Could a hypothetical Polish Mackensen-class battlecruiser have escaped to Britain?
Short answerYes, within the scenario, particularly with advance preparation and a refit that preserved its speed.
NotesThe hypothetical Polish battlecruiser could make a run for Britain, especially with preparations arranged in advance. The scenario assumes a moderate modernisation that preserves roughly 28 knots of speed. Reaching Britain would let the ship continue the war alongside the Royal Navy. The possibility of joining the Denmark Strait force then extends the acquisition scenario into a specific wartime operation.