Compare locomotives
Add a locomotive
Soviet Railways No. 6998
In the late thirties, the Soviet Railways tested several streamlined steam locomotives to increase the speed of express trains. One was No. 6998, designed by Dmitry Vasilyevich Lvov and built at Luhansk (Voroshilovgra...
| Soviet Railways No. 6998Remove | |
|---|---|
| Variant | Standard |
| Built | 1938 |
| Manufacturers | Luhansk |
| Wheel arrangement | 2C2 |
| Gauge | 1520 mm |
| Length | 29380 mm |
| Service mass | 138000 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Built | 1938 |
| Manufacturers | Luhansk |
| Wheel arrangement | 4-6-4 (Hudson) |
| Gauge | 1,520 mm |
Dimensions and weights
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Length | 29.38 m |
| Length loco | 16.87 m |
| Wheelbase | 13.16 m |
| Empty mass | 123 t |
| Service mass | 138 t |
| Adhesion mass | 64.5 t |
| Rigid wheelbase | 0.49 m |
| Axle load | 21.5 t |
| Water capacity | 49,000 l |
| Fuel capacity | 22 t (coal) |
Boiler
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Grate area | 7.04 m² |
| Firebox surface | 31.23 m² |
| Tube heating surface | 216.47 m² |
| Evaporative heating surface | 247.7 m² |
| Superheater surface | 119 m² |
| Total heating surface | 366.7 m² |
Power plant
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Driver diameter | 2,200 mm |
| Boiler pressure | 15 bar |
| Expansion type | simple expansion |
| Cylinders | two, 670 x 770 mm |
Power
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 2,200 kW (2,991 PS) |
| Starting effort | 200.3 kN |
Calculated values
| Property | Soviet Railways No. 6998 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.16 |
| Optimal speed | 68 km/h |
| Power-to-weight ratio | 15.9 kW/t |
| Heating Surface Equivalent | 641.9 m² |
| Cylinder volume/HSE | 1 : 845.91 |
| Adhesive weight/Total | 1 : 2.14 |
| Tractive force/Heating surface | 1 : 11.41 |
| Grate area/Heating surface | 1 : 52.09 |
| Firebox/Tube surface | 1 : 6.93 |
| Total/Superheater | 1 : 2.08 |
