| Class | Wheel Arr. |
Dr. Dia. |
Cylinders Dia. x Str. |
Boiler Press. |
Ad. Wt. |
EW WO |
Grate Area |
Evap. Surface |
Sup. Surface |
Remarks |
| A-2a | 0-4-0T | 44in | 14x22in | 120psi | 27t | 27t | 28sq.ft. | 680sq.ft. | none | |
| A-2b | 0-4-0T | 44in | 14x22in | 145psi | 28t | 28t | 28sq.ft. | 680sq.ft. | none | 211 tubes |
| A-2c | 0-4-0T | 44in | 14x22in | 145psi | 28t | 28t | 28sq.ft. | 630sq.ft. | none | 145 tubes |
| A-4b | 0-4-0T | 50in | 16x24in | 200psi | 48t | 48t | 40sq.ft. | 1145sq.ft. | none | Camelback |
| A-4b | 0-4-0T | 50in | 16x24in | 200psi | 48t | 48t | 40sq.ft. | 1030sq.ft. | none | 178 tubes |
| A-5a | 0-4-0T | 50in | 18x24in | 185psi | 50t | 50t | 40sq.ft. | 1220sq.ft. | none | Camelback |
| A-5a | 0-4-0T | 50in | 18x24in | 185psi | 50t | 50t | 40sq.ft. | 1145sq.ft. | none | 211 tubes |
| B-4a | 0-6-0T | 50in | 20x24in | 150psi | 54t | 54t | 40sq.ft. | 1140sq.ft. | none | |
| B-5a | 0-6-0 | 50in | 20x24in | 135psi | 51t | 51t | see | Camelback | ||
| B-5b | 0-6-0 | 50in | 20x24in | 160psi | 55t | 55t | below | Camelback | ||
| see | 76sq.ft. | 1300sq.ft. | none | 242 tubes | ||||||
| above | 76sq.ft. | 1075sq.ft. | none | 192 tubes | ||||||
| B-6a | 0-6-0 | 50in | 20x24in | 170psi | 57t | 57t | 27sq.ft. | 1745sq.ft. | none | 227 tubes |
| B-6a | 0-6-0 | 50in | 20x24in | 170psi | 57t | 57t | 27sq.ft. | 1480sq.ft. | none | 138 tubes |
| B-7a | 0-6-0 | 55in | 20x28in | 200psi | 74t | 74t | 80sq.ft. | 1710sq.ft. | none | Camelback |
| B-8a | 0-6-0 | 50in | 20x26in | 200psi | 70t | 70t | 63sq.ft. | 1735sq.ft. | none | Camelback |
| B-8b | 0-6-0 | 50in | 20x26in | 210psi | 71t | 71t | 63sq.ft. | 1935sq.ft. | none | Camelback |
| B-9a | 0-6-0 | 55in | 23x28in | 185psi | 77t | 77t | 81sq.ft. | 1620sq.ft. | none | Comb. cham. |
| B-9b | 0-6-0 | 55in | 23x28in | 185psi | 79t | 79t | 78sq.ft. | 2015sq.ft. | none | |
| C-1sa | 4-4-4 | 80in | 23½x26in | 240psi | 66t | 105t | 108sq.ft. | 2490sq.ft. | 500sq.ft. | |
| D-3h | 4-4-0 | 61in | 18½x22in | 180psi | 40t | 58t | 63sq.ft. | 1610sq.ft. | none | Camelback |
| D-3h | 4-4-0 | 61in | 18½x22in | 180psi | 40t | 58t | 63sq.ft. | 1690sq.ft. | none | 284 tubes |
| D-3i | 4-4-0 | 61in | 18½x22in | 160psi | 37t | 52t | 68sq.ft. | 1050sq.ft. | none | Camelback |
| D-4b | 4-4-0 | 68in | 18½x22in | 160psi | 38t | 56t | 63sq.ft. | 1430sq.ft. | none | Camelback |
| D-5a | 4-4-0 | 68in | 21x22in | 160psi | 32t | 48t | 76sq.ft. | 1320sq.ft. | none | Camelback |
| D-5c | 4-4-0 | 68in | 20x22in | 160psi | 38t | 55t | 76sq.ft. | 1320sq.ft. | none | Or 21x22in |
| D-5c | 4-4-0 | 68in | 20x22in | 160psi | 38t | 55t | 76sq.ft. | 1025sq.ft. | none | 205 tubes |
| D-5f | 4-4-0 | 68in | 20x22in | 200psi | 44t | 65t | 76sq.ft. | 1940sq.ft. | none | Camelback |
| D-5g | 4-4-0 | 68in | 20x22in | 160psi | 37t | 54t | 76sq.ft. | 1365sq.ft. | none | Camelback |
| D-5h | 4-4-0 | 68in | 20x22in | 200psi | 45t | 65t | 76sq.ft. | 1940sq.ft. | none | Camelback |
| D-8a | 4-4-0 | 68in | 19½x24in | 160psi | 44t | 61t | see | Camelback, slide valve | ||
| D-8b | 4-4-0 | 74in | 20x24in | 200psi | 48t | 70t | below | Camelback, piston valve | ||
| see | 76sq.ft. | 1615sq.ft. | none | 267 tubes | ||||||
| above | 76sq.ft. | 1545sq.ft. | none | 253 tubes | ||||||
| D-8c | 4-4-0 | 68in | 20x24in | 200psi | 52t | 76t | 76sq.ft. | 2025sq.ft. | none | Camelback |
| D-8c | 4-4-0 | 68in | 20x24in | 200psi | 52t | 76t | 76sq.ft. | 2025sq.ft. | none | 309 tubes |
| D-8sd | 4-4-0 | 68in | 21x24in | 200psi | 55t | 77t | 76sq.ft. | 1455sq.ft. | 285sq.ft. | Camelback |
| 385, 378 | 4-2-2 | 84in | 13/22x26in | 200psi | 23t | 55t | 76sq.ft. | 1675sq.ft. | none | Camelback |
| D-10a | 4-4-0 | 84in | 19x26in | 200psi | 45t | 68t | 76sq.ft. | 1865sq.ft. | none | Ex 385, 378 |
| D-10b | 4-4-0 | 78in | 19x26in | 200psi | 47t | 70t | 76sq.ft. | 1775sq.ft. | none | Camelback |
| D-11s | 4-4-0 | 68in | 21x24in | 210psi | 55t | 79t | 86sq.ft. | 1515sq.ft. | 255sq.ft. | 208 tubes |
| D-11s | 4-4-0 | 68in | 21x24in | 210psi | 55t | 79t | 86sq.ft. | 1455sq.ft. | 255sq.ft. | 198 tubes |
| D-11s | 4-4-0 | 68in | 21x24in | 210psi | 55t | 79t | 86sq.ft. | 1375sq.ft. | 255sq.ft. | Reboilered |
| E-3a, b | 0-8-0 | 55in | 21x28in | 205psi | 81t | 81t | 81sq.ft. | 2050sq.ft. | none | Camelback |
| E-3b | 0-8-0 | 55in | 21x28in | 205psi | 81t | 81t | 81sq.ft. | 1840sq.ft. | none | 269 tubes |
| E-4a | 0-8-0 | 55in | 22x26in | 180psi | 71t | 71t | 76sq.ft. | 1840sq.ft. | Camelback, ex I-4d | |
| E-4a | 0-8-0 | 55in | 22x26in | 180psi | 71t | 71t | 76sq.ft. | 1540sq.ft. | none | 250 tubes |
| E-5sa | 0-8-0 | 55in | 26x32in | 205psi | 127t | 127t | 81sq.ft. | 2715sq.ft. | 550sq.ft. | |
| G-1sa | 4-6-2 | 80in | 25x28in | 220psi | 80t | 124t | 95sq.ft. | 2925sq.ft. | 850sq.ft. | Orig. 200psi |
| G-1sb | 4-6-2 | 74in | 25x28in | 220psi | 80t | 131t | 95sq.ft. | 2925sq.ft. | 850sq.ft. | |
| G-1sas | 4-6-2 | 80in | 25x28in | 220psi | 90t | 140t | 95sq.ft. | 2985sq.ft. | 625sq.ft. | Streamlined |
| G-2sa | 4-6-2 | 80in | 25x28in | 230psi | 87t | 139t | 95sq.ft. | 3280sq.ft. | 670sq.ft. | |
| G-3sa | 4-6-2 | 80in | 25x28in | 260psi | 90t | 150t | 95sq.ft. | 2985sq.ft. | 770sq.ft. | |
| I-1d | 2-8-0 | 50in | 20x24in | 150psi | 51t | 58t | 76sq.ft. | 1420sq.ft. | none | Camelback |
| I-1d | 2-8-0 | 50in | 20x24in | 150psi | 51t | 58t | 76sq.ft. | 1240sq.ft. | none | 163 tubes |
| I-1e | 2-8-0 | 50in | 20x24in | 150psi | 49t | 57t | 76sq.ft. | 1240sq.ft. | none | Camelback |
| I-1e | 2-8-0 | 50in | 20x24in | 150psi | 49t | 57t | 76sq.ft. | 1080sq.ft. | none | 181 tubes |
| I-2c, d, f | 2-8-0 | 50in | 20½x24in | 175psi | 62t | 70t | 76sq.ft. | 1610sq.ft. | none | Camelback |
| I-2c, d, f | 2-8-0 | 50in | 20½x24in | 175psi | 62t | 70t | 76sq.ft. | 1400sq.ft. | none | 189 tubes |
| I-3a | 2-8-0 | 50in | 20x24in | 175psi | 58t | 65t | 48sq.ft. | 1945sq.ft. | none | 239 tubes |
| I-3a | 2-8-0 | 50in | 20x24in | 175psi | 58t | 65t | 48sq.ft. | 1710sq.ft. | none | 206 tubes |
| I-4d | 2-8-0 | 55in | 22x26in | 180psi | 64t | 72t | 76sq.ft. | 1840sq.ft. | none | Camelback |
| I-4d | 2-8-0 | 55in | 22x26in | 180psi | 64t | 72t | 76sq.ft. | 1540sq.ft. | none | 250 tubes |
| I-5a | 2-8-0 | 50in | 22x28in | 145psi | 67t | 75t | Camelback | |||
| I-5b | 2-8-0 | 50in | 22x28in | 145psi | 64t | 73t | see below | Camelback | ||
| I-5c | 2-8-0 | 50in | 22x28in | 135psi | 64t | 73t | Camelback | |||
| see | above | see | 76sq.ft. | 1815sq.ft. | none | 296 tubes | ||||
| above | 180psi | above | 76sq.ft. | 1585sq.ft. | none | 254 tubes | ||||
| I-6a | 2-8-0 | 55in | 22x28in | 185psi | 77t | 85t | 86sq.ft. | 2405sq.ft. | Camelback, ex I-7f | |
| I-6b | 2-8-0 | 55in | 22x28in | 185psi | 78t | 83t | 86sq.ft. | 2250sq.ft. | Camelback, ex I-7g | |
| I-6c, d | 2-8-0 | 55in | 22x28in | 190psi | 81t | 92t | 86sq.ft. | 2235sq.ft. | none | Camelback |
| I-6c, d | 2-8-0 | 55in | 22x28in | 190psi | 81t | 92t | 86sq.ft. | 2040sq.ft. | none | 324 tubes |
| I-7a,b,f,g | 2-8-0 | 55in | 22x28in | 180psi | 66t | 75t | Camelback | |||
| I-7j | 2-8-0 | 55in | 21x28in | 200psi | 69t | 76t | see below | Camelback | ||
| I-7k | 2-8-0 | 55in | 21x28in | 200psi | 65t | 75t | Camelback | |||
| 33sq.ft. | 2140sq.ft. | none | 272 tubes | |||||||
| see above | 33sq.ft. | 2000sq.ft. | none | 251 tubes | ||||||
| 33sq.ft. | 1900sq.ft. | none | 237 tubes | |||||||
| I-7l, m | 2-8-0 | 55in | 21x28in | 200psi | 66t | 75t | 48sq.ft. | 2125sq.ft. | none | 272 tubes |
| I-7l, m | 2-8-0 | 55in | 21x28in | 200psi | 66t | 75t | 48sq.ft. | 1885sq.ft. | none | 237 tubes |
| I-8a | 2-8-0 | 61in | 22¼x30in | 210psi | 93t | 103t | 90sq.ft. | 3195sq.ft. | none | Camelback |
| I-8a | 2-8-0 | 61in | 22¼x30in | 210psi | 93t | 103t | 90sq.ft. | 2770sq.ft. | none | 354 tubes |
| I-8b | 2-8-0 | 61in | 23x30in | 210psi | 96t | 107t | 90sq.ft. | 2770sq.ft. | none | Camelback |
| I-8sb | 2-8-0 | 61in | 23x30in | 210psi | 96t | 107t | 90sq.ft. | 2125sq.ft. | 475sq.ft. | Camelback |
| I-8sd | 2-8-0 | 55in | 23¼x30in | 210psi | 94t | 105t | 90sq.ft. | 2125sq.ft. | 475sq.ft. | Camelback |
| I-9sa | 2-8-0 | 55in | 25x32in | 210psi | 114t | 128t | 95sq.ft. | 2650sq.ft. | 575sq.ft. | Standard st. |
| I-9sb | 2-8-0 | 55in | 25x32in | 210psi | 117t | 129t | 95sq.ft. | 2650sq.ft. | 575sq.ft. | Duplex stoker |
| I-10sa | 2-8-0 | 61in | 27x32in | 220psi | 132t | 146t | 95sq.ft. | 3330sq.ft. | 760sq.ft. | |
| J-1sa | 2-10-0 | 52in | 25x28in | 180psi | 90t | 105t | 65sq.ft. | 2610sq.ft. | 580sq.ft. | |
| K-1sa | 2-10-2 | 61in | 30½x32in | 220psi | 160t | 199t | 108sq.ft. | 5500sq.ft. | 1500sq.ft. | |
| K-1sb | 2-10-2 | 61in | 30½x32in | 225psi | 165t | 205t | 108sq.ft. | 5500sq.ft. | 1500sq.ft. | |
| K-1sc | 2-10-2 | 61in | 30½x32in | 220psi | 160t | 199t | 108sq.ft. | 5500sq.ft. | 1500sq.ft. | Caprotti |
| L-1a | 4-6-0 | 61in | 20x24in | 145psi | 48t | 62t | 76sq.ft. | 1680sq.ft. | none | Camelback |
| L-1a | 4-6-0 | 61in | 20x24in | 145psi | 48t | 62t | 76sq.ft. | 1390sq.ft. | none | 215 tubes |
| L-1b | 4-6-0 | 61in | 20x24in | 160psi | 49t | 65t | 76sq.ft. | 2200sq.ft. | none | Camelback |
| L-1c | 4-6-0 | 61in | 20x24in | 175psi | 50t | 64t | 76sq.ft. | 1680sq.ft. | none | Camelback |
| L-1c | 4-6-0 | 61in | 20x24in | 175psi | 50t | 64t | 76sq.ft. | 1400sq.ft. | none | 217 tubes |
| L-3b | 4-6-0 | 61in | 21x26in | 185psi | 53t | 71t | 52sq.ft. | 2190sq.ft. | none | Camelback |
| L-3se | 4-6-0 | 61in | 22x26in | 200psi | 59t | 85t | 86sq.ft. | 1665sq.ft. | 315sq.ft. | Camelback |
| L-4e | 4-6-0 | 61in | 21x26in | 200psi | 59t | 76t | 76sq.ft. | 1985sq.ft. | none | Camelback |
| L-4e | 4-6-0 | 61in | 21x26in | 200psi | 59t | 76t | 76sq.ft. | 1750sq.ft. | none | 223 tubes |
| L-4f | 4-6-0 | 61in | 21x26in | 185psi | 52t | 71t | 43sq.ft. | 2320sq.ft. | none | |
| L-5b | 4-6-0 | 68in | 21x28in | 200psi | 57t | 76t | 48sq.ft. | 2355sq.ft. | none | |
| L-5sc | 4-6-0 | 68in | 22x28in | 200psi | 67t | 85t | 86sq.ft. | 1665sq.ft. | 315sq.ft. | Camelback |
| L-6sa | 4-6-0 | 68in | 23x28in | 220psi | 85t | 107t | 90sq.ft. | 1900sq.ft. | 415sq.ft. | Caprotti |
| L-7sb | 4-6-0 | 68in | 23x28in | 205psi | 77t | 98t | 90sq.ft. | 1900sq.ft. | 415sq.ft. | Camelback |
| L-8sc | 4-6-0 | 68in | 22x26in | 200psi | 73t | 90t | 86sq.ft. | 1555sq.ft. | 335sq.ft. | Camelback |
| L-8se | 4-6-0 | 68in | 22x24in | 200psi | 69t | 90t | 86sq.ft. | 1660sq.ft. | 350sq.ft. | Camelback |
| L-10sa | 4-6-0 | 74in | 19x24in(3) | 215psi | 78t | 103t | 90sq.ft. | 2085sq.ft. | 430sq.ft. | Camelback |
| L-10sb | 4-6-0 | 74in | 22x26in | 205psi | 78t | 100t | 90sq.ft. | 2085sq.ft. | 430sq.ft. | Camelback |
| M-1a | 2-8-2 | 61in | 24x32in | 225psi | 113t | 150t | 108sq.ft. | 5510sq.ft. | none | |
| M-1sa | 2-8-2 | 61in | 25x32in | 220psi | 113t | 152t | 108sq.ft. | 3505sq.ft. | 835sq.ft. | |
| M-1sb | 2-8-2 | 56in | 24x32in | 215psi | 113t | 151t | 108sq.ft. | 3505sq.ft. | 835sq.ft. | |
| N-1sb,sc | 2-8-8-2 | 55in | 26/40x32in | 210psi | 197t | 217t | 108sq.ft. | 5925sq.ft. | 1450sq.ft. | Mallet |
| N-1sd | 2-8-8-0 | 55in | 23x32in(4) | 225psi | 217t | 225t | 108sq.ft. | 5875sq.ft. | 1380sq.ft. | |
| P-1e | 4-4-2 | 74in | 20x26in | 200psi | 42t | 76t | 76sq.ft. | 1585sq.ft. | none | Or 19x26in |
| P-1f | 4-4-2 | 74in | 20x26in | 200psi | 43t | 80t | 76sq.ft. | 2425sq.ft. | none | Camelback |
| P-2a | 4-4-2 | 78in | 20½x26in | 205psi | 48t | 87t | 86sq.ft. | 2385sq.ft. | none | Camelback |
| P-2b | 4-4-2 | 78in | 20½x26in | 200psi | 46t | 87t | 86sq.ft. | 2385sq.ft. | none | 285 tubes |
| P-2b | 4-4-2 | 78in | 20½x26in | 190psi | 46t | 87t | 86sq.ft. | 2335sq.ft. | none | 276 tubes |
| P-3a | 4-4-2 | 84in | 15/22x24in | 220psi | 45t | 84t | 81sq.ft. | 2550sq.ft. | none | Camelback |
| P-3d | 4-4-2 | 84in | 21x24in | 220psi | 45t | 84t | 81sq.ft. | 2550sq.ft. | none | Ex P-3a |
| P-3d | 4-4-2 | 84in | 21x24in | 220psi | 45t | 84t | 81sq.ft. | 1850sq.ft. | none | 229 2" tubes |
| P-4b, c | 4-4-2 | 84in | 21x24in | 225psi | 43t | 81t | 79sq.ft. | 3045sq.ft. | none | Stephenson |
| P-4d | 4-4-2 | 84in | 21x24in | 225psi | 49t | 87t | 79sq.ft. | 2945sq.ft. | none | 328 |
| P-4d | 4-4-2 | 80in | 21x24in | 220psi | 49t | 87t | 79sq.ft. | 2945sq.ft. | none | 329 |
| P-4e, f | 4-4-2 | 80in | 21x24in | 225psi | 47t | 89t | 79sq.ft. | 3045sq.ft. | Or 84in dia., ex P4-b, c | |
| P-5sc | 4-4-2 | 80in | 22x26in | 215psi | 57t | 106t | 95sq.ft. | 2450sq.ft. | 525sq.ft. | Camelback |
| P-5sc | 4-4-2 | 80in | 22x26in | 215psi | 57t | 106t | 95sq.ft. | 2175sq.ft. | 475sq.ft. | 158 tubes |
| P-5sd | 4-4-2 | 80in | 23x26in | 215psi | 59t | 102t | see | Camelback | ||
| P-5se | 4-4-2 | 86in | 23x27in | 230psi | 61t | 100t | below | Camelback | ||
| see | 95sq.ft. | 2415sq.ft. | 500sq.ft. | 186 tubes | ||||||
| above | 95sq.ft. | 2145sq.ft. | 475sq.ft. | 158 tubes | ||||||
| P-6sa | 4-4-2 | 80in | 19x24in(3) | 215psi | 55t | 100t | 90sq.ft. | 2090sq.ft. | 450sq.ft. | Camelback |
| P-6sb | 4-4-2 | 80in | 22x26in | 215psi | 55t | 99t | 90sq.ft. | 2090sq.ft. | 450sq.ft. | Camelback |
| P-7sa | 4-4-2 | 80in | 23½x26in | 215psi | 59t | 106t | 108sq.ft. | 2490sq.ft. | 500sq.ft. | Ex C-1sa |
| P-7sb | 4-4-2 | 80in | 23½x26in | 215psi | 59t | 104t | 95sq.ft. | 2450sq.ft. | 500sq.ft. | Ex P-7sa |
| Q-1a, b | 2-6-4T | 61in | 20x24in | 200psi | 55t | 91t | 69sq.ft. | 1980sq.ft. | none | Stephenson |
| Q-1c, d | 2-6-4T | 61in | 20x24in | 200psi | 55t | 92t | 69sq.ft. | 1790sq.ft. | none | Ex Q1a, b |
| T-1 | 4-8-4 | 70in | 27x32in | 240psi | 126t | 200t | 95sq.ft. | 5125sq.ft. | 1215sq.ft. | |
| 100 | 4-4-2 | 68in | 18x24in | 225psi | 45t | 73t | 63sq.ft. | 1275sq.ft. | none | Inspection |
Back to the index Back to the terminal © 2007-2009 J.D.H. Smith