With Air Force Secretary Frank Kendall now calling for a new air superiority fighter that rings in at below the current unit-price of the F-35, the harsh reality of the situation is that fielding the world’s first sixth-generation fighter at that price point isn’t realistically feasible. In fact, it’s barely realistic for an advanced 4th generation fighter — with jets like the F-15EX, Eurofighter Typhoon, Dassault Rafale, and SAAB Gripen E all ringing in at above Kendall’s target price.