RAND study: Are joint fighter programs even worth it?

Better than $20 worth of separate tools? One of the driving forces behind the JSF program has been the effort to save money by amalgamating several different fighter replacement projects into a single effort. The idea makes sense, in theory. Why develop two, three, or four separate aircraft when you can develop a single platform capable of all requirements? Not only is there a promise of saving development costs, but a common platform also promises to be cheaper in the long run as well, with economies of scale providing cheaper construction and sustainment costs. This is the theory. Reality has proven to be much different. A new study performed by the RAND think tank questions the logic behind "Joint Fighter Programs". Its conclusion: Joint fighter programs end up being far more expensive in the long run. Many don't work at all. USN F-111B. The TFX program's dead end. Let's look at the TFX program responsible for the dev...