The Speed Mirages are among the last mortar headds that Amaterasu designed for his Mirage Corps. Apparently, Amaterasu felt that current mortar headd configurations weren’t suitable for space combat and designed some specifically for that purpose. He came up with two designs: the S-type Mirage and the S2 Mirage. The S2 was built for high-speed atmospheric flight as well as space combat and included both a space-fighter mode as well as the typical humanoid configuration. Thus Amaterasu created a transformable mortar headd, unique amongst the galaxy’s Electric Knights.
Note: the Speed Mirage is similar in design and function to another Nagano-designed mecha from the anime Heavy Metal L-Gaim: the L-Gaim Mk2, which was also capable of transforming to a fighter mode.
Special thanks to Nu Soard Graphite for the mortar headd profile.