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" ... Mark Gunzinger, senior analyst at the Air Force’s Association’s Mitchell Institute for Aerospace Studies, says the F-35A’s stealth is a “threshold requirement for an air force that is concerned about trends in adversary counterair capabilities.” ... "
" ... Penetrating counterair fighters. The Air Force is developing a new bomber that can attack the most remote, heavily-defended targets in China and Russia. It’s an essential component of the U.S. nuclear deterrent, but shortly after the bomber contract was awarded the service began talking about a super-stealthy, long-range fighter that could accompany the bomber on penetrating missions. The performance features and small number of fighters needed pointed to a cost per plane approaching a billion dollars (R&D included). This is too high a price to pay for a mission that probably will never be executed. If the bomber is correctly configured, the fighter shouldn’t be necessary. It may not even be technically feasible. The Air Force has begun backing away from the idea, saying it probably needs a “family” of future penetrating capabilities, not a dedicated airframe. Hopefully the service will stay on that vector. ... "