An additional NC-123B was made use of for a radio relay aircraft about the Ho Chi Minh trail, with gear to go through the indicators from several sensors on the ground made to pick up enemy truck action.??i v?i nh?ng enthusiast hâm m? cu?ng nhi?t c?a b? môn th? thao vua thì vi?c theo dõi nh?ng thông tin soi kèo, nh?n ??nh tr??c m?i tr?n ??u l