As part of it's Air Corps investment the DDS is refurbishing it's fleet of 57 F-10A Shark fighter bombers. The work, which will bring the aircraft to F-10A2 standard, includes new avionics, night mode attack, a modular ECM system, an improved fire control system, a modified wing and a new fuel system that increases range by 12%. The engines will also be modified to FT6809GX4-II standard which increases thrust.
The newbuild F-10S Shark 2100 is a much more radical change, the aircraft has been redesigned around the new FT8085GX5 turbofan and is a sleeker more potent bird. The fuselage has been redesigned with a larger weapons bay and more fuel. The flying surfaces have also been modified. Avionics is largely as the F-10A2 but due to the extra room there is more ECM/EW equipment carried.
The small fleet of TF-10A trainers will be refurbished at a later stage. As yet there has been no word of a trainer version of the F-10S.