Land speed record for rail vehicles World speed records Speed record of steam rail vehicles

| Speed | Date_ | Country | Train | Arr_ | Power_ | State_ | Comments_ |
|---|---|---|---|---|---|---|---|
| 202.6 km/h (126 mph) | 1938-07-03 | UK | LNER Class A4 No. 4468 Mallard | Loc | Steam | Unkn. | Downhill grade. Data indicates peak speed 202.6 km/h (126 mph), mean speed (half-mile) 201.2 km/h (125 mph). Mallard suffered an overheated crankpin during the run, but was repaired and returned to traffic within 9 days. |
| 200.4 km/h (125 mph) | 1936-05-11 | Germany | Borsig DRG series 05 002 | Loc | Steam | Unkn. | Level grade.[citation needed] |