Geography decides the fate of a Polish auxiliary carrier

Would a Polish auxiliary carrier help in 1939, be used by Germany, or be scuttled?

It depends on location: a ship trapped within German reach risks capture or scuttling, while one outside the Baltic could escape into British-supported service.

The ship's location at the outbreak of war is the decisive variable. A carrier left where German forces could seize her would have to be denied to them, while the Germans would try to capture and employ any usable hull. A vessel already beyond the Baltic could instead join the Polish forces operating with British support. Strategic geography can matter more than a small navy's ownership of an unusual platform.