November 13, 2019 – Union Pacific’s 4014 Big Boy Locomotive approaches the Cantrell Road overpass as it departs Union Station at Little Rock, Arkansas northbound on the Little Rock Subdivision on a cold, crisp fall afternoon.

November 13, 2019 – Union Pacific’s Race Across the Southwest was on the move again as UP 4014 Big Boy heads through the countryside just north of Prescott, Arkansas on its way north on UP’s Little Rock Subdivision on a beautiful and cold fall morning. As you can tell the cold weather went a long way in producing beautiful plumes of steam!!

Did You Know: As if the 4000s weren’t big enough, the Union Pacific actually contemplated ordering five additional 4-8-8-4s that would be even larger. As World War II dragged on, the U.P. needed additional power on its line to Los Angeles through southwest Utah.

According to an article by historian and artist Gil Bennett (Classic Trains, Spring 2019), plans were on the drawing board to build #4025-4029. This third class of Big Boys was to measure 139 feet, 11 5/8 inches long and weighs just under 1.3 million pounds. All would be oil fired, instead of coal. The locomotive, itself, would be a foot longer than existing Big Boys. The tender was to be extended to just over 54 feet long in order to accommodate a 33,000 gal. water tank.

By comparison, #4014 and it’s tender is 132 feet, 9 7/8 inches long. Its water tank holds 24,000 gals. When the war ended in September 1945, at least a year, if not two, ahead of some predictions, the need for extra steam powered locomotives became a moot point.

The bigger Big Boy idea was dropped and the Union Pacific, like most other major railroads, concentrated on shifting to diesel power.

November 13, 2019 – Union Pacific 4014 Big Boy heads across the Ouachita River at Arkadelphia, Arkansas as it races north on the Little Rock Subdivision with it’s passenger train on UP’s Race Across the Southwest event.

Did you know: Union Pacific placed two orders for Big Boys. In 1941, they ordered 20. In 1944, five more were constructed. Their territory was basically the 435 miles between Cheyenne, Wyoming and Ogden, Utah. As a class, Big Boys ran until 1959, with some coming out of service earlier. Additionally, from 1941 to 1948, Big Boys only worked the 163 miles from Ogden to Green River, Wyoming.

From 1948 to 1959, they did not travel west of Green River. In their final years, the Big Boys only worked the 58 miles between Cheyenne and Laramie, Wyoming. Every one of the first 20 Big Boys tallied over one million miles of service. The last five had all traveled over 800,000 miles when they were retired. All this on a piece of railroad just over 400 miles long. For the record, #4017 traveled 1,052,072 miles during its life.

November 13, 2019 – Union Pacific’s Race Across the Southwest was on the move again as UP 4014 Big Boy departs Prescott, Arkansas on its way north on the UP Little Rock Subdivision on a beautiful and cold fall morning. As you can tell the cold weather went a long way in producing beautiful plumes of steam!!

Did you know: The Big Boy and its tender is only 100 feet shorter than a Boeing 747! It takes a sedan, a school bus, and a diesel engine to match the length of the Big Boy and its tender. With a height of 16 feet 4 inches, and a length of 132 feet, it falls short of the 232 foot Boeing 747 only by 100 feet!