A surviving Royal Oak becomes a valuable convoy battleship

How would the war change if U-47 failed to sink HMS Royal Oak at Scapa Flow?

Britain would gain a recently modernized battleship for convoy and northern duties, freeing other heavy units without making Royal Oak a Mediterranean fast-fleet ship.

Royal Oak was not simply an obsolete survivor when U-47 entered Scapa Flow; she had recently completed a major refit and was among the strongest R-class ships. If the attack failed, the Royal Navy would gain another battleship for tasks that did not require high speed. Her most likely contribution would be convoy escort and northern operations, including possible later Arctic convoy duty. The panel rejects sending her to the Mediterranean because British deployment choices there favored different ships. Her survival would therefore free other capital ships through force multiplication rather than transform fleet tactics on its own.