Su-57 Felon is a name the world is interested in, and all information related to this fifth-generation fighter is noticed. Accordingly, Russian military officials recently said that they are working to create a two-seat version of the Su-57. Various theories about its purpose and options for cockpit configurations have been discussed. Almost immediately drawings of a two-seat Su-57 appeared. It is reported that these sketches were designed by Japan’s military-loving community, but are also worth considering for reference. In which they suggested 5 variants of the fighter’s cockpit, including some rather original ones.