From what I've seen they are identical to pilot wings, only with a larger anchor in the middle and without the laurels.
The whole idea is worthless. As others have said, I rather like the fact we don't strut around with wings on all our rig, and those we do wear are on the sleeves.
So now I'm going to have 2 sets of wings, only one of which means anything. The whole thing ends up being counter-productive because instead of bringing each fighting arm together (like we need that anyway) it ends up dividing us.
Wonder what Eric Brown would think, and what he would call his book these days.