The Cessna T-37 was the primary trainer plane for fighter pilots in the US military for over 50 years. The planes were rolled out in 1954, and were popular with instructors because of the side by side seating. The planes were known for making a high pitch whistle noise, and were sometimes called ‘The Tweet,’ ‘Tweety Bird’ and even ‘Screamin’ Mimi.” The T-37 had a very poor safety record, though some attribute this to the fact that it was so often used to train inexperienced pilots.