Originally Posted by SteeljawScribe

Why would you want to? The reason the AEW Nimrod didn't work lay in a host of mechanical and other issues - two rotating masses at the end of a structural member? Trying to synchronize returns from two antennas? Just doesn't make economical sense, especially since AEW platforms are going to be expensive and complex beasts to begin with. As for side mounted/fixed antennas, you end up with blind spots that force you to a defined station profile, giving up some flexiblity in the process. I suppose if you are looking for a cheap(er) capability and are willing to accept some of the compromises as a result, a set-up like the Israeli Phalcon would work - but keep in mind that they have a very specifc environement and very specific need.