Korean State Railway Koroha class (고로하) | |
| Powertype: | Steam |
| Builder: | Kisha Seizō |
| Builddate: | 1924 |
| Totalproduction: | 3 |
| Whytetype: | 2-4-2T |
| Driverdiameter: | 1370mm |
| Length: | 9292mm |
| Height: | 4250mm |
| Weightondrivers: | 28t |
| Locoweight: | 43.85t |
| Fueltype: | Coal |
| Fuelcap: | 1.27t |
| Watercap: | 4.5m2 |
| Smalltubediameter: | 68 x 51mm |
| Largetubediameter: | 15 x 137mm |
| Boilerpressure: | 13kgf/cm2 |
| Firearea: | 1.12m2 |
| Tubearea: | 47.4m2 |
| Fireboxarea: | 5.6m2 |
| Superheaterarea: | 16.2m2 |
| Totalsurface: | 69.2m2 |
| Cylindersize: | 300mm457mm |
| Valvegear: | Walschaerts |
| Maxspeed: | 75km/h |
| Tractiveeffort: | 32kN |
| Operator: | Chosen Government Railway Korean State Railway |
| Operatorclass: | Sentetsu: ゴロイ KSR: 고로하 |
| Numinclass: | 3 |
| Fleetnumbers: | KSR: 고로하1 – 고로하3 |
The Goroi class (ゴロイ) was a class of steam tank locomotives of the Chosen Government Railway (Sentetsu) with 2-4-2 wheel arrangement.[1] The "Goro" name came from the American naming system for steam locomotives, under which locomotives with 2-4-2 wheel arrangement were called "Columbia".[2]
Three Goro-class locomotives were built in 1923 by Kisha Seizō of Japan for Sentetsu,[3] delivered in 1924.[1] Initially numbered 61-63, they received the ゴロイ1 through ゴロイ3 numbers in Sentetsu's general renumbering of 1938.[1]
After the partition of Korea, all three Goroi-class locomotives went to the Korean State Railway in North Korea, where they were designated 고로하 (Koroha) class and numbered 고로하1 through 고로하3.[4]
| Sentetsu running number | Postwar | |||||
|---|---|---|---|---|---|---|
| Original | 1938–1945 | Owner | Number | Builder | Year | Works number |
| ゴロ61 | ゴロイ1 | KSR | 고로하1 | Kisha Seizō | 1923 | 754 |
| ゴロ62 | ゴロイ2 | KSR | 고로하1 | Kisha Seizō | 1923 | 755 |
| ゴロ63 | ゴロイ3 | KSR | 고로하1 | Kisha Seizō | 1923 | 756 |
| bgcolor=#ededed colspan="6" | Total | 3 | ||||