Captain Wentworth / Captain Aubrey

I have started reading Persuasion. I know a couple of Jane Austen's brothers were in the navy tighting in the Napoleonic Wars, but this is the first book of hers that I have read that has given any indication of that. I have the advantage of having read all the Patrick O'Brien books, so I have some clue when they talk about white admirals and prizes. Captain Wentworth's naval career seems to have been a little similar to Captain Aubrey's. They both had the good luck to be in command of relatively small ships with which they could tackle privateers and French frigates, and thus become wealthy. If theh had been in command of ships of the line enforcing the blockade of the French ports, they would have had a more tedious time and less opportunity to make their fortunes.