Reading Company steam roster
(post World War II)
Image copyright Roger Hartline. Used with permission.
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Class A-4a 0-4-0
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Class A-5a 0-4-0 #1147-1184
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Class B-7a 0-6-0 #1321-1356
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Class B-8a 0-6-0 #1316-1318
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Class B-8b 0-6-0 #1393-1399 (Last new camelbacks)
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Class B-9a 0-6-0 #1451-1470 (Largest 0-6-0s)
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Class E-4a 0-8-0 #1410-1436* (Rebuilt 2-8-0s)
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Class E-5sa 0-8-0 #1490-1499 (Largest Reading Switchers)
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Class I-8b/sb 2-8-0 #1503-1615* (Last camelback freight engines)
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Class I-8sd 2-8-0 #1529-1617* (rebuilt from I-8a/b/c
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Class I-9sb 2-8-0 #1625-1699
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Class I-9sc 2-8-0 #1950-1979 (Rebuilt from I-9sb #1945-1947)
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Class I-9sd 2-8-0 #1676-1680, 1685-1699 (Rebuilt from I-9sb #1948-1949)
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Class I-10sa 2-8-0 #2000-2049 (#2020-2049 converted to T-1s)
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Class M-1sa 2-8-2 #1700-1756 (#1727-1756 originally M-1sb)
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Class N-1sd 2-8-8-0 #1811-1830 (Built as 2-8-8-2)
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Class K-1sd 2-10-2 #3000-3010 (Built from Mallets)
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Class K-1se 2-10-2 #3011-3020
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Class T-1 4-8-4 #2100-2129 (Built from I-10sas)
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Class L-7sb 4-6-0 #602-615*
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Class L-8sc 4-6-0 #690-698, 700
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Class L-8se 4-6-0 #650-654
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Class L-10sb 4-6-0 #675-676
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Class P-7sb 4-4-2 #350-353 (Built as 4-4-4s)
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Class G-1sa 4-6-2 #105-134
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Class G-1sb 4-6-2 #200-204 (74" drivers)
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Class G-2sa 4-6-2 #175-179 (larger boilers than G-1s)
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Class G-3 4-6-2 #210-219 (last new Reading steam)
* = not all numbers in series represented
At the turn of the century, Reading stopped numbering locomotives according to age, and devised a numbering system based on engine type. Each wheel arrangement was assigned a letter, and these were sub-divided by engines based on general dimensions, i.e. engines of the same weight, length and boiler dimension would share the same number. These basic classifications were further sub-divided with lower-case letters, with "s" denoting a superheated engine, and a, b, c, etc. denoting significant variations such as driver size changes. T-1s and G-3s did not recieve the "sa" classification because superheating was taken for granted by that time, and there were no subsequent variations expected.
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All images copyright Roger Hartline unless otehrwise noted. Used with permission.
