I've tried it several times - just for the Hell of it, usually when I've completed an assigned patrol in that neck of the woods - and failed more times than I've succeeded ( and, "Yes" I always saved-game before attempting it). The key is to remain undetected. Once they know you're there, chances are you're history. With so little room for manouevre, the need to avoid giving them a precise fix on your position and several Tommies hunting you simultaneously it's usually "Auf wiedersehen und gute nacht!"
I had a few days in Gibraltar in September and, having seen the Straits for myself now I find it difficult to believe that anything the British didn't want to get through could do so. I met an ex RN officer who's retired to Gib. He was in Destroyers ( post War ) and summed up any attempt by a U-Boat to get through the Straits of Gibraltar during WWII as " a remarkably elaborate way of committing suicide."
|