Wargaming.net unveiled today the initial tech tree of the american warbirds that will be available in the upcoming aerial action MMO World of Warplanes (of which I wrote a preview a couple months ago).

The line-up introduced today (that includes planes ranging from the roaring thirties to the Korean war) will be available at the game's launch, scheduled next year, together with a wide variety of German and Soviet aircrafts.

You can see a new trailer, the full US Tech tree, a batch of screenshots and a few renders beyond the cut. 

http://www.youtube.com/embed/YiV41ZLhwuM