... in the early Jet-Age the British has the lead. Introduced at the end of WWII the de Havilland "Vampire" was a zippy little number. Here is the trainer version. The Brits liked to seat their student and instructor side-by-side as opposed to the US practice of one-behind-the other. (easier to hear the screams and cursing?) A popular export, the "Vampire" soldiered on until 1979.