If the yacht can get Swedish registration papers that can pass muster, get a new name and paint job, and Goring can hide from the RN or the USN boarding parties it can hide out in the fjords of Norway for the Summer until the heat dies down.
From there Goring can try for South America in a country that is willing to look the other way for a price and settle down in a remote area with lots of security and bodyguards to keep him safe, then he might get away.
But the extremely most likely outcome is that the yacht is seized by the RN or USN before it can get very far with Goring aboard, and whatever navy captures the yacht has a new ship for their museum.