The GE B30-7 diesel locomotive

Diesel locomotive

A diesel locomotive is a type of railroad locomotive in which the prime mover is a diesel engine, a reciprocating engine operating on the Diesel cycle as invented by Dr. Rudolf Diesel...

 model was offered first by GE

GE Transportation Systems

GE Transportation, formerly known as GE Rail, is a division of General Electric. The organization manufactures equipment for the railroad, marine, mining, drilling and energy generation industries. It is based in Erie, Pennsylvania. Locomotives are assembled at the Erie plant, while engine...

 in 1977, featuring a 16 cylinder

Cylinder (engine)

A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work...

 motor. It is 61 ft 2 in long. A change to the original B30-7 was using the 12 cylinder FDL rated at 3000 horsepower, resulting in a B30-7A, B30-7A1 and a cabless B30-7A .

B30-7As were built only for the Missouri Pacific Railroad

Missouri Pacific Railroad

The Missouri Pacific Railroad , also known as the MoPac, was one of the first railroads in the United States west of the Mississippi River. MoPac was a Class I railroad growing from dozens of predecessors and mergers, including the St. Louis, Iron Mountain and Southern Railway , Texas and Pacific...

 and are externally identical to the 16 cylinder version B30-7.

B30-7A1s were built only for the Southern Railway

Southern Railway (US)

The Southern Railway is a former United States railroad. It was the product of nearly 150 predecessor lines that were combined, reorganized and recombined beginning in the 1830s, formally becoming the Southern Railway in 1894...

.

Cabless

B unit

A "B" unit, in railroad terminology, is a locomotive unit which does not have a driving cab, or crew compartment, and must therefore be controlled from another, coupled locomotive with a driving cab . The term booster unit is also used. The concept was largely confined to North America...

 B30-7A were built only for the Burlington Northern Railroad

Burlington Northern Railroad

The Burlington Northern Railroad was a United States-based railroad company formed from a merger of four major U.S. railroads. Burlington Northern operated between 1970 and 1996....

.

Original owners

Railroad	Quantity	Road numbers	Notes
Burlington Northern Railroad Burlington Northern Railroad The Burlington Northern Railroad was a United States-based railroad company formed from a merger of four major U.S. railroads. Burlington Northern operated between 1970 and 1996....	120	4000-4119	model B30-7A Cabless units
Chesapeake and Ohio Railway Chesapeake and Ohio Railway The Chesapeake and Ohio Railway was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P...	64	8235-8298
Missouri Pacific Railroad Missouri Pacific Railroad The Missouri Pacific Railroad , also known as the MoPac, was one of the first railroads in the United States west of the Mississippi River. MoPac was a Class I railroad growing from dozens of predecessors and mergers, including the St. Louis, Iron Mountain and Southern Railway , Texas and Pacific...	55	4800-4854	model B30-7A
St. Louis - San Francisco Railway	8	863-870
St. Louis Southwestern Railway St. Louis Southwestern Railway The St. Louis Southwestern Railway , known by its nickname of "The Cotton Belt Route" or simply Cotton Belt, was organized on January 15, 1891, although it had its origins in a series of short lines founded in Tyler, Texas, in 1870 that connected northeastern Texas to Arkansas and southeastern...	26	7774-7799
Seaboard Coast Line Railroad Seaboard Coast Line Railroad The Seaboard Coast Line Railroad was a former Class I railroad company operating in the Southeastern United States beginning in 1967. Its passenger operations were taken over by Amtrak in 1971...	17	5500-5516	Family Lines Paint
Southern Pacific Railroad Southern Pacific Railroad The Southern Pacific Transportation Company , earlier Southern Pacific Railroad and Southern Pacific Company, and usually simply called the Southern Pacific or Espee, was an American railroad....	84	7800-7883
Southern Railway Southern Railway (US) The Southern Railway is a former United States railroad. It was the product of nearly 150 predecessor lines that were combined, reorganized and recombined beginning in the 1830s, formally becoming the Southern Railway in 1894...	22	3500-3521	model B30-7A1