After a long search for an easy-to-use and fun aerial wargame I think I've finally found it. Can't wait for a WW2 version (I think one has been proposed, 'AirWar 1940' but seems not to have been developed as yet).

Quick and realistic modern air combat rules.

A friend and I played the "lite" version of AirWar:21. Our observations went into his review on comicbooked.com. The review can be found below:

http://www.comicbooked.com/unpainted-lead-air-war-c21/

A very interesting set of Air combat rules for modern conflicts. I will be upgrading to the real thing soon.