Wu Tsai-hsi was a U-2 spy plane pilot. His younger brother, Wu Tsai-chi, was deputy head of air force intelligence when discharged from active service; his cousin, Wu Hsin-chi, was lost in 1969 flying an F-100 over Penghu; his uncle, Wu Wan-chi, is at present working for China Airlines. All of them entered the air force thanks to the influence of Wu Tsai-hsi.
吳載熙曾是「黑貓中隊」U-2 偵察機飛行員；他的弟弟是為甫自空軍情報署副署長一職退役的吳載奇、堂弟吳新吉民國五十八年駕 F-100 在澎湖失事殉職、堂叔吳萬吉現任職於華航公司，他們都是因受了吳載熙影響，而加入空軍的行列。