1980s block 70?

[viperzerof-2]

I’ve found several references to an F-16 block 70 variant that was never built. It is claimed that the block 50/52 was a simplified down grade. It was canceled in 1987 predating the F-16at which I have seen called block 70 by three years.

https://books.google.com/books?id=qJwN0 ... 86&f=false

https://apps.dtic.mil/sti/pdfs/ADA281706.pdf