Jep, ok. Kan du förklara lite mera? Jag menar tårnet. På Engelska, naturlig...( = could you explain bit more?)
The tower or as it called the sail, we even use it in Norwegian.
Every submarines class in the world have there own style on how the sail should look like, it help with distinguish submarines, so when you see an submarine on the horizon, you can see if it's an Ohio class, Typhoon class, or an Ula class. just by looking on how the sail looks like. We in Scandinavia is used to that the sail have to be small and compact, but if you travel to other country's that doesn't have the same type of geographic like Norway for example, you will start to see that the sail tend to be quit different.
The sail on the shark class isn't that big, when you start thinking on what's inside it. For example, there can be an extra oxygen tank in there. there can also be facility for landing of special forces, or extra long periscopes. etc.