| Class | Wheel Arr. |
Dr. Dia. |
Cylinders Dia. x Str. |
Boiler Press. |
Ad. Wt. |
EW WO |
Grate Area |
Evap. Surface |
Sup. Surface |
Remarks |
| A-1 | 0-6-0 | 51in | 20x26in | 180psi | 68t | 68t | 28sq.ft. | 1915sq.ft. | none | ALCo 1907 |
| C-1 | 4-4-2 | 73in | 15/25x26in | 210psi | 45t | 94t | 54sq.ft. | 3490sq.ft. | none | Baldwin 1909 |
| D-1 | 4-6-0 | 73in | 23½x30in | 200psi | 70t | 95t | 55sq.ft. | 3370sq.ft. | 530sq.ft. | GN E-14 |
| D-3 | 4-6-0 | 69in | 20x26in | 200psi | 51t | 68t | 31sq.ft. | 2475sq.ft. | none | NP P |
| D-7 | 4-6-0 | 73in | 22x28in | 200psi | 61t | 80t | 34sq.ft. | 2305sq.ft. | 350sq.ft. | GN E-15s |
| E-1 | 4-8-4 | 77in | 28x31in | 260psi | 135t | 221t | 115sq.ft. | 4715sq.ft. | 2025sq.ft. | Baldwin 1938 |
| F-1 | 2-6-2 | 69in | 22x30in | 210psi | 68t | 95t | 54sq.ft. | 3490sq.ft. | none | GN J-2 |
| F-1s | 2-6-2 | 69in | 22x30in | 210psi | 68t | 95t | 54sq.ft. | 2765sq.ft. | 635sq.ft. | Ex F-1 |
| H-1 | 4-6-2 | 73in | 23½x30in | 200psi | 76t | 129t | 55sq.ft. | 3155sq.ft. | 775sq.ft. | Ex D-1 |
| L-1 | 4-4-0 | 62in | 18x26in | 160psi | 28t | 45t | 17sq.ft. | 1450sq.ft. | none | Schen. 1889 |
| M-1 | 2-6-0 | 54in | 18x24in | 140psi | 35t | 41t | 14sq.ft. | 1125sq.ft. | none | NP D-1 |
| M-2 | 2-6-0 | 55in | 19x24in | 170psi | 49t | 55t | 22sq.ft. | 1365sq.ft. | none | GN D-4 |
| N-1 | 2-8-0 | 55in | 19x26in | 175psi | 54t | 62t | 25sq.ft. | 1585sq.ft. | none | GN F-1 |
| N-2 | 2-8-0 | 55in | 20x32in | 210psi | 82t | 88t | 59sq.ft. | 2730sq.ft. | none | GN F-8 |
| N-2s | 2-8-0 | 55in | 23½x32in | 190psi | 90t | 99t | 59sq.ft. | 2265sq.ft. | 500sq.ft. | Ex N-2 |
| N-4 | 2-8-0 | 51in | 22x28in | 150psi | 61t | 68t | 35sq.ft. | 2320sq.ft. | none | NP F-1 |
| N-5 | 2-8-0 | 51in | 22x28in | 150psi | 68t | 76t | 35sq.ft. | 2335sq.ft. | none | NP F-1 |
| N-6 | 2-8-0 | 63in | 22x30in | 200psi | 80t | 90t | 52sq.ft. | 2155sq.ft. | 485sq.ft. | NP Y-2 |
| N-7 | 2-8-0 | 63in | 22x30in | 200psi | 78t | 88t | 52sq.ft. | 3420sq.ft. | none | NP Y-4 |
| O-1 | 2-8-2 | 63in | 28x32in | 170psi | 100t | 130t | 78sq.ft. | 4720sq.ft. | 1060sq.ft. | GN O-1 |
| O-2 | 2-8-2 | 63in | 25x30in | 185psi | 95t | 122t | 44sq.ft. | 2850sq.ft. | 465sq.ft. | NP W-1 |
| O-3s | 2-8-2 | 63in | 28x30in | 200psi | 112t | 153t | 70sq.ft. | 3590sq.ft. | 845sq.ft. | 212 tubes |
| O-3 | 2-8-2 | 63in | 28x30in | 200psi | 112t | 153t | 70sq.ft. | 3635sq.ft. | 845sq.ft. | 216 tubes |
| O-4 | 2-8-2 | 63in | 28x32in | 190psi | 110t | 145t | 78sq.ft. | 4455sq.ft. | 1130sq.ft. | GN O-4 |
| Z-6 | 4-6-6-4 | 69in | 23x32in(4) | 250psi | 193t | 283t | 108sq.ft. | 5380sq.ft. | 1650sq.ft. | ALCo 1937 |
| Z-8 | 4-6-6-4 | 70in | 23x32in(4) | 260psi | 201t | 292t | 152sq.ft. | 5830sq.ft. | 2115sq.ft. | ALCo 1944 |
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