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Imperial Russian Railways series О
The railway administrations of the Tsarist Empire combined eight-coupled freight locomotives under the letter О, which made it to a number of more than 9,000 in different versions. The series went back to a type from ...
General
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Built | 1890-1915, 1925-1928 |
| Manufacturers | Kolomna, Bryansk, Votkinsk, Luhansk, Nevski, Kirov, Sormovo, Malyschev, Wiener Neustadt, Henschel, BMAG |
| Wheel arrangement | 0-8-0 (Eight-coupled) |
| Gauge | 1,520 mm (Russian broad gauge) |
Dimensions and weights
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Length | 18.69 m |
| Length loco | 9.67 m |
| Wheelbase | 3.89 m |
| Rigid wheelbase | 3.89 m |
| Empty weight | 47 t |
| Service weight | 54 t |
| Adhesive weight | 54 t |
| Axle load | 13.5 t |
Boiler
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Grate area | 1.85 m² |
| Firebox surface | 10.7 m² |
| Tube heating surface | 117.5 m² |
| Evaporative heating surface | 128.2 m² |
| Superheater surface | 26.9 m² |
| Total heating surface | 155.1 m² |
Power plant
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Driver diameter | 1,200 mm |
| Boiler pressure | 11.5 bar |
| Expansion type | simple expansion |
| Cylinders | two, 550 x 650 mm |
Power
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Power source | steam |
| Estimated power | 625 kW (850 PS) |
| Top speed | 55 km/h |
| Starting effort | 160.2 kN |
Calculated values
| Property | Imperial Russian Railways series О О[h]п[/h] |
|---|---|
| Factor of adhesion | 1 : 3.31 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 11.6 kW/t |
| Heating Surface Equivalent | 235.5 m² |
| Cylinder volume/HSE | 1 : 1,311.50 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 21.57 |
| Grate area/Heating surface | 1 : 83.84 |
| Firebox/Tube surface | 1 : 10.98 |
| Total/Superheater | 1 : 4.77 |
