I'm not sure if that's a shield though, I saw the latest gameplay video and I think that's just an effect from either some sort of energy weapon or the repulsors. Anyone know for sure?
Its called by EA Active Defense and its a shield that prevents damage and it lasts for a short period of time and takes a long time to recharge. There hasn't been any confirmation (at least from what I've read) that aircraft have it, but from looking at that picture and the one below they look similar.