The Grumman F-11 Tiger was the US Navy’s first supersonic fighter jet. It came equipped with four Colt Mark-12 cannons that fired 20mm projectiles at more than 1000 metres per second. Grumman F-11 Tiger, serial number 138620 In September 1956 Thomas W. Attridge, a Grumman test pilot, was flying Tiger #620 in a test flight … Continue reading The plane that shot itself down