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![Two T-50 trainers take off from the 1st Fighter Wing base of the Air Force in Gwangju in early May this year. The T-50 trainers are domestic supersonic advanced trainers from which the T-50i trainers are modeled. [YONHAP]](https://image.koreajoongangdaily.com/10763992.jpg?imageId=10763992&width=240&height=184&format=webp&format=jpg)