11001 was one of the first
British Rail
British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British rai ...
ways
diesel locomotive
A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving whee ...
s, built in 1949 at British Railways'
Ashford railway works. It was designed by
Oliver Bulleid when he was Chief Mechanical Engineer of the
Southern Railway. It was powered by a
Paxman RPH Series 1 engine, capable of delivering at 1,250
rpm
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines.
Standards
ISO 80000-3:2019 defines a unit of rotation as the dimensionl ...
. 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, with top speed ranging from in 1st gear, low range up to . It had a 0-6-0 wheel formation, driven by
rod
Rod, Ror, Ród, Rőd, Rød, Röd, ROD, or R.O.D. may refer to:
Devices
* Birch rod, made out of twigs from birch or other trees for corporal punishment
* Ceremonial rod, used to indicate a position of authority
* Connecting rod, main, coupling, ...
s from a rear
jackshaft on the
final drive, and with Bulleid's favoured
BFB wheels.
Its main duties were on branch lines and shunting, working
dwindling goods services on the
Caterham line during the 1950s. It was allocated to Norwood Shed, but also has been photographed in Swindon. It was withdrawn in August 1959 and scrapped at Ashford Works in December.
Unusually, the locomotive's controls were laid out as in a
steam locomotive
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 (usually coal, oil or, rarely, wood) to heat water in the locomot ...
, possibly due to few drivers having experience with diesels at the time. There are no known photographs of the interior.
References
*
External links
*
*
* 11001
C locomotives
Individual locomotives of Great Britain
Railway locomotives introduced in 1949
Scrapped locomotives
Unique locomotives
Shunting locomotives
Standard gauge locomotives of Great Britain
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