Braniff introduced Jet service on December 15, 1959 with a flight from Love Field to Idewild. Prior to delivery, Braniff's first 707 crashes in October, 1959 with on a training flight. Service then began with just 3 707-227s. Braniff's 707s had upgraded Pratt Jt-4A powerplants principally for its South American "hot and high" schedules.