Lockheed’s engineers built the J58 engine to do the impossible, operate as both a jet and a ramjet. At Mach 3 and 85,000 feet, it pushed the SR-71 through temperatures that melted titanium and tested ...

It's really hard to get a new fighter jet design off the ground. Given design challenges and costs it involves, it's amazing ...

The emergence of the Russian "turtle tank" near Krasnohorivka in April 2024 revealed a desperate, yet surprisingly effective, tactical response to the dominance of Ukrainian FPV drones. This bizarre ...