D'OH!
That always happens when I pretend I know what I'm talking about.
I have been following WWII in real time + 60 years on a cool website called worldwar2.net. It was in Feb. 42 that the two FULL SIZED battleships eluded the Royal Navy and made it to safety in Kiel and Wilhelmshaven.
On 5 April 42 the Japanese are closing in on Bataan and the British lost several ships in action off Ceylon. Not a happy time for the Allies.
Ah yes, the famous dash up the channel. Caught the Brits by surprise.