Co-Bo
Encyclopedia
In the UIC classification
, the Co-Bo or Co′Bo′ wheel arrangement features two uncoupled bogie
s. The "Co" bogie has three driven axles and the "Bo" bogie has two.
The British Rail Class 28
is the first (and only) UK locomotive with a Co-Bo wheel arrangement. Other examples worldwide include the class DE10
and DE11 diesel-hydraulic locomotives in Japan
.
Some Engerth
steam locomotives were built to the Fink system, with the four trailing wheels driven by a crankshaft and connecting rods, thus making them 0-6-4-0Ts instead of 0-6-4
Ts.
BoCo is a fictional Co-Bo locomotive, a British Rail Class 28
. The locomotive appeared in the Thomas the Tank Engine
book Main Line Engines.
UIC classification
The UIC classification of locomotive axle arrangements describes the wheel arrangement of locomotives, multiple units and trams. It is set out in the International Union of Railways "Leaflet 650 - Standard designation of axle arrangement on locomotives and multiple-unit sets". It is used in much...
, the Co-Bo or Co′Bo′ wheel arrangement features two uncoupled bogie
Bogie
A bogie is a wheeled wagon or trolley. In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage/car or locomotive, or sprung as in the suspension of a caterpillar...
s. The "Co" bogie has three driven axles and the "Bo" bogie has two.
The British Rail Class 28
British Rail Class 28
The British Rail Class 28 diesel locomotives, or 'Metrovicks' as they were popularly known, were built as part of the British Railways 1955 Modernisation Plan. The locomotives had a Co-Bo wheel arrangement – unique in British Railways practice though not uncommon in other countries, notably Japan...
is the first (and only) UK locomotive with a Co-Bo wheel arrangement. Other examples worldwide include the class DE10
JNR Class DE10
The DE10 is a class of Japanese C-B wheel arrangement diesel-hydraulic locomotives. 708 locomotives were built between 1966 and 1978.-DE10-0 subclass:158 DE10-0 locomotives were built with steam heating boilers for passenger use....
and DE11 diesel-hydraulic locomotives in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
Some Engerth
Engerth locomotive
The Engerth locomotive was a type of early articulated steam locomotive designed by Wilhelm Freiherr von Engerth for use on the Semmering Railway in Austria.- Designer :...
steam locomotives were built to the Fink system, with the four trailing wheels driven by a crankshaft and connecting rods, thus making them 0-6-4-0Ts instead of 0-6-4
0-6-4
Under the Whyte notation for the classification of steam locomotives, 0-6-4 represents the wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles, and four trailing wheels on two axles....
Ts.
BoCo is a fictional Co-Bo locomotive, a British Rail Class 28
British Rail Class 28
The British Rail Class 28 diesel locomotives, or 'Metrovicks' as they were popularly known, were built as part of the British Railways 1955 Modernisation Plan. The locomotives had a Co-Bo wheel arrangement – unique in British Railways practice though not uncommon in other countries, notably Japan...
. The locomotive appeared in the Thomas the Tank Engine
Thomas the Tank Engine
Thomas the Tank Engine is a fictional steam locomotive in The Railway Series books by the Reverend Wilbert Awdry and his son, Christopher. He became the most popular character in the series, and the accompanying television spin-off series, Thomas and Friends.Thomas is a tank engine, painted blue...
book Main Line Engines.