Uzo - its use in real life and in SH3

[BulSoldier]

As I am playing GWX3 and OLCgold i have noticed something wrong about the surface attacks.I realised that i had to use the attack periscope in order to get solution and it would seems that the uzo doesnt have any use at all (or atleast i cant understand how it works).
So my question to the players playing both GWX3 and OLCgold , is there a way to get a solution from the uzo while comiting surface attacks, as i always have to either go to PD to get a soulution useing Attack periscope or use the same while surfaced.

I have noticed that the uzo has some scales but as mentioned above i have no idea do they have any real use for making firing solutions.

I however see that in RL the uzo was pretty much the same as attackperiscope appart from being mounted on the bridge use while surfaced.
http://www.uboat.net/forums/read.php?20,64031,64032