Don’t let its size fool you—the Sopwith Pup was one of the most agile and effective fighters of World War I. Armed with a single 7.7mm Vickers machine gun, this lightweight aircraft delivered deadly ...

The machine ... gun design in a basement flat in east London. One of Maxim's early prototypes could fire 666 rounds in a minute – around 11 bullets every second. In the battlefield conditions of ...