Hi Ken.

Thanks for all the info.
I have wonderd for a really long time how it works but now iknow.
My dad and i talk about WW2 pretty muck becuase he was born same year as the war started 1939 and hes dady was involved here in sweden to be reddy if the war would come to close.
And my mums dady was involved for the finnish army. So i have alot of intresst in WW2 and especialy U-boats.

Best regards

Chippen