| Class | Wheel Arr- angement |
Dr. Dia. |
Cylinders Diam. x Stroke |
Boiler Press. |
Ad. Wt. |
EW WO |
Grate Area |
Evap. Surface |
Sup. Surface |
Remarks |
| A | 4-8-4 | 73in | 28x30in | 210psi | 118t | 193t | 115sq.ft. | 4600sq.ft. | 1990sq.ft. | |
| A-1 | 4-8-4 | 73in | 27x30in | 250psi | 120t | 190t | 88sq.ft. | 5120sq.ft. | 2155sq.ft. | Timken 1111 |
| A-2 | 4-8-4 | 77in | 28x31in | 260psi | 127t | 222t | 115sq.ft. | 4965sq.ft. | 2175sq.ft. | |
| A-3 | 4-8-4 | 77in | 28x31in | 260psi | 133t | 223t | 115sq.ft. | 4715sq.ft. | 2025sq.ft. | |
| A-4 | 4-8-4 | 77in | 28x31in | 260psi | 134t | 231t | 115sq.ft. | 4675sq.ft. | 1930sq.ft. | Also A-5 |
| B | 4-4-0 | 63in | 18x24in | 150psi | 29t | 46t | 17sq.ft. | 1590sq.ft. | none | Also B-1 |
| B-2 | 4-4-0 | 62in | 16x22in | 150psi | 20t | 27t | 16sq.ft. | 900sq.ft. | none | Baldwin |
| B-2 | 4-4-0 | 62in | 18x26in | 150psi | 29t | 45t | 17sq.ft. | 1450sq.ft. | none | 649 |
| C-1 | 4-4-0 | 62in | 17x24in | 140psi | 27t | 41t | 17sq.ft. | 1355sq.ft. | none | Rome 1883 |
| C-3 | 4-4-0 | 63in | 17x24in | 140psi | 25t | 40t | 16sq.ft. | 1365sq.ft. | none | Baldwin 1883 |
| C-4 | 4-4-0 | 62in | 17x24in | 140psi | 24t | 36t | 33sq.ft. | 1300sq.ft. | none | Baldwin 1882 |
| C-5 | 4-4-0 | 62in | 17x24in | 140psi | 24t | 38t | 16sq.ft. | 1350sq.ft. | none | Rome 1882 |
| C-6 | 4-4-0 | 62in | 18x26in | 140psi | 24t | 38t | 17sq.ft. | 1325sq.ft. | none | Portland |
| C-7 | 4-4-0 | 62in | 17x24in | 140psi | 24t | 39t | 17sq.ft. | 1150sq.ft. | none | Pittsburgh 1888 |
| C-8 | 4-4-0 | 62in | 17x24in | 140psi | 23t | 36t | 18sq.ft. | 1175sq.ft. | none | Taunton |
| C-9 | 4-4-0 | 62in | 17x20in | 140psi | 23t | 37t | 18sq.ft. | 1000sq.ft. | none | Hinkley |
| C-10 | 4-4-0 | 62in | 17x24in | 140psi | 23t | 36t | 15sq.ft. | 1025sq.ft. | none | Baldwin 1881 |
| C-11 | 4-4-0 | 62in | 17x24in | 140psi | 22t | 35t | 16sq.ft. | 1050sq.ft. | none | Baldwin 1879 |
| C-12 | 4-4-0 | 62in | 17x24in | 140psi | 22t | 36t | 16sq.ft. | 1125sq.ft. | none | Manchester |
| C-13 | 4-4-0 | 62in | 17x24in | 140psi | 22t | 36t | 15sq.ft. | 960sq.ft. | none | Portland |
| C-14 | 4-4-0 | 62in | 17x24in | 140psi | 21t | 34t | 15sq.ft. | 1000sq.ft. | none | 899, Baldwin |
| C-19 | 4-4-0 | 63in | 17x24in | 140psi | 28t | 43t | 16sq.ft. | 1350sq.ft. | none | Rome 1887 |
| C-20 | 4-4-0 | 59in | 17x24in | 145psi | 26t | 39t | 17sq.ft. | 1360sq.ft. | none | Dickson 1887 |
| C-21 | 4-4-0 | 63in | 17x24in | 145psi | 26t | 41t | 18sq.ft. | 1200sq.ft. | none | Rome 1888 |
| C-22 | 4-4-0 | 59in | 17x24in | 145psi | 24t | 38t | 17sq.ft. | 1250sq.ft. | none | Brooks |
| C-23 | 4-4-0 | 63in | 17x24in | 145psi | 23t | 36t | 16sq.ft. | 1050sq.ft. | none | Rogers 1881 |
| C-24 | 4-4-0 | 64in | 17x24in | 145psi | 21t | 34t | 17sq.ft. | 1040sq.ft. | none | Schenectady 1881 |
| C-25 | 4-4-0 | 63in | 16x24in | 135psi | 20t | 34t | 15sq.ft. | 925sq.ft. | none | Baldwin 1879 |
| C-26 | 4-4-0 | 63in | 15x24in | 135psi | 19t | 32t | 15sq.ft. | 890sq.ft. | none | Baldwin 1870 |
| C-27 | 4-4-0 | 63in | 15x22in | 135psi | 22t | 28t | 13sq.ft. | 900sq.ft. | none | Baldwin 1870 |
| C-28 | 4-4-0 | 63in | 15x24in | 135psi | 19t | 29t | 14sq.ft. | 835sq.ft. | none | Baldwin 1871 |
| C-29 | 4-4-0 | 59in | 16x24in | 135psi | 20t | 32t | 16sq.ft. | 840sq.ft. | none | Baldwin 1874 |
| C-30 | 4-4-0 | 63in | 17x24in | 150psi | 27t | 43t | 18sq.ft. | 1260sq.ft. | none | RI 1887 |
| C-31 | 4-4-0 | 63in | 17x24in | 150psi | 26t | 42t | 18sq.ft. | 1190sq.ft. | none | 1149, 207 tubes |
| C-31 | 4-4-0 | 63in | 17x24in | 150psi | 26t | 42t | 18sq.ft. | 1150sq.ft. | none | 1150, 200 tubes |
| C-32 | 4-4-0 | 56in | 16x24in | 140psi | 20t | 32t | 16sq.ft. | 915sq.ft. | none | Baldwin |
| C-33 | 4-4-0 | 56in | 15x24in | 120psi | 21t | 29t | 15sq.ft. | 740sq.ft. | none | |
| D | 2-6-0 | 55in | 18x24in | 140psi | 36t | 42t | 16sq.ft. | 1580sq.ft. | none | Baldwin 1883 |
| D-1 | 2-6-0 | 54in | 18x24in | 140psi | 35t | 41t | 14sq.ft. | 1125sq.ft. | none | Baldwin 1881 |
| D-1 | 0-6-0 | 54in | 17x24in | 140psi | 40t | 40t | 14sq.ft. | 1125sq.ft. | none | Rebuilt |
| D-2 | 2-6-0 | 55in | 18x24in | 150psi | 39t | 46t | 17sq.ft. | 1640sq.ft. | none | Baldwin 1888 |
| D-3 | 2-6-0 | 57in | 18x24in | 150psi | 39t | 47t | 17sq.ft. | 1550sq.ft. | none | Baldwin 1889 |
| D-5 COMP | 2-6-0 | 57in | 19(1)/30(1)x24in | 200psi | 49t | 58t | 18sq.ft. | 1715sq.ft. | none | |
| D-6 | 2-6-0 | 55in | 20x26in | 160psi | 51t | 59t | 28sq.ft. | 1530sq.ft. | none | |
| D-9 | 2-6-0 | 57in | 17x26in | 200psi | 43t | 50t | 23sq.ft. | 1320sq.ft. | none | Ex M&I 11 |
| E | 4-6-0 | 54in | 19x24in | 140psi | 32t | 43t | 16sq.ft. | 1325sq.ft. | none | Baldwin 1882 |
| E-1 | 4-6-0 | 59in | 19x26in | 150psi | 36t | 50t | 19sq.ft. | 1635sq.ft. | none | Manchester 1888 |
| E-2 | 4-6-0 | 63in | 19x24in | 150psi | 35t | 49t | 19sq.ft. | 1615sq.ft. | none | Baldwin 1888 |
| E-3 | 4-6-0 | 63in | 19x24in | 150psi | 37t | 52t | 19sq.ft. | 1755sq.ft. | none | Baldwin 1889 |
| E-4 | 4-6-0 | 56in | 19x24in | 150psi | 41t | 51t | 19sq.ft. | 1300sq.ft. | none | RI 1890 |
| E-5 | 4-6-0 | 67in | 19x24in | 180psi | 46t | 60t | 29sq.ft. | 1980sq.ft. | none | Schenectady 1893 |
| E-6 | 4-6-0 | 56in | 19x24in | 145psi | 41t | 51t | 19sq.ft. | 1300sq.ft. | none | RI 1890 |
| E-7 | 4-6-0 | 56in | 21x26in | 160psi | 46t | 62t | 30sq.ft. | 1860sq.ft. | none | Cooke 1892 |
| E-8 | 4-6-0 | 55in | 17x24in | 140psi | 30t | 41t | 15sq.ft. | 1230sq.ft. | none | Baldwin 1890 |
| F | 2-8-0 | 49in | 20x24in | 150psi | 44t | 49t | 31sq.ft. | 1950sq.ft. | none | Baldwin 1883 |
| F-1 | 2-8-0 | 51in | 22x28in | 150psi | 61t | 68t | 35sq.ft. | 2320sq.ft. | none | Baldwin 1888 |
| F-1 | 2-8-0 | 51in | 22x28in | 150psi | 68t | 76t | 35sq.ft. | 2335sq.ft. | none | Reboilered |
| F-1 | 2-8-0 | 51in | 15/25x28in | 150psi | 61t | 68t | 35sq.ft. | 2320sq.ft. | none | Vauclain |
| F-2 | 2-8-0 | 51in | 21x26in | 150psi | 55t | 62t | 33sq.ft. | 1985sq.ft. | none | Baldwin 1888 |
| F-2 | 0-8-0 | 51in | 21x26in | 150psi | 58t | 58t | 33sq.ft. | 1985sq.ft. | none | Rebuilt 1912 |
| F-3 | 2-8-0 | 57in | 20x24in | 160psi | 51t | 57t | 27sq.ft. | 1870sq.ft. | none | Rome 1889 |
| F-4 | 2-8-0 | 50in | 20x24in | 140psi | 45t | 52t | 34sq.ft. | 2000sq.ft. | none | Grant 1887 |
| F-5 | 2-8-0 | 51in | 20x24in | 150psi | 55t | 61t | 31sq.ft. | 1985sq.ft. | none | Schenectady 1900 |
| F-5 | 0-8-0 | 51in | 20x24in | 165psi | 57t | 67t | 31sq.ft. | 1985sq.ft. | none | Rebuilt 1912 |
| F-6 | 2-8-0 | 51in | 20x24in | 150psi | 51t | 58t | 30sq.ft. | 1830sq.ft. | none | Richmond 1895 |
| F-6 | 0-8-0 | 51in | 20x24in | 150psi | 58t | 58t | 30sq.ft. | 1830sq.ft. | none | Rebuilt 1912 |
| F-7 | 2-8-0 | 55in | 20x24in | 150psi | 49t | 56t | 26sq.ft. | 1375sq.ft. | none | RI 1888 |
| F-8 | 2-8-0 | 51in | 20x24in | 140psi | 39t | 44t | 23sq.ft. | 1235sq.ft. | none | PRR I |
| G | 0-8-0 | 50in | 19x24in | 180psi | 62t | 62t | 30sq.ft. | 2025sq.ft. | none | Ex F |
| G-1 | 0-8-0 | 51in | 25x28in | 175psi | 97t | 97t | 47sq.ft. | 2775sq.ft. | 615sq.ft. | USRA |
| G-2 | 0-8-0 | 51in | 25x28in | 175psi | 98t | 98t | 47sq.ft. | 2765sq.ft. | 615sq.ft. | |
| H | 0-4-0 | 49in | 15x24in | 140psi | 25t | 25t | 11sq.ft. | 665sq.ft. | none | Baldwin 1871 |
| H-1 | 0-4-0 | 47in | 14x22in | 120psi | 21t | 21t | 9sq.ft. | 525sq.ft. | none | Baldwin 1871 |
| H-1 | 0-4-0T | 47in | 14x22in | 120psi | 30t | 30t | 9sq.ft. | 500sq.ft. | none | Rebuilt |
| H-2 | 0-4-2T | 40in | 12x18in | 130psi | 15t | 18t | 10sq.ft. | 325sq.ft. | none | Baldwin 1889 |
| H-3 | 0-4-0 | 51in | 17x24in | 140psi | 31t | 31t | 13sq.ft. | 950sq.ft. | none | RI 1883, also H-2 |
| H-4 | 0-4-4T | 48in | 14x20in | 140psi | 23t | 34t | 12sq.ft. | 565sq.ft. | none | RI 1889 |
| H-5 | 2-4-0 | 40in | 10x18in | 140psi | 15t | 18t | 10sq.ft. | 450sq.ft. | none | Grant 1879 |
| I | 0-6-0 | 49in | 16x24in | 140psi | 32t | 32t | 17sq.ft. | 900sq.ft. | none | Baldwin 1883 |
| I-1 | 0-6-0 | 49in | 16x24in | 150psi | 34t | 34t | 17sq.ft. | 1010sq.ft. | none | Ex I |
| I-2 | 0-6-0 | 49in | 17x24in | 140psi | 35t | 35t | 15sq.ft. | 1225sq.ft. | none | Dickson 1887 |
| J, later C-2 | 4-4-0 | 62in | 17x24in | 150psi | 27t | 41t | 18sq.ft. | 1545sq.ft. | none | Baldwin 1883 |
| K | 2-6-0 | 54in | 18x24in | 140psi | 35t | 42t | 15sq.ft. | 1600sq.ft. | none | Baldwin 1883 |
| K-1 | 2-6-0 | 54in | 18x24in | 140psi | 34t | 40t | 16sq.ft. | 1110sq.ft. | none | Baldwin 1881 |
| K-1 | 0-6-0 | 54in | 17x24in | 140psi | 39t | 39t | 16sq.ft. | 1110sq.ft. | none | Rebuilt |
| K-2 | 0-6-0 | 49in | 16x24in | 140psi | 34t | 34t | 15sq.ft. | 1125sq.ft. | none | Ex K |
| L | 0-6-0 | 49in | 18x24in | 140psi | 35t | 35t | 22sq.ft. | 1100sq.ft. | none | Baldwin 1883 |
| L-1 | 0-6-0 | 55in | 18x24in | 150psi | 45t | 45t | 17sq.ft. | 1525sq.ft. | none | Grant 1889 |
| L-2 | 0-6-0 | 51in | 18x24in | 140psi | 36t | 36t | 21sq.ft. | 1035sq.ft. | none | Rome 1887 |
| L-3 | 0-6-0 | 50in | 18x26in | 150psi | 42t | 42t | 19sq.ft. | 1250sq.ft. | none | Rome 1880 |
| L-4 | 0-6-0 | 51in | 18x24in | 180psi | 43t | 43t | 17sq.ft. | 1500sq.ft. | none | Baldwin 1896 |
| L-5 | 0-6-0 | 51in | 19x24in | 180psi | 52t | 52t | 22sq.ft. | 1485sq.ft. | none | Rogers 1899 |
| L-6 | 0-6-0 | 51in | 19x26in | 180psi | 57t | 57t | 28sq.ft. | 1680sq.ft. | none | Also L-7 |
| L-8 | 0-6-0 | 50in | 18x24in | 140psi | 38t | 38t | 14sq.ft. | 1125sq.ft. | none | Baldwin 1891 |
| L-9 | 0-6-0 | 51in | 20x26in | 180psi | 68t | 68t | 28sq.ft. | 1915sq.ft. | none | Original |
| L-9 | 0-6-0 | 51in | 20x26in | 180psi | 70t | 70t | 28sq.ft. | 1575sq.ft. | 280sq.ft. | Rebuilt |
| L-10 | 0-6-0 | 51in | 20x26in | 180psi | 69t | 69t | 28sq.ft. | 1560sq.ft. | 245sq.ft. | |
| M | 2-10-0 | 46in | 22x26in | 150psi | 59t | 61t | 36sq.ft. | 2330sq.ft. | none | |
| N | 4-4-2 | 78in | 19x26in | 180psi | 34t | 64t | 30sq.ft. | 2330sq.ft. | none | |
| N-1 | 4-4-2 | 73in | 21x26in | 185psi | 46t | 89t | 44sq.ft. | 2250sq.ft. | 435sq.ft. | 603 |
| N-1 | 4-4-2 | 73in | 21x26in | 185psi | 46t | 89t | 44sq.ft. | 2285sq.ft. | 370sq.ft. | 604 |
| P COMP | 4-6-0 | 69in | 22(1)/34(1)x26in | 200psi | 51t | 68t | 31sq.ft. | 2485sq.ft. | none | 314 tubes |
| P SIMPLE | 4-6-0 | 69in | 20x26in | 200psi | 51t | 68t | 31sq.ft. | 2485sq.ft. | none | 314 tubes |
| P SIMPLE | 4-6-0 | 69in | 20x26in | 200psi | 51t | 68t | 31sq.ft. | 2470sq.ft. | none | 312 tubes |
| P SUPHTR | 4-6-0 | 69in | 20x26in | 200psi | 52t | 70t | 31sq.ft. | 1805sq.ft. | 390sq.ft. | |
| P-1 COMP | 4-6-0 | 73in | 22(1)/34(1)x26in | 200psi | 53t | 73t | 31sq.ft. | 2470sq.ft. | none | |
| P-1 SIMPLE | 4-6-0 | 73in | 20x26in | 200psi | 53t | 70t | 31sq.ft. | 2470sq.ft. | none | |
| P-1 SUPHTR | 4-6-0 | 73in | 20x26in | 200psi | 54t | 72t | 31sq.ft. | 1805sq.ft. | 390sq.ft. | |
| P-2 COMP | 4-6-0 | 69in | 22(1)/34(1)x26in | 200psi | 53t | 73t | 31sq.ft. | 2470sq.ft. | none | |
| P-2 SIMPLE | 4-6-0 | 69in | 20x26in | 200psi | 53t | 70t | 31sq.ft. | 2470sq.ft. | none | |
| P-2 SUPHTR | 4-6-0 | 69in | 20x26in | 200psi | 54t | 72t | 31sq.ft. | 1805sq.ft. | 390sq.ft. | |
| P-3 | 4-6-0 | 63in | 22(1)/34(1)x26in | 200psi | 56t | 75t | 31sq.ft. | 2470sq.ft. | none | |
| Q | 4-6-2 | 69in | 22x26in | 200psi | 61t | 92t | 47sq.ft. | 3460sq.ft. | none | As built |
| Q | 4-6-2 | 69in | 22x26in | 200psi | 60t | 93t | 47sq.ft. | 2405sq.ft. | 445sq.ft. | Reboilered |
| Q-1 | 4-6-2 | 69in | 22x26in | 200psi | 65t | 102t | 44sq.ft. | 2415sq.ft. | 445sq.ft. | |
| Q-2 | 4-6-2 | 69in | 22x26in | 180psi | 69t | 106t | 44sq.ft. | 2400sq.ft. | 445sq.ft. | Rebuilt 1917 |
| Q-3 | 4-6-2 | 69in | 22x26in | 200psi | 66t | 107t | 44sq.ft. | 2400sq.ft. | 445sq.ft. | Or 23x26in |
| Q-3 | 4-6-2 | 69in | 24½x26in | 180psi | 66t | 107t | 44sq.ft. | 2400sq.ft. | 445sq.ft. | 2153, 2169 |
| Q-4 | 4-6-2 | 69in | 24½x26in | 180psi | 64t | 108t | 44sq.ft. | 2450sq.ft. | 390sq.ft. | |
| Q-4 | 4-6-2 | 69in | 24½x26in | 180psi | 64t | 108t | 44sq.ft. | 2400sq.ft. | 515sq.ft. | 2180, 2205 |
| Q-5 | 4-6-2 | 73in | 26x28in | 200psi | 90t | 146t | 70sq.ft. | 3460sq.ft. | 930sq.ft. | |
| Q-6 | 4-6-2 | 73in | 26x28in | 190psi | 89t | 146t | 70sq.ft. | 3420sq.ft. | 930sq.ft. | |
| R | 4-6-0 | 63in | 22(1)/34(1)x26in | 200psi | 57t | 78t | 34sq.ft. | 2895sq.ft. | none | Schenectady 1897 |
| S | 4-6-0 | 63in | 22(1)/34(1)x28in | 200psi | 60t | 79t | 34sq.ft. | 2945sq.ft. | none | Schenectady 1898 |
| S-1 | 4-6-0 | 63in | 22(1)/34(1)x30in | 200psi | 62t | 80t | 34sq.ft. | 3015sq.ft. | none | Schenectady 1899 |
| S-2 | 4-6-0 | 63in | 22(1)/34(1)x30in | 200psi | 64t | 83t | 34sq.ft. | 3015sq.ft. | none | Schenectady 1900 |
| S-3 | 4-6-0 | 63in | 22(1)/34(1)x30in | 200psi | 64t | 83t | 50sq.ft. | 3080sq.ft. | none | Schenectady 1901 |
| S-4 COMP | 4-6-0 | 63in | 15½/26x30in | 200psi | 65t | 86t | 49sq.ft. | 3090sq.ft. | none | Tandem cpd. |
| S-4 SIMP | 4-6-0 | 63in | 21x30in | 200psi | 65t | 86t | 49sq.ft. | 3090sq.ft. | none | |
| S-4 SIMP SUP | 4-6-0 | 63in | 21x30in | 200psi | 66t | 88t | 49sq.ft. | 2230sq.ft. | 485sq.ft. | |
| S-10 | 4-6-0 | 57in | 19x26in | 190psi | 52t | 69t | 39sq.ft. | 2010sq.ft. | none | |
| T | 2-6-2 | 63in | 21x28in | 200psi | 70t | 93t | 44sq.ft. | 2360sq.ft. | none | Original, also T-1 |
| T | 2-6-2 | 63in | 21½x28in | 200psi | 71t | 95t | 44sq.ft. | 1920sq.ft. | 400sq.ft. | Rebuilt, also T-1 |
| V | 0-4-4-4-0T | 36in | 14/14in(3) | 180psi | 78t | 78t | 22sq.ft. | 1185sq.ft. | none | Shay |
| V-2 | 0-4-4-0T | 40in | 16¾/14in(3) | 160psi | 58t | 58t | 20sq.ft. | 800sq.ft. | none | Heisler |
| W | 2-8-2 | 63in | 24x30in | 200psi | 89t | 117t | 44sq.ft. | 4007sq.ft. | none | As built |
| W | 2-8-2 | 63in | 24x30in | 200psi | 94t | 121t | 44sq.ft. | 2860sq.ft. | 570sq.ft. | Reboilered |
| W TAN | 2-8-2 | 63in | 19/30x30in | 150psi | 89t | 118t | 44sq.ft. | 4005sq.ft. | none | Tandem cpd. |
| W-1 | 2-8-2 | 63in | 27½x30in | 150psi | 95t | 122t | 44sq.ft. | 2850sq.ft. | 465sq.ft. | Original |
| W-1 | 2-8-2 | 63in | 25x30in | 185psi | 95t | 122t | 44sq.ft. | 2850sq.ft. | 465sq.ft. | 1918 |
| W-1 | 2-8-2 | 63in | 25x30in | 200psi | 95t | 122t | 44sq.ft. | 2850sq.ft. | 465sq.ft. | 1927 |
| W-1 | 2-8-2 | 63in | 25x30in | 200psi | 95t | 122t | 44sq.ft. | 2885sq.ft. | 570sq.ft. | No. 1696 |
| W-2 | 2-8-2 | 63in | 27½x30in | 200psi | 98t | 122t | 44sq.ft. | 2875sq.ft. | 570sq.ft. | Ex W TAN |
| W-2 | 2-8-2 | 63in | 25x30in | 200psi | 98t | 122t | 44sq.ft. | 2875sq.ft. | 570sq.ft. | after 1918 |
| W-3 | 2-8-2 | 63in | 28x30in | 200psi | 112t | 153t | 70sq.ft. | 3590sq.ft. | 845sq.ft. | |
| W-3 | 2-8-2 | 63in | 28x30in | 200psi | 112t | 153t | 70sq.ft. | 3645sq.ft. | 845sq.ft. | Siphons |
| W-4 | 2-8-2 | 63in | 24x28in | 185psi | 93t | 113t | 44sq.ft. | 2395sq.ft. | 525sq.ft. | Ex T |
| W-5 | 2-8-2 | 63in | 28x30in | 200psi | 116t | 159t | 70sq.ft. | 3645sq.ft. | 845sq.ft. | Siphons |
| X | 4-8-0 | 55in | 23(1)/34(1)x30in | 200psi | 67t | 83t | 35sq.ft. | 2945sq.ft. | none | Original |
| X | 4-8-0 | 55in | 20x30in | 175psi | 66t | 84t | 35sq.ft. | 2235sq.ft. | 470sq.ft. | Rebuilt |
| Y | 2-8-0 | 55in | 23(1)/34(1)x34in | 200psi | 78t | 86t | 35sq.ft. | 2875sq.ft. | none | Original |
| Y | 2-8-0 | 55in | 20x34in | 175psi | 79t | 87t | 35sq.ft. | 2160sq.ft. | 470sq.ft. | Rebuilt |
| Y-1 | 2-8-0 | 55in | 15/28x34in | 200psi | 77t | 88t | 35sq.ft. | 3080sq.ft. | none | Tandem cpd. |
| Y-1 | 2-8-0 | 55in | 20x34in | 175psi | 78t | 87t | 35sq.ft. | 2220sq.ft. | 470sq.ft. | Rebuilt |
| Y-2 | 2-8-0 | 63in | 15/28x34in | 200psi | 79t | 90t | 52sq.ft. | 2990sq.ft. | none | Tandem cpd. |
| Y-2 | 2-8-0 | 63in | 22x30in | 200psi | 80t | 90t | 52sq.ft. | 2155sq.ft. | 485sq.ft. | Rebuilt |
| Y-3 | 2-8-0 | 55in | 15/28x34in | 200psi | 84t | 95t | 52sq.ft. | 3650sq.ft. | none | Tandem cpd. |
| Y-3 | 2-8-0 | 55in | 20x34in | 175psi | 83t | 93t | 52sq.ft. | 2540sq.ft. | 510sq.ft. | Rebuilt |
| Y-4 | 2-8-0 | 63in | 22x30in | 200psi | 78t | 88t | 52sq.ft. | 3420sq.ft. | none | |
| Y-5 | 2-8-0 | 55in | 22x30in | 200psi | 81t | 90t | 52sq.ft. | 3650sq.ft. | none | |
| Z | 2-6-6-2 | 55in | 21½/33x32in | 200psi | 143t | 161t | 78sq.ft. | 5608sq.ft. | none | Mallet |
| Z-1 | 2-6-6-2 | 55in | 20/31x30in | 210psi | 119t | 138t | 53sq.ft. | 4005sq.ft. | none | Mallet |
| Z-2 | 2-8-8-2 | 57in | 26/40x30in | 200psi | 182t | 201t | 84sq.ft. | 4175sq.ft. | 995sq.ft. | Reboilered |
| Z-3 | 2-8-8-2 | 57in | 26/40x30in | 200psi | 190t | 219t | 84sq.ft. | 5495sq.ft. | 1305sq.ft. | Mallet |
| Z-4 | 2-8-8-2 | 57in | 25/39x32in | 240psi | 220t | 246t | 96sq.ft. | 6050sq.ft. | 1475sq.ft. | USRA |
| Z-5 | 2-8-8-4 | 63in | 26x32in(4) | 250psi | 254t | 328t | 182sq.ft. | 7670sq.ft. | 3220sq.ft. | Later 162sq.ft. |
| Z-6 | 4-6-6-4 | 69in | 23x32in(4) | 250psi | 193t | 283t | 108sq.ft. | 5380sq.ft. | 1650sq.ft. | |
| Z-7 | 4-6-6-4 | 70in | 23x32in(4) | 260psi | 201t | 292t | 152sq.ft. | 5750sq.ft. | 2105sq.ft. | |
| Z-8 | 4-6-6-4 | 70in | 23x32in(4) | 260psi | 201t | 292t | 152sq.ft. | 5830sq.ft. | 2115sq.ft. |
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