| Powertype: | Steam |
| NER Class P1 LNER Class J25 | |
| Designer: | Wilson Worsdell |
| Builder: | NER Gateshead Works (80) NER Darlington Works (40) |
| Builddate: | 1898-1902 |
| Totalproduction: | 120 |
| Whytetype: | 0-6-0 |
| Driverdiameter: | 4feet |
| Locoweight: | 39.55LT |
| Fueltype: | coal |
| Cylindercount: | two inside |
| Cylindersize: | 18.5inchesx26inchesin (xin) |
| Boilerpressure: | 160psi |
| Tractiveeffort: | 21905abbr=onNaNabbr=on |
| Operatorclass: | NER: P1; LNER: J25 |
| Powerclass: | LNER: 4; GWR: A; BR: 3F |
| Axleloadclass: | LNER/BR: 3; GWR: Yellow |
| Withdrawndate: | 1950-1963 |
| Disposition: | All scrapped |
The NER Class P1 (LNER Class J25) was a class of 0-6-0 steam locomotives of the North Eastern Railway.[1] [2] Class P1 was a development of Class P, having a boiler four inches longer, and a firebox six inches longer. To accommodate these, the wheelbase was increased by nine inches. The cylinder stroke was also increased by two inches. None survived into preservation.
A total of 120 was built at the North Eastern Railway's locomotive workshops at both Gateshead and Darlington, between 1898 and 1902, in six batches of 20. Their numbers were 1961-2000, 2031–80, 2126-42 with the remainder scattered between 25 and 1743.
All passed to the London and North Eastern Railway (LNER) in 1923, and their NER numbers were retained, but they were placed in LNER Class J25.[3]
Seventy-six locomotives survived into British Railways (BR) ownership in 1948. Of these, 64 were given BR numbers, being the 1946 LNER numbers increased by 60000.