SP E7A Daylight

SP E7A Daylight

EMD E7A

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. (Circa 1953 one more E7A was built by the Los Angeles General Shops of the Southern Pacific by rebuilding an E2A.) 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.

In profile the front of the nose of an E7A was less slanted than on earlier EMD passenger locomotives, and the E7, E8, and E9 units have been nicknamed bulldog nose units. Some earlier units were called shovel nose units or slant nose units.
In film
A Gulf, Mobile and Ohio Railroad E7A, #103-A, appears at the start and end of the 1967 film In The Heat of the Night.

A Southern Pacific E7A, #6001, is on the point of a train that figures prominently in The Hitch-Hiker, a popular 1960 episode of the anthology television series, The Twilight Zone, starring Inger Stevens. (According to the narration, Steven's character is said to encounter the train somewhere between Pennsylvania and Tennessee, yet the locomotive's number board shows that the train, #99, is the Coast Daylight, which travelled between Los Angeles and San Francisco.)

Surviving example
Ex-Pennsylvania Railroad E7A #5901 has been preserved by the Railroad Museum of Pennsylvania, in Strasburg, Pennsylvania. This locomotive has been cosmetically restored, and is currently on indoor display.
Type and origin
Power type Diesel-electric
Builder General Motors Electro-Motive Division (EMD)
Model E7
Build date February 1945 – April 1949
Total produced 428 A units, 82 B units
Specifications
Configuration:
​
• AAR A1A-A1A
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Wheel diameter 36 in (914 mm)
Minimum curve 21° (274.37 ft or 83.63 m radius)
Length 71 ft (22 m)
Width 10 ft 6 1⁄2 in (3.213 m)
Height 14 ft 11 in (4.55 m)
Loco weight A unit: 315,000 lb (143,000 kg), B unit: 290,000 lb (130,000 kg)
Fuel type Diesel
Prime mover (2) EMD 567A
RPM range 800
Engine type V12 Two-stroke diesel
Aspiration Roots-type supercharger
Displacement 6,804 cu in (111.50 L) each
Generator (2) EMD D-4
Traction motors (4) GM D7 or D17 or D27
Cylinders (2) 12
Performance figures
Maximum speed 85 mph (137 km/h)
Power output 2,000 hp (1,491 kW) total
Tractive effort 56,500 lb (25,600 kg) starting, 31,000 lb (14,000 kg) continuous
Career
Locale United States
Disposition One preserved in static display.

SP E7A Daylight
• config.txt 26.49KB
gm_angreen_body
angreen_gm12_sidegrill copy-angreen_gm12_sidegrill_opacity.texture.txt 92 bytes
angreen_gm12_sidegrill copy.tga 24.04KB
angreen_gm12_sidegrill_opacity.bmp 9.05KB
angreen_gma-angreen_gma.texture.txt 57 bytes
angreen_gma.tga 2.04KB
angreen_gmb-angreen_gmb.texture.txt 57 bytes
angreen_gmb.tga 8.04KB
cupla.texture.txt 28 bytes
cupla.tga 768.04KB
digit_1a.texture.txt 31 bytes
digit_1a.tga 1.04KB
digit_1b.texture.txt 31 bytes
digit_1b.tga 4.04KB
digit_2a.texture.txt 31 bytes
digit_2a.tga 1.04KB
digit_2b.texture.txt 31 bytes
digit_2b.tga 4.04KB
digit_3a.texture.txt 31 bytes
digit_3a.tga 1.04KB
digit_3b.texture.txt 31 bytes
digit_3b.tga 4.04KB
digit_4a.texture.txt 31 bytes
digit_4a.tga 1.04KB
digit_4b.texture.txt 31 bytes
digit_4b.tga 4.04KB
digit_5a.texture.txt 31 bytes
digit_5a.tga 1.04KB
digit_5b.texture.txt 31 bytes
digit_5b.tga 4.04KB
digit_6a.texture.txt 31 bytes
digit_6a.tga 1.04KB
digit_6b.texture.txt 31 bytes
digit_6b.tga 4.04KB
env_glass.bmp 12.05KB
env_metal-env_metal.texture.txt 53 bytes
env_metal.bmp 12.05KB
env_metal.texture.txt 32 bytes
gm_angreen_a copy.texture.txt 40 bytes
gm_angreen_a copy.tga 1.00MB
gm_angreen_b copy.texture.txt 40 bytes
gm_angreen_b copy.tga 384.04KB
gm_angreen_b.texture.txt 40 bytes
gm_angreen_body.im 432.93KB
horn_support.bmp 3.05KB
horn_support.tga 6.04KB
light-light.texture.txt 45 bytes
light.bmp 2.05KB
light.texture.txt 28 bytes
light.tga 3.04KB
gm_cr_alpha_numbers
alphanumber_0a.tga 1.04KB
alphanumber_0b.tga 4.04KB
alphanumber_1a.tga 1.04KB
alphanumber_1b.tga 4.04KB
alphanumber_2a.tga 1.04KB
alphanumber_2b.tga 4.04KB
alphanumber_3a.tga 1.04KB
alphanumber_3b.tga 4.04KB
alphanumber_4a.tga 1.04KB
alphanumber_4b.tga 4.04KB
alphanumber_5a.tga 1.04KB
alphanumber_5b.tga 4.04KB
alphanumber_6a.tga 1.04KB
alphanumber_6b.tga 4.04KB
alphanumber_7a.tga 1.04KB
alphanumber_7b.tga 4.04KB
alphanumber_8a.tga 1.04KB
alphanumber_8b.tga 4.04KB
alphanumber_9a.tga 1.04KB
alphanumber_9b.tga 4.04KB
gm_cr_art
gm_cr_art_icon.texture.txt 77 bytes
gm_cr_art_icon.tga 32.04KB
gm_cr_shadow
black.texture.txt 28 bytes
black.tga 812 bytes
gm_cr_shadow.im 83.05KB
• sp daylight.jpg 28.62KB