| Class | Wheel Arrangement |
Dr. Dia. |
Cylinders Diam.xStr. |
Boiler Press. |
Ad. Wt. |
EW WO |
Grate Area |
Evap. Surface |
Sup. Surface |
Remarks |
| A | 2-6-6-4 | 70in | 24x30in(4) | 300psi | 196t | 260t | 122sq.ft. | 6645sq.ft. | 2703sq.ft. | |
| E | 4-6-2 | 68in | 20x28in | 200psi | 59t | 89t | 45sq.ft. | 3430sq.ft. | none | Baker |
| E1 | 4-6-2 | 68in | 20x28in | 200psi | 59t | 89t | 45sq.ft. | 3430sq.ft. | none | Walschaerts |
| E2 | 4-6-2 | 70in | 22½x28in | 200psi | 75t | 112t | 45sq.ft. | 3320sq.ft. | 730sq.ft. | |
| E3 | 4-6-2 | 80in | 26x26in | 200psi | 89t | 133t | 55sq.ft. | 3690sq.ft. | 790sq.ft. | |
| J | 4-8-4 | 70in | 27x32in | 275psi | 130t | 224t | 108sq.ft. | 5270sq.ft. | 2175sq.ft. | Streamlined |
| K1 | 4-8-2 | 70in | 29x28in | 220psi | 107t | 157t | 80sq.ft. | 3855sq.ft. | 880sq.ft. | |
| K2 | 4-8-2 | 69in | 28x30in | 200psi | 110t | 160t | 76sq.ft. | 4660sq.ft. | 1085sq.ft. | USRA Heavy |
| K3 | 4-8-2 | 63in | 28x30in | 225psi | 125t | 182t | 84sq.ft. | 4835sq.ft. | 1380sq.ft. | |
| M | 4-8-0 | 56in | 21x30in | 200psi | 76t | 91t | 45sq.ft. | 2800sq.ft. | none | Stephenson |
| M1 | 4-8-0 | 56in | 21x30in | 200psi | 76t | 91t | 45sq.ft. | 2800sq.ft. | none | Walschaerts |
| M2 | 4-8-0 | 56in | 24x30in | 200psi | 101t | 119t | 45sq.ft. | 3585sq.ft. | 765sq.ft. | |
| S1 | 0-8-0 | 52in | 25x28in | 220psi | 112t | 112t | 47sq.ft. | 2570sq.ft. | 635sq.ft. | Cf. USRA |
| TE1 | (Co'Co')(Co'Co') | 42in | 12 x 375hp el. | 600psi | 371t | 371t | 73sq.ft. | 4450sq.ft. | 1525sq.ft. | Turbine-electric |
| Y2a | 2-8-8-2 | 56in | 25/39x32in | 270psi | 214t | 239t | 96sq.ft. | 6350sq.ft. | 1510sq.ft. | Mallet |
| Y3a | 2-8-8-2 | 57in | 25/39x32in | 270psi | 217t | 241t | 96sq.ft. | 5755sq.ft. | 1580sq.ft. | USRA Heavy |
| Y4 | 2-8-8-2 | 57in | 25/39x32in | 270psi | 230t | 257t | 96sq.ft. | 5865sq.ft. | 1580sq.ft. | Mallet |
| Y5 | 2-8-8-2 | 57in | 25/39x32in | 300psi | 237t | 264t | 106sq.ft. | 5845sq.ft. | 1580sq.ft. | Mallet |
| Y6 | 2-8-8-2 | 57in | 25/39x32in | 300psi | 237t | 264t | 106sq.ft. | 5655sq.ft. | 1775sq.ft. | Mallet |
| Z1a | 2-6-6-2 | 56in | 22/35x32in | 225psi | 161t | 194t | 72sq.ft. | 4630sq.ft. | 970sq.ft. | Mallet |
| Z1b | 2-6-6-2 | 56in | 22/35x32in | 225psi | 171t | 200t | 72sq.ft. | 4630sq.ft. | 970sq.ft. | Mallet |
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