Wabash classes F-4 and F-5
originally class I
United States 1899 38 produced
The Wabash Railroad had a total of 38 Moguls built in 1899, which came from three manufacturers and were initially classed as class I. A total of 18 locomotives were built by the Richmond Locomotive Works and Baldwin and had a large firebox for their time and a relatively small boiler. 15 other locomotives came from the Rhode Island Locomotive Works and had a larger boiler. All of these simple-expansion locomotives were later classified as F-4. Also built by Rhode Island and Richmond were five two-cylinder compound locomotives which later became the class F-5.
Technical data
General
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Built | 1899 | ||
| Manufacturers | Richmond, Baldwin | Rhode Island | Rhode Island, Richmond |
| Wheel arrangement | 2-6-0 (Mogul) | ||
| Gauge | 1,435 mm (Standard gauge) | ||
Dimensions and weights
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Wheelbase | 6.81 m | 6.88 m | |
| Total wheelbase | 14.78 m | 14.83 m | |
| Service mass | 56 t | 58.1 t | 56 t |
| Adhesion mass | 47.9 t | ||
| Total mass | 99.7 t | 101.7 t | 99.7 t |
| Rigid wheelbase | 4.27 m | ||
| Axle load | 17.1 t | ||
| Water capacity | 17,034 l | ||
| Fuel capacity | 9.1 t (coal) | ||
Boiler
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Grate area | 2.97 m² | 2.899 m² | 2.97 m² |
| Firebox surface | 14.303 m² | 14.233 m² | 15.232 m² |
| Tube heating surface | 134.992 m² | 145.282 m² | 134.063 m² |
| Evaporative heating surface | 149.295 m² | 159.515 m² | 149.295 m² |
| Total heating surface | 149.3 m² | 159.5 m² | 149.3 m² |
Power plant
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Driver diameter | 1,600 mm | ||
| Boiler pressure | 12.8 bar | 13.4 bar | |
| Expansion type | simple expansion | compound | |
| Cylinders | two, 483 x 711 mm | two, HP: 521 x 711 mm and LP: 826 x 711 mm | |
Power
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Power source | steam | ||
| Estimated power | 671 kW (912 PS) | 679 kW (923 PS) | 701 kW (953 PS) |
| Starting effort | 112.2 kN | 98.5 kN | |
| Starting effort simple | 118.2 kN | ||
Calculated values
| Property | F-4 Richmond, Baldwin | F-4 Rhode Island | F-5 |
|---|---|---|---|
| Factor of adhesion | 1 : 4.18 | 1 : 4.77 | |
| Optimal speed | 37 km/h | 43 km/h | |
| Power-to-weight ratio | 12.0 kW/t | 11.7 kW/t | 12.5 kW/t |
| Heating Surface Equivalent | 220.8 m² | 230.7 m² | 225.5 m² |
| Cylinder volume/HSE | 1 : 1,178.33 | 1 : 1,127.91 | 1 : 1,515.90 |
| Adhesive weight/Total | 1 : 1.17 | 1 : 1.21 | 1 : 1.17 |
| Tractive force/Heating surface | 1 : 15.70 | 1 : 14.69 | 1 : 13.78 |
| Grate area/Heating surface | 1 : 50.27 | 1 : 55.02 | 1 : 50.27 |
| Firebox/Tube surface | 1 : 9.44 | 1 : 10.21 | 1 : 8.80 |
