Why submariners could command early aircraft carriers

Why would a navy give a submariner command of an aircraft carrier?

It was not unusual: submariners understood torpedoes, which were the principal strike weapon of early carrier air groups.

Early naval aviation did not sit apart from the rest of the service, so officers crossed between specializations more readily than modern categories suggest. Several senior carrier officers had submarine backgrounds because the personnel system drew on the wider Navy for a new form of command. Submariners also understood torpedoes, which were the primary strike weapons of many early carrier air groups. That expertise gave them a relevant operational foundation even though flying and flight-deck management required additional knowledge.