,156 mm) as built
46 in (1,168 mm) retyred |
|---|
| Trailing dia. | 28+1⁄2 in (724 mm) |
|---|
| Wheelbase | 70 ft (21,336 mm) |
|---|
| • Engine | ♠ 22 ft 10+1⁄2 in (6,972 mm) each
♥ 22 ft 11 in (6,985 mm) each |
|---|
| • Coupled | 12 ft 9 in (3,886 mm) each |
|---|
| Pivot centres | 35 ft (10,668 mm) |
|---|
Length:
| |
|---|
| • Over couplers | ♠ 76 ft 8+3⁄4 in (23,387 mm)
♥ 76 ft 8+1⁄4 in (23,374 mm) |
|---|
| Height | 12 ft 11+11⁄16 in (3,954 mm) |
|---|
| Frame type | Plate |
|---|
| Axle load | ♠ 13 LT 9 cwt (13,670 kg)
♥ 13 LT 3 cwt (13,360 kg) |
|---|
| • Leading | ♠ 11 LT 4 cwt (11,380 kg) front
11 LT (11,180 kg) rear
♥ 11 LT 2 cwt (11,280 kg) front
11 LT 10 cwt (11,680 kg) rear |
|---|
| • 1st coupled | ♠ 12 LT 6 cwt (12,500 kg)
♥ 12 LT 3 cwt (12,340 kg) |
|---|
| • 2nd coupled | ♠ 13 LT 1 cwt (13,260 kg)
♥ 13 LT 3 cwt (13,360 kg) |
|---|
| • 3rd coupled | ♠ 12 LT 19 cwt (13,160 kg)
♥ 13 LT 1 cwt (13,260 kg) |
|---|
| • 4th coupled | ♠ 12 LT 19 cwt (13,160 kg)
♥ 13 LT 1 cwt (13,260 kg) |
|---|
| • 5th coupled | ♠ 13 LT 7 cwt (13,560 kg)
♥ 12 LT 18 cwt (13,110 kg) |
|---|
| • 6th coupled | ♠ 13 LT 7 cwt (13,560 kg)
♥ 12 LT 18 cwt (13,110 kg) |
|---|
| • 7th coupled | ♠ 13 LT 9 cwt (13,670 kg)
♥ 13 LT (13,210 kg) |
|---|
| • 8th coupled | ♠ 12 LT 2 cwt (12,290 kg)
♥ 12 LT 11 cwt (12,750 kg) |
|---|
| • Trailing | ♠ 11 LT 3 cwt (11,330 kg) front
11 LT 11 cwt (11,740 kg) rear
♥ 11 LT 7 cwt (11,530 kg) front
11 LT 4 cwt (11,380 kg) rear |
|---|
| Adhesive weight | ♠ 103 LT 10 cwt (105,200 kg)
♥ 102 LT 15 cwt (104,400 kg) |
|---|
| Loco weight | ♠ 148 LT 8 cwt (150,800 kg)
♥ 147 LT 18 cwt (150,300 kg) |
|---|
| Fuel type | Coal |
|---|
| Fuel capacity | 9 LT (9.1 t) |
|---|
| Water cap. | 3,300 imp gal (15,000 L) front
1,300 imp gal (5,910 L) rear |
|---|
| Firebox: | |
|---|
| • Type | Belpaire |
|---|
| • Grate area | 52 sq ft (4.8 m2) |
|---|
Boiler:
| |
|---|
| • Pitch | 7 ft 9+1⁄4 in (2,369 mm) |
|---|
| • Diameter | 6 ft 9 in (2,057 mm) |
|---|
| • Tube plates | 11 ft 3 in (3,429 mm) |
|---|
| • Small tubes | 288: 2 in (51 mm) |
|---|
| • Large tubes | 36: 5+1⁄2 in (140 mm) |
|---|
| Boiler pressure | 180 psi (1,241 kPa) |
|---|
| Safety valve | Ramsbottom |
|---|
| Heating surface: | |
|---|
| • Firebox | ♣ 215 sq ft (20.0 m2)
♦♥ 202 sq ft (18.8 m2) |
|---|
| • Tubes | 2,374 sq ft (220.552 m2) |
|---|
| • Arch tubes | ♥ 27 sq ft (2.5 m2) |
|---|
| • Total surface | ♣ 2,589 sq ft (240.5 m2)
♦ 2,576 sq ft (239.3 m2)
♥ 2,603 sq ft (241.8 m2) |
|---|
Superheater:
| |
|---|
| • Heating area | ♣ 362 sq ft (33.6 m2)
♦ 349 sq ft (32.4 m2)
♥ 364 sq ft (33.8 m2) |
|---|
| Cylinders | 4 |
|---|
| Cylinder size | ♠ 18 in (457 mm) bore
♥ 19 in (483 mm) bore
♠♥ 24 in (610 mm) stroke |
|---|
| Valve gear | Walschaerts |
|---|
| Valve type | Piston |
|---|
| Couplers | Johnston link-and-pin
AAR knuckle (1930s) |
|---|
|
| Performance figures |
|---|
| Tractive effort | ♠ 45,640 lbf (203.0 kN) @ 75%
♥ 50,850 lbf (226.2 kN) @ 75% |
|---|
|
|
The South African Railways Class GE 2-8-2+2-8-2 of 1925 was an articulated steam locomotive.
Between 1925 and 1931, the South African Railways placed 18 Class GE Garratt articulated locomotives with a 2-8-2+2-8-2 Double Mikado type wheel arrangement in service. They were built in three batches over six years.