Now THAT's a Narwhal
Oh man, I have waited so long to see this in SH4 ... and now I will have the full summer holidays to play V-Boat careers
EDIT:
Forgot to add: As you can see, this unit received an aditional external torpedo tube at each side, which are visible right below the deck, and way above the normal 2 ones. (Can also be seen in the pic in my signature)
AFAIK those tubes are not reloadable -only at base-. When surfaced it seems also that the torpedoes will "fall" to teh sea as if shot from an S-Boat.