12. Talon T-38C
Joined the Service in 1959 Not retired: N/A $756 million was spent. The T-38 Talon is a twin-engine, supersonic jet trainer. It holds the record for the largest production number of any jet of its type and was the world’s first supersonic jet trainer.
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Encourages deliberate simplification.
Suggests mindful iteration cadence.
This anticipates drift risks.