King George VI's possible naval career

Without the abdication crisis, how high might the future King George VI have risen in the Royal Navy?

He might have gained a major fleet command, but his discomfort with public speaking makes First Sea Lord unlikely.

George VI was a capable commander who could plausibly lead the Home Fleet or Mediterranean Fleet. The limiting factor is the highly public role of First Sea Lord. His well-known difficulty with public speaking would make that appointment unattractive and less likely.