Unbelievable: Here's T-38 Talon Twin-Jet Best Trainer Aircraft

The T-38A is a basic supersonic trainer aircraft and the AT-38B is the lead-in fighter trainer fitted with a centreline weapons station for practice bomb dispenser. 

The T-38 Talon is a twin-engine, high-altitude, supersonic jet trainer used in a variety of roles because of its design, economy of operations, ease of maintenance, high performance and exceptional safety record.

Source: NATIONAL DEFENSE