"Andreas Parsch" wrote in message
...

They were technology demonstrators, which were expected to be
developed directly into fighter prototypes. Therefore, the X-32/35
could have been properly designated as XF-24/25. Assuming that #25
would have been the winner, the JSF _prototypes_ would have become the
YF-25.


This technology demonstration was only going to produce one winner, which
would have become the F-24 program without the intervention of the
previously mentioned DoD official. The first few produced would have been
prototypes and designated YF-24.