* May 3-General Motors Electro-Motive Division produces its first six-axle freight diesel locomotive, an SD7.

* October – Cuban National Railways purchases its first six-axle GE diesel locomotives ( mostly GE C30-7 models ) secondhand from Mexican railroads.

The EMD SDP45 was a six-axle, C-C, diesel locomotive built by General Motors ' Electro-Motive Division of La Grange, Illinois.

The EMD SD45 is a six-axle diesel locomotive built by General Motors Electro-Motive Division between December, 1965, and December, 1971.

The EMD SD38-2 is a six-axle diesel locomotive built by General Motors Electro-Motive Division ( EMD ) from 1972 to 1979.

In British Rail days most diesel locomotives were built to a maximum axle load of so the maximum locomotive weight was for a four-axle locomotive and for a six-axle one.

After the railroads dieselized, heavy duty diesel locomotives ( typically six-axle units, to improve adhesion ) were used for the drag freights.

An EMD SD40A is a six-axle diesel locomotive built by General Motors Electro-Motive Division between 1969 and 1970.

also had a six-axle narrow gauge diesel locomotive (# 3000 ) for trial use in Durango in the 1950s which saw limited use.

The C620 would have been a 2, 000-horsepower, six-axle locomotive, powered by the same engine as the C420.

The ALCO Century 630 was a six-axle, diesel-electric locomotive built between 1965 and 1967.

The ALCO Century 628 was a six-axle, diesel-electric locomotive.

In terms of sales, the SD24 was only a moderate success, and few had long service lives in SD24 configuration ( though a few rebuilds are still in operation ), but the SD24 was a milestone in EMD locomotive development and the forerunner to today's high-powered six-axle locomotives.

Some railroads emulated this concept by using two GP40s, then swapping in six-axle Dash 2 electrical cabinets, and then connecting the GP40s to a double-ended slug rebuilt from an old locomotive.

These would be GTW ’ s first six-axle locomotives and most would last on GTW for at least four decades.

Due to the mainstream focus of railroads on big powerful six-axle units, the GP60 will most likely be the last new EMD " Geep ".

A double-ended MATE ( a MATE with connections on both ends ) turns two four-axle locomotives into the equivalent of two fully fledged six-axle locomotives.

Along a small fleet of HEP-equipped EMD SD70MAC locomotives operating on the Alaska Railroad, the F40Cs are the last six-axle passenger locomotives in daily service in North America.

In the UK, two wheels bolted to the same hub are classed as a single wheel, therefore a standard six-axle articulated truck is considered to have twelve wheels, even though it has twenty tyres.

The U50 is sometimes inaccurately referred to as the U50D, a back-formation from the U50C name given to the six-axle units.

However, after a series of derailments involving Amtrak SDP40F units that were equipped with " hollow bolster " HT-C trucks, applied only to the SDP40F, Conrail ordered the SD40-2 units and several orders of SD50s with the older Flexicoil trucks, but the fate of the HT-C truck was vindicated, and this truck ultimately went under most 40 Series, 50 Series and 60 Series six-axle locomotives, and this truck is still found under many remanufactured locomotives.

These included six-axle models SD38, SD40, SDP40 and SD45. The SD39 was added to the EMD catalog in 1968.

* Forty type EN94 six-axle articulated electric units, built between 1969 – 1972 in Wrocław and normally operated in pairs.

The U25C was General Electric's first six-axle road switcher intended for the United States domestic market.

The SD40-2 was first introduced in January 1972 as the mid-range offering in EMD's six-axle " Dash-2 " series, competing against the GE U30C and the MLW M630.

Budd-patented processes and designs were also used in France and Belgium after World War II to construct SNCF electric-powered multiple-unit cars, push-pull suburban trainsets, Wagons-Lits sleeping cars and even a small class of SNCF and SNCB four-current six-axle high speed electric locomotives for Trans Europ Express service between Paris, Brussels and Amsterdam.

These six-axle hood unit road switchers, known as Train Masters were deployed in the United States and Canada during the 1950s.

These included six-axle models SD38, SDP40 and SD45, in addition to the SD40.

These included six-axle models SD38, SD40 and SD45, in addition to the SDP40.

The first locomotive with a diesel engine also appeared.

* EMC E2, an early American passenger-train diesel locomotive

Three body styles of diesel locomotive: cab unit, hood unit and boxcab | box cab.

British Rail figures showed the cost of crewing and fuelling a steam locomotive was some two and a half times that of diesel power, and the daily mileage achievable was far lower.

In contrast, a typical diesel locomotive requires no more than eight to ten hours of maintenance per month.

* EMC E1, a diesel locomotive

Tom Swift and His Wizard Camera ( 1912 ) features a portable movie camera, not invented until 1923, and Tom Swift and His Electric Locomotive ( 1922 ) was published two years before the Central Railroad of New Jersey placed the first diesel electric locomotive into service.

The show included the use of a steam locomotive pulling one of the original carriages from the 1970s film ( propelled by a diesel ).

Diesel-electric multiple units ( DEMUs ) have a diesel engine that drives a generator producing electricity to drive traction motors in a similar fashion to a diesel-electric locomotive.

In August 2006 it was announced that Amtrak wants the State of Vermont to experiment with DMUs on the state-subsidized Vermonter line from New Haven north to St. Albans to replace the less efficient diesel locomotive trainsets currently used.

In 1952 Erie closed the roundhouse, as it converted its steam locomotive roster to diesel locomotives.

A diesel locomotive was obtained in 1929 to work this section and details are in Ravenglass and Eskdale Railway locomotives.

A further addition was made in 1980 when the company constructed the B-B diesel locomotive Lady Wakefield.

Unlike a diesel locomotive or electric locomotive, the steam locomotive only works when its powerplant ( the boiler, in this case ) is fairly level.

It was a G12 locomotive that was converted to hybrid by using a 200KW diesel generator and batteries and also was equipped with 4 AC traction motors ( out of 4 ) retrofited in the cover of the DC traction motors.

Variants of the typical diesel electric locomotive include the Green Goat ( GG ) and Green Kid ( GK ) switching / yard engines built by Canada's Railpower Technologies.

Dutch Railways NS 6400 Class | 6400 Class diesel locomotive at Amersfoort station

* 2200 Class: Widely used diesel locomotive.

* 2400 Class: Widely used diesel locomotive.

This prototype diesel locomotive, no.

* 2900 Class: This diesel locomotive was purchased by NS from the Statemines ( series 151-155 ) for " Spoorslag ' 70 ".

The vacuum brake is a little simpler than the air brake, with an ejector with no moving parts on steam engines or a mechanical or electrical " exhauster " on a diesel or electric locomotive replacing the air compressor.