What would the Royal Navy look like if Ernest King became First Sea Lord with Reginald Henderson in charge of procurement?
Short answerIt would probably grow substantially, because both men emphasized preparation and King would redirect his fierce institutional loyalty toward the Royal Navy.
NotesIn the hypothetical, King and Reginald Henderson would both press hard for preparation, aviation, and a larger fleet. King's apparent hostility toward Britain followed his professional responsibility to the United States rather than an instinctive prejudice. As First Sea Lord he would therefore defend British naval power as fiercely as he defended American interests historically. King also respected competent Royal Navy officers such as Jellicoe even while clashing with other British leaders.