Bulldog nose

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An EMD E7, one of the American "bulldog noses" Southern Pacific Shasta Daylight circa 1949.JPG
An EMD E7, one of the American "bulldog noses"

"Bulldog nose" is the nickname given, due to their appearance, to several cab-unit diesel-electric locomotives manufactured by GM-EMD and its licensees from 1939 to 1970. The term originated with EMD F-units, as well as later E-unit models such as the E7, E8, and E9. The bulldog nose design, which has been described as a "cultural icon", consists of two narrow front cab windows, swept back above a protruding nose section, usually with a prominent nose-top mounted headlight. This bore resemblance to a dog's face. It was a blunter and more vertical variation of the early "slant nose" style, which featured a more sloped front and often less protruding headlight. Examples of this included the EMC E1. [1]

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The style was highly influential in locomotive design internationally during the same period, with many diesel and electric locomotives in Europe and Australia among other places adopting similar styling during the 1940s, 50s and 60s.

Clyde Engineering derivatives

An ex New South Wales 42 class locomotive in Australia NSWR loco 4204 at Albury, ~1977.jpg
An ex New South Wales 42 class locomotive in Australia

In 1951, the EMD F7 series was modified by General Motors' Australian licence holder Clyde Engineering to fit Australian loading gauge and axle load constraints. [2] The 1,500  hp (1,100 kW) A1A-A1A Clyde/EMD ML1 locomotive was introduced on the Commonwealth Railways as the GM class, as well as exported to Pakistan. [3] It was further developed into the ML2 as a dual cab Co-Co locomotive, with a bulldog nose at each end, for Victorian Railways (VR), becoming that system's B class. [4]

A single-nose variant of the design, the EMD A7, with the revised 1,800  hp (1,300 kW) EMD 567C series engine, was introduced as the New South Wales Government Railways (NSWGR) 42 class, the VR S class, and an upgraded GM class. The design continued to be developed with the dual-cab EMD AJ16C, introduced on NSWGR as the 421 class, although, unlike the earlier ML2, the bulldog nose was only used on one end of the locomotives. [5]

1970 saw the introduction of the last new locomotive design in the world to utilise the F-series bulldog nose, the 3,000  hp (2,200 kW) EMD AT26C, designated by the Commonwealth Railways as the CL class. [6] [7] A final Australian iteration of the bulldog nose in Australian locomotive practice was the rebuild of the 30-year-old Victorian ML2 units into the EMD AAT22C-2R, designated as the V/Line A class. [4]

The NOHAB bulldog

Danske Statsbaner Class MY Locomotive MY 105.jpg
Danske Statsbaner Class MY

There were also a number of European "bulldog nose" locomotive classes, all of which were built by NOHAB or AFB (with license from EMD), also frequently referred to as "round noses". These were effectively Clyde's ML2 design modified to meet European clearance standards, and had a lower nose and deeper cab windows. [8]

The NOHAB-built classes include the DSB's class MY/MV and MX, the NSB's class D i3 and the MÁV class M61; NOHAB's design was later used by AFB, which built the NMBS/SNCB's class 52-54 and the CFL's class 1600.

The Henschel und Sohn Bulldog

Publication of Henschel und Sohn GM Derivates Henschel AA12.jpg
Publication of Henschel und Sohn GM Derivates

In October 1953 Henschel und Sohn of Kassel, Germany, joined the club of GM-EMD associates in Europe. Henschel und Sohn designed their version of a twin Cab Mainline Diesel locomotive for the Egyptian and Ghana Railways. Henschel produced AA12, TT12, AA16 and KK16 versions with Buffer and standard coupler. The ENR received 121 Locomotives, the Ghana State Railways received 18 Locomotives. [9]

Other such locomotives

Statens Jarnvagar Ra 988 SJ Ra near Gavle.jpg
Statens Järnvägar Ra 988

The SJ Class Ra (or Rapid) is an electric locomotive operated until 1996 by Statens Järnvägar of Sweden. Ten units were built by ASEA, two in 1955 and eight in 1961. Ra was used on express trains until the 1990s. In India, the railways used electric locomotives in the WCM series on its DC electricity lines in Maharashtra. WCM locomotives type 1 to 5 had bulldog noses. Type 6 had a different style. In the United Kingdom, the British Rail Class 55 'Deltic' diesels incorporated this design during their service between 1961 and 1981.

Related Research Articles

<span class="mw-page-title-main">EMD E7</span>


The E7 was a 2,000-horsepower (1,500 kW), A1A-A1A passenger train locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois. 428 cab versions, or E7As, were built from February 1945 to April 1949; 82 booster E7Bs were built from March 1945 to July 1948. The 2,000 hp came from two 12 cylinder model 567A engines. Each engine drove its own electrical generator to power the two traction motors on one truck. The E7 was the eighth model in a line of passenger diesels of similar design known as EMD E-units, and it became the best selling E model upon its introduction.

<span class="mw-page-title-main">EMC E4</span>

The EMC E4 was a 2,000 horsepower (1,500 kW), A1A-A1A passenger train-hauling diesel locomotive built by the Electro-Motive Corporation of La Grange, Illinois. All were built for the Seaboard Air Line Railway. The E4 was the fifth model in a long line of passenger diesels of similar design known as EMD E-units.

<span class="mw-page-title-main">EMC E3</span> American diesel-passenger locomotive

The EMC E3 is a 2,000 horsepower (1,500 kW), A1A-A1A diesel-electric passenger locomotive that was manufactured by Electro-Motive Corporation of La Grange, Illinois as part of the E Series of EMC/EMD diesel passenger locomotives. The EMC demonstrator #822 was released from La Grange for test on September 12, 1938. The cab version, or E3A, was manufactured from September 1938 to June 1940, and 17 were produced. The booster version, or E3B, was manufactured in March 1939 and September 1939, and 2 were produced. The 2,000 hp (1,500 kW) was achieved by putting two 1,000 horsepower (750 kW), 12-cylinder, model 567 engines in the engine compartment. Each engine drove its own electrical generator to power the traction motors. The E3 was the fourth model in a long line of passenger diesels of similar design known as EMD E-units.

<span class="mw-page-title-main">EMD E8</span> Model of 2250 hp American passenger cab locomotive

The EMD E8 is a 2,250-horsepower (1,678 kW), A1A-A1A passenger-train locomotive built by General Motors' Electro-Motive Division (EMD) of La Grange, Illinois. A total of 450 cab versions, or E8As, were built from August 1949 to January 1954, 447 for the U.S. and 3 for Canada. 46 E8Bs were built from December 1949 to January 1954, all for the U.S. The 2,250 hp came from two 12 cylinder model 567B engines, each driving a generator to power the two traction motors on one truck. The E8 was the ninth model in the line of passenger diesels of similar design known as EMD E-units. Starting in September 1953, a total of 21 E8As were built which used either the 567BC or 567C engines.

<span class="mw-page-title-main">EMD E9</span> Model of 2400 hp American passenger cab locomotive

The E9 is a 2,400-horsepower (1,790 kW), A1A-A1A passenger train-hauling diesel locomotive built by General Motors' Electro-Motive Division of La Grange, Illinois, between April 1954 and January 1964. 100 cab-equipped A units were produced and 44 cabless booster B units, all for service in the United States. The E9 was the tenth and last model of EMD E-unit and differed from the earlier E8 as built only by the newer engines and a different, flusher-fitting mounting for the headlight glass, the latter being the only visible difference. Since some E8s were fitted with this, it is not a reliable way to distinguish the two. The E9 has two 1,200 hp (895 kW), V12 model 567C engines, each engine driving one generator to power two traction motors.

<span class="mw-page-title-main">EMC E2</span>

The EMC E2 was an American passenger-train diesel locomotive which as a single unit developed 1,800 horsepower (1,300 kW), from two (2) 900 horsepower (670 kW) prime movers. These locomotives were typically operated as a unit set or ; where the three unit lashup developed 5400 horsepower. This was almost the ideal horsepower required for the tonnage of a 15 - 18 car passenger train, operated over the ruling grades of virtually all of the mileage between major American cities. The units were of the A1A-A1A wheel arrangement, and manufactured by Electro-Motive Corporation (EMC), later Electro-Motive Diesel (EMD) of La Grange, Illinois.

<span class="mw-page-title-main">EMD E-unit</span> American diesel-passenger locomotive

EMD E-units were a line of passenger train streamliner diesel locomotives built by the General Motors Electro-Motive Division (EMD) and its predecessor the Electro-Motive Corporation (EMC). Final assembly for all E-units was in La Grange, Illinois. Production ran from May 1937, to December, 1963. The name E-units refers to the model numbers given to each successive type, which all began with E. The E originally stood for eighteen hundred horsepower, the power of the earliest model, but the letter was kept for later models of higher power.

<span class="mw-page-title-main">EMC E1</span> Early American diesel-passenger locomotive

The EMC E1 was an early passenger-train diesel locomotive developing 1,800 hp, with an A1A-A1A wheel arrangement, and manufactured by Electro-Motive Corporation of La Grange, Illinois. They were built during 1937 and 1938 for the Atchison, Topeka and Santa Fe Railway for a new generation of diesel-powered streamlined trains. 8 cab-equipped lead A units and three cabless booster B units were built. The initial three locomotives were AB pairs built to haul the Santa Fe's Super Chief diesel streamliners, while the others were built as single A units to haul shorter trains. The locomotives were diesel-electrics with two 900 hp (670 kW) Winton 201-A engines each, with each engine driving its own generator to power the traction motors. The E1 was the second model in a long line of passenger diesels of similar design known as EMD E-units. All Winton 201A-engined Santa Fe passenger units, including the E1s, were extensively rebuilt into the 80-class E8M engines in 1952–53. These were similar to production E8 models, but derated to 2,000 hp so as not to burn out the early traction (axle) motors.

<span class="mw-page-title-main">EMC EA/EB</span>

The EMC EA/EB is an early passenger train-hauling diesel locomotive built from May 16, 1937, to 1938 by Electro-Motive Corporation of La Grange, Illinois for the Baltimore and Ohio Railroad. They were the first model in a long line of passenger diesels of similar design known as EMD E-units. Each locomotive unit developed 1,800 horsepower (1,300 kW) from two 900 hp (670 kW) Winton 201-A diesel engines, driving the wheels through an electric transmission—the generator driven by each engine provided current for traction motors. The locomotives were of A1A-A1A wheel arrangement—two three-axle trucks of which only the outer two axles were powered. Six two-unit 3,600 hp (2,700 kW) locomotives were produced, each consisting of a lead cab-equipped EA A unit and a cabless booster EB B unit. They were numbered 51 through 56; the A units bore the bare number and the B units the number followed by 'X'.

<span class="mw-page-title-main">Electro-Motive Diesel</span> American locomotive manufacturer

Electro-Motive Diesel is a brand of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. Formerly a division of General Motors, EMD has been owned by Progress Rail since 2010. Electro-Motive Diesel traces its roots to the Electro-Motive Engineering Corporation, founded in 1922 and purchased by General Motors in 1930. After purchase by GM, the company was known as GM's Electro-Motive Division. In 2005, GM sold EMD to Greenbriar Equity Group and Berkshire Partners, and in 2010, EMD was sold to Progress Rail, a subsidiary of the heavy equipment manufacturer Caterpillar. Upon the 2005 sale, the company was renamed to Electro-Motive Diesel.

<span class="mw-page-title-main">ALCO DL-109</span> Model of locomotive

The ALCO DL-109 was one of six models of A1A-A1A diesel locomotives built to haul passenger trains by the American Locomotive Company (ALCO) between December, 1939 and April, 1945. They were of a cab unit design, and both cab-equipped lead A units DL-103b, DL-105, DL-107, DL-109 and cabless booster B units DL-108, DL-110 models were built. The units were styled by noted industrial designer Otto Kuhler, who incorporated into his characteristic cab the trademark three-piece windshield design. A total of 74 cab units and four cabless booster units were built.

<span class="mw-page-title-main">NSB Di 3</span> Class of diesel–electric locomotives

NSB Di 3 is a class of 35 diesel–electric locomotives built by NOHAB for the Norwegian State Railways (NSB). The class was built between 1954 and 1969, and delivered in two series, Di 3a and Di 3b. They are based on the Electro-Motive Division F7 and are equipped with EMD 567 engines. They have a distinct bulldog nose and were numbered 602–633 (a-series) and 641–643 (b-series). The locomotives had a prime mover that gives a power output of 1,305 kilowatts (1,750 hp). The a-series has a Co′Co′ wheel arrangement, while the b-series has (A1A)(A1A). The b-series has higher top speed, but lower tractive effort.

<span class="mw-page-title-main">EMD G12</span> Locomotive class

The EMD G12 is a class of export locomotive built by GM-EMD, and its Canadian affiliate General Motors Diesel. In addition, Australian licensee Clyde Engineering built ten locomotives for New Zealand in 1957, five for Hong Kong, 23 for Queensland, fourteen for Western Australia and seven for BHP. Australian licensee Commonwealth Engineering also built 42 for Queensland Rail in 1964–1966. Many examples were built in the 1950-1960s for railroads around the world.

<span class="mw-page-title-main">DSB Class MY</span> Danish railways diesel-electric locomotive

The class MY is a class of diesel-electric locomotives built in the years 1954–1965 by NOHAB. A total of 59 units, numbered 1101–1159, were delivered to the Danish State Railways. Powered by GM-EMD engines, the locomotives represented a significant change in rolling stock policy — motive power had largely been sourced from within Denmark for several decades.

<span class="mw-page-title-main">Victorian Railways T class</span> Class of diesel locomotives used in Australia

The T class are a class of diesel locomotives built by Clyde Engineering, Granville for the Victorian Railways between 1955 and 1968.

<span class="mw-page-title-main">SJ T41</span> Swedish diesel-electric locomotive

T41 was a type of diesel-electric locomotive used by Swedish State Railways between 1956 and 1988 for secondary line services and later for shunting. It was built by Nydquist & Holm (NOHAB), who produced five locomotives under licence from General Motors Electro-Motive Division.

<span class="mw-page-title-main">Commonwealth Railways CL class</span> Australian diesel electric locomotive

The CL class is a class of diesel locomotives built by Clyde Engineering, Granville for the Commonwealth Railways in several batches between 1970 and 1972. The class was the last in the world to be built with the Electro-Motive Diesel bulldog nose but differed from previous builds in having a mansard roof.

<span class="mw-page-title-main">Commonwealth Railways GM class</span> Class of diesel locomotives

The GM class are a class of diesel locomotives built by Clyde Engineering, Granville for the Commonwealth Railways in several batches between 1951 and 1967. As of January 2014, some remain in service with Aurizon and Southern Shorthaul Railroad.

<span class="mw-page-title-main">New South Wales 79 class locomotive</span>

The 79 class is a diesel-electric locomotive built by General Electric, Erie, United States for the Department of Railways New South Wales in 1943.

<span class="mw-page-title-main">South Australian Railways 930 class</span> Class of Australian diesel-electric locomotives

The South Australian Railways 930 class was a class of diesel-electric locomotives built for the South Australian Railways between 1955 and 1967 by AE Goodwin, Auburn, New South Wales, the Australian licensee of the American Locomotive Company (Alco). Based on the Alco DL500B World series model, they were fitted with Alco 12-251B four-stroke V12 turbocharged diesel engines that developed 1600 horsepower for traction. The first six of the class had a driving cab at one end only; the remaining 31 locomotives had two. The latter series, up-rated, were the basis of the almost identical New South Wales 44 class, of which 100 were built from 1957.

References

Cab view of a Clyde derivative, B class. Victorian Railways B class cab.jpg
Cab view of a Clyde derivative, B class.
  1. Niedermeyer, Paul. "Trackside Classic: 1955 Union Pacific EMD E9 – The Last Of The Classic Diesel Streamliners". Curbside Classic. Retrieved 5 February 2022.
  2. Oberg, Leon (2007). Locomotives of Australia 1854-2007. Rosenberg Publishing. p. 250. ISBN   978-1-877058-54-7.
  3. Oberg, p. 251
  4. 1 2 Oberg, p.264
  5. "SRA: 421 Class". 2007-09-05. Archived from the original on 2008-07-19. Retrieved 2008-06-07.
  6. Oberg, p.360
  7. "AN: CL Class". 2007-09-05. Archived from the original on 2008-06-30. Retrieved 2008-06-07.
  8. "NOHAB-GM Foundation - Worldwide Historic Overview". 2006-01-10. Retrieved 2008-06-07.
  9. "Henschel KK16", Wikipedia (in German), 2021-11-09, retrieved 2024-12-21