However, some pictures indicates there is a gun? I've read some experiments has been done but what was the name of that system?
Some data founds on the web...
- Some claims about the capability
for the German Type 212 (batch 2) to carry a
retractable "Murena" recoilless 30-mm gun to engage surface targets, and the IDAS (interactive defense and attack system for submarines) missile system facilitating engagement of ASW helicopters.
- (for the Swedish A-26 SSK design): Able to carry 25-30mm Machine Guns (optional, likely a RWS)