And just to say, the more i look at the UADFs the more awesome they look, especially the potential they offer, if you slap a cockpit on one or both you have a very formidable light 6th gen fighter with minimal changes, perfect for export (because i assume there will be decades ahead in which most countries would not afford UADFs or heavy 6th gen fighters). Also how about a STOVL out of them? They are single engine so that is a start. I wonder if they were designed with this kind of flexibility/modularity in mind.