On airstrip one and it's power- is not the governing ideology of Oceania ingsoc, English socialism?
Good point! I was hoping no one would mention that!
But seriously, Orwell does give off some mixed signals about which partner in the Special Relationshiop actually runs things in Oceania. Part of it might be put down to he himself not really thinking things through, partly because he had competing agendas, eg. he wanted to comment on American domination of Britain during the war, AND satirize some of the lamer tendencies of English Socialism.
So we end up with a world-power based on English Socialism(in order to spoof his compatriots), but which is being culturally Americanized at a rapid pace(in order to bewail the loss of English culture).
But, if we're looking for consistency, one could argue that Airstrip One is the titular headquarters of Oceania, but is governed by an Americanized elite(possibly including numerous Americans). Basically, the USA absorbed the British Empire, but kept London as the capital, because it had already been the capital of the anglosphere before the war.
And English Socialism has been shorted to Ingsoc precisely to remove the obvious cultural connotations.
But I'm sure I read it had a big role in the revolution.
Thing is, though, almost everything we know about the back story to Oceania comes from its inhabitants, who, given the level of ignorance they're living in, probably aren't the most reliable narrators. So, in Airstrip One, the propaganda might be that England was this huge centre of the Revolution, when in reality, all that happened in the 50s was that the US annexed the UK, maybe whipped up a few insurgencies to give the appearance of a mass revolution.
As I recall, Goldstein's book(admittedly a hoax) states that Oceania came about from the US abosrbing Britain. I don't think it goes on much about any real Revolution.