Ollantaytambo: The Inca Fortress That Defied Conquistadors

Updated 31 May, 2024 - 19:06 Robbie Mitchell Getting your Trinity Audio player ready... Hidden away in Peru’s…

Continental Hyper Cylinder and the O-1430 Aircraft Engine

In the late 1920s, British engine expert Harry R. Ricardo hypothesized that the spark-ignition internal combustion engine with poppet valves had reached its…

Lycoming O-1230 Flat-12 Aircraft Engine

In the late 1920s, the Lycoming Manufacturing Corporation of Williamsport (Lycoming County), Pennsylvania entered the aircraft engine business. At the time, Lycoming was…

Lycoming XH-2470 24-Cylinder Aircraft Engine

The Lycoming Division of the Aviation Manufacturing Corporation was located in Williamsport (Lycoming County), Pennsylvania. The company had started producing aircraft engines in…

Northrop N-23 Pioneer and N-32 / YC-125 Raider

As World War II wound down, Northrop looked for opportunities to expand its aviation products. At the time, various reports forecasted a need…

North American XA2J Super Savage Medium Bomber

At the close of World War II, the United States Navy lacked the ability to carry out a nuclear strike. The nuclear bombs…

Napier H-24 Sabre Aircraft Engine

Aircraft engine designer Frank Bernard Halford believed that an engine using a multitude of small cylinders running at a relatively high rpm would…

Packard X-2775 24-Cylinder Aircraft Engine

In late 1926, Lt. Alford Joseph Williams approached the Packard Motor Car Company (Packard) regarding a high-power engine for a special aircraft project.…

“Babe Ruth Days”1947 & 1948

Front page story, New York Times, April 28th, 1947.      It was April 1947.  America was about to begin its post-World War II economic boom. …

Daimler-Benz DB 605

The Daimler-Benz DB 605 is a German aircraft engine, built during World War II. Developed from the DB 601, the DB 605 was…

The Bombing of Berlin

The bombing of Berlin, aka the Berlin Air Offensive or Battle of Berlin (Air), was a sustained bombing campaign on the German capital…

Junkers Ju 88

Junkers Ju 88 North Africa Bundesarchiv, Bild 101I-417-1766-03A / Ellerbrock (CC BY-SA) The Junkers Ju 88 was a two-engined medium bomber plane used…