That time the Air Force landed bombers on tank treads

During the Cold War, the U.S. Air Force experimented with a seemingly crazy idea for dispersing the weight of their heaviest bomber across…

This experimental WWII tank was like a Sherman on steroids

At the onset of WWII, Germany arguably had the strongest tanks in the world. Meanwhile, many of Great Britain’s tanks like the early…

America’s first true heavy tank was bristling with firepower

WWI saw the introduction of the tank on the battlefield. Tank technology evolved during the interwar period with stronger armor, better mobility, and…

This amphibious WWII tank could be launched from a submarine underwater

The Imperial Japanese military’s structure during WWII can be considered unorthodox by modern standards. For example, its navy (IJN) crewed and fielded amphibious…

Why German vehicles had textured camouflage during WWII

Keen-eyed history enthusiasts may notice a textured, striped camouflage on German WWII vehicles. In fact, the distinctive visual can be used to identify…

Mitsubishi Kasei 22, Ha 32 Model 22 (MK4Q), 2-Row, Radial 14 Engine

    Object Details Manufacturer Mitsubishi Jukogyo K. K. Physical Description Type: Reciprocating, 14 cylinders, 2-rows, radial, air-cooled Power rating: 1,361 kW (1,825…

Menasco 2-544 Unitwin Aircraft Engine

Albert (Al) S. Menasco got his start in the aircraft engine business in 1926 when he was tasked with settling the estate of…

Mathis Vega 42-Cylinder Aircraft Engine

Émile E. C. Mathis was a French automobile dealer who began manufacturing cars under his own name in 1910. Mathis was based in…

Pennsylvania Railroad 6-4-4-6 S1 Locomotive

The Pennsylvania Railroad S1 engine 6100 in February 1939, shortly after completion. The S1 was the longest and heaviest rigid frame reciprocating steam…

Union Pacific 4-8-8-4 Big Boy Locomotive

For some time, locomotives of the Union Pacific Railroad (UP) had struggled to climb the Wasatch mountains between Ogden, Utah and Green River,…

Klöckner-Humboldt-Deutz (KHD) Dz 700, Dz 710, and Dz 720

The German engine manufacturer Deutz AG can trace its roots back to the inventor of the four-stroke internal combustion engine, Nicolaus Otto. Gottlieb…

Lorraine-Dietrich ‘W’ Aircraft Engines

In the early 1900s, Lorraine-Dietrich was a French manufacturer of wagons, rail equipment, and automobiles. During World War I, the company’s factory in…