Some notes... The MiG-15 doesn't look like a Sabre, it's fatter
It was also more agile and had better thrust:weight ratio...
Su-39=Su-25TM=anti-tank version upgrade (which was for a while called the "Su-34").
Souhoi Design Bureau did a Su-33 expo model with one engine at some point. Looks like a Su-35, but smaller, lighter, and on one engine. Sort of like a cross between F-16 and Su-27... Would be great if you could do that.
The "S" in "S-37" stands for "samolyot", or just "plane". It was renamed to Su-47 when it was intended for production, but it gradually morphed into the T-50 with normal-sweep wings. Apparently they hit problems similar to the X-29 - forward-swept wings are very expensive and difficult to build. Internal designation for the Su-47 was Su-27KM, later S-32, finally S-37. Meaning, it was a deep Su-27 mod, not a new plane.
The "T" is a bit more than a "prototype" designation, it means "theme", as in "working theme" or "development theme". So the Su-27 "theme" was "T-10", "T-4" was the experimental heavy supersonic reconnaissance/bomber aircraft, Su-25 prototypes were all designated T-8-something (T-8-1, T-8-2, etc.), and current T-50 planes are T-50-1 and T-50-2 with "51" and "52" stencils. The "T-planes" are working prototypes, they are more than just prototypes, e. g. T-8 planes were combat-tested in Afghanistan war way before they were called "Su-25".
T-60 was a designation for a supersonic deep strike bomber, heavyish. Never materialised, though there were several versions (something like 4 sketches, starting with 1983). Maybe that's what the "Su-60" is supposed to represent; the designation doesn't exist.
Some sketches of the T-60:
http://paralay.com/t60/600.jpg
Eventually, starting from 1994, it became a stealthy bomber project:
http://paralay.com/t60/t601.gif
<- that'd be cool to have as an alternate stealth bomber unit.
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Not only the work with the units is incredible. All the links in the thread ,previews ,uploads and so... Thank you very much for assign all that time to my most favorite game.
