Hiller X-18, Ryan X-13, or bell X-22. all three are very unique, and i belive that lesser known X series crafts need more attention than the X-15 and the X-1 and 2
I say Su-27.
You already have some experience making Flankers and performance-wise, I think it'll do well in the competition. 4 short-range AAM's and 6 SARH missiles with good maneuverability to boot is nothing to scoff at.
Hiller X-18, Ryan X-13, or bell X-22. all three are very unique, and i belive that lesser known X series crafts need more attention than the X-15 and the X-1 and 2
I say Su-27.
You already have some experience making Flankers and performance-wise, I think it'll do well in the competition. 4 short-range AAM's and 6 SARH missiles with good maneuverability to boot is nothing to scoff at.
CH47 or Bell Huey
M60 Patton
Okay, okay, build an F9F Cougar
Микоян МиГ-23
F-84F Thunderstreak