| Variant | as built | second boiler | third boiler |
|---|
| General |
| Built | 1857-1895 |
| Manufacturer | Esslingen, VSB |
| Axle config | 0-4-6T (Engerth) |
| Gauge | 4 ft 8 1/2 in (Standard gauge) |
| Dimensions and Weights |
| Length | 37 ft 5 1/8 in | 38 ft 6 9/16 in |
| Empty weight | 72,752 lbs | |
| Service weight | 99,208 lbs | 103,617 lbs |
| Adhesive weight | 46,297 lbs |
| Axle load | 23,149 lbs |
| Water capacity | 1,585 us gal |
| Fuel capacity | 2,205 lbs (coal) |
| Boiler |
| Grate area | 12.8 sq ft | |
| Evaporative heating area | 1,173.6 sq ft | |
| Total heating area | 1,173.6 sq ft | |
| Power Plant |
| Driver diameter | 62.6 in |
| Boiler pressure | 102 psi | 145 psi | 174 psi |
| Expansion type | simple |
| Cylinders | two, 16 9/16 x 20 in | two, 16 1/16 x 20 in |
| Power |
| Power source | steam |
| Indicated power | | 591 hp (441 kW) | |
| Estimated power | 235 hp (175 kW) | |
| Optimal speed | 20 mph | 37 mph | |
| Top speed | 47 mph |
| Starting effort | 7,573 lbf | 10,160 lbf | 12,192 lbf |
| Calculated Values |
| Factor of adhesion | 1 : 6.12 | 1 : 4.56 | 1 : 3.80 |
| Power-to-weight ratio | 0.0024 hp/lb | 0.0057 hp/lb | |
| Adhesive weight/Total | 1 : 2.14 | 1 : 2.24 |
| Tractive force/Heating area | 1 : 1450.66 | |