Milwaukee Road class A2
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| Power type | Steam |
|---|---|
| Builder | Baldwin Locomotive Works |
| Build date | 1901–1909 |
| Configuration | 4-4-2 |
| UIC classification | 2'B1' |
| Gauge | 4 ft 8½ in (1,435 mm) |
| Driver size | 84–85 in diameter |
| Boiler pressure | 200–220 psi |
| Cylinders | 4 (Compound) |
| High-pressure cylinder size |
15 in dia x 28 in stroke |
| Low-pressure cylinder size |
25 in dia x 28 in stroke |
| Tractive effort | 20,420–22,190 lbf |
| Career | Milwaukee Road |
| Class | A2, A2-a, A2-b, A2-c, A2 |
| Number in class | 47 |
| Scrapped | 1927–1930 |
The Milwaukee Road's A2 class comprised 47 compound steam locomotives of the 4-4-2 or 'Atlantic' configuration. The Milwaukee Road acquired them in five batches.
The first two batches of 9 and 19 locomotives (classes A2 and A2-a) were built by Baldwin Locomotive Works, and were Vauclain compound locomotives with 84 inches (2.13 m) drivers. The third batch (A2-b) of five locomotive was built by the Milwaukee Road in its Milwaukee, Wisconsin shops with 85 inches (2.159 m) drivers. The forth batch (A2-c) of 12 engines was built by Baldwin as Vauclain compounds with 85 inches (2.159 m) drivers, while the last batch (A2) was for a pair of engines built by Baldwin as balanced compounds.
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[edit] References
- Edson, William D. (Spring 1977). "Milwaukee Road Locomotives". Railroad History (Journal of The Railway and Locomotive Historical Society, Inc.) (136): 28–129.
