North American NA-335 explained

The North American NA-335 was the company's entry into the US Air Force's 1960s F-X program.

The NA-335 resembled the T-10/Su-27, however the NA-335 lacked the gap between the engine nacelles, and only a single vertical fin.^[1]

The Air Force however preferred McDonnell Douglas's F-15 Eagle.

References

1. Web site: 2016-03-16 . The F-15 that never was: The North American NA-335 . 2024-01-03 . Hush-Kit . en.