British Rail 11001
11001 was one of the first British Railways diesel locomotives. It was built in 1949 at British Railways' Ashford Works. It was designed by O. V. S. Bulleid when he was Chief Mechanical Engineer of the Southern Railway. It was powered by a Paxman RPH Series 1 engine, capable of delivering 500 bhp at 1,250 rpm. It was driven via a Vulcan Sinclair fluid coupling to an SSS (Synchro-Self-Shifting) Powerflow gearbox. The gearbox provided three forward and reverse gears in either high or low range. It gave a top speed ranging from 5 mph (8 km/h) in 1st gear, low range up to 36 mph (58 km/h). It had an 0-6-0 wheel formation.
| British Rail 11001 | |
| Power type | Diesel-mechanical |
|---|---|
| Builder | British Railways’ Ashford Works |
| Order number | 3410 |
| Build date | 1949 |
| Total production | 1 |
| Configuration | 0-6-0 dm |
| UIC classification | C |
| Gauge | Lua error in package.lua at line 80: module 'Module:Track gauge/data' not found. |
| Wheel diameter | 4 feet 6 inches (1.37 m) |
| Locomotive weight | 49.45 long tons (50.24 t) |
| Prime mover | Paxman RPH Series 1 |
| Transmission | Mechanical, SSS Powerflow 3-speed gearbox |
| Power output | Engine: 500 brake horsepower (370 kW) |
| Tractive effort | 33,500 pounds-force (149 kN) |
| Train heating | None |
| Axle load class | Route availability |
| Retired | August 1959 |
| Disposition | Scrapped, December 1959 |
