Quarto
Unknown Enemy
Neither have I... so as far as I'm concerned, the Hellcat was considered a 'new' design right from the start. The Tigershark, on the other hand, for at least a part of its development was considered the F-5G. Now, I agree that at the end of the day, they cannot really be considered the same plane, but I felt that your "sometimes confused with the much earlier F-5" comment required correction.