Tom Thumb was the first American-built steam locomotive to operate on a common-carrier railroad. It was designed and constructed by Peter Cooper in 1829 to convince owners of the newly formed Baltimore and Ohio Railroad (B&O) to use steam engines; it was not intended to enter revenue service. It is especially remembered as a participant in a legendary race with a horse-drawn car, which the horse won after Tom Thumb suffered a mechanical failure. However, the demonstration was successful, and the railroad committed to the use of steam locomotion and held trials in the following year for a working engine.
A 1927 replica of Tom Thumb, the first American-built steam locomotive
Locomotives sought by the Baltimore and Ohio Railroad, 1831
The Tom Thumb replica in action.
1831 drawing of a locomotive (likely the Tom Thumb) in Baltimore.
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels.
LNER Class A4 4468 Mallard is officially the fastest steam locomotive, reaching 126 mph (203 km/h) on 3 July 1938.
LNER Class A3 4472 Flying Scotsman was the first steam locomotive to officially reach 100 mph (160 km/h), on 30 November 1934.
The Salamanca locomotive
The Locomotion at Darlington Railway Centre and Museum