During the development of both each game of World of .. series (all being on different stages, for sure) we have gathered lots of curious materials on tanks, aircraft, and ships. Our in-house military experts are working in archives of many countries, eg among the team in Russia we have got proficient Yuriy Pasholok, a complete military addict, who has access to the Central Archives of Ministry of Defense (see those red "ЦАМО РФ" letters on the images below) containing some great stuff. Will be sharing some of those from now on.
Above is the order on research and future production of 57mm automatic gun for light tank destroyer - SU-76M. The vehicle was also intended as anti-infantry one. The document dates back to May of 1945.
Basic gun requirements are as follows:
- Caliber - 57mm
- Muzzle velocity - 1000 m/s or 3280 fps
- Vertical elevation - -10 - +15 deg
- Horizontal sector - +/- 15 deg
- RoF - 70-80 rpm
- Should be serviced by 1 loader and 1 gunner
- Loading - both manual and automatic
It was supposed to be not a self-propelled anti-aircraft weapon, but a tank destroyer, somewhat close to basic SU-76 with S-60
Approximately this way: