Fuel or Speed
I have always wondered what U-Boat Caption did during the war on the way back to base after a patrol.
a) Travel back to base as fast as they could, base on there able fuel to minmum the turn-a-round between patrols.
or...
b) Travel back at slower speeeds to safe fuel for the war.
Which was more important, saving fuel or a quicker turn-a-round?
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