Originally posted by VType
Ive known for years that the US has acquired many Russian/communist craft. These days more and more we are using them in training. But my question is.
Do the Russians have any Nato/American aircraft/systems that are relevant that they train against. I know having exact models of your foes in training
is Gold militarily. Ive yet to find many resources on the subject. Anyone?

There was an ex-Viet F-5E that ended up in a Czech museum or test center for quite awhile.
I know that parts of an F-4J ended up donating J79 and APG-59 technology to the second generation MiG-23 upgrade.
OTOH, the REAL gold mine for the Soviets was, is and will always be, not the military but the U.S. itself. Freedom of information and the ease of
access to what were locked behind 1,000's of miles of interior surrounding their factory and 'science city' installations locked their R&D people
away from easy access.
But on the 'secrets are only as safe as the inverse of the square of people who know them' rule; you can easily see how just simple access (a camera
recording vehicle plate numbers leaving a given MACDAC or GD or Boeing plant), combined with a little covert penetration of our police networks (which
were interlinked long before the Internet), could get you 'all you needed to know' to begin working psyche profiles on threats.
In truth, this kind of humint appeals greatly to the insular and clannish Soviets who are past masters of manipulating their own closed society and
have no disclosure or oversight rules on their spying activities.
So for every John Walker type opint case, there are probably a dozen others providing techint who sell their souls for money and then have nowhere to
go with it that is not blocked off by their handlers.
Our own edge is of course technology and the ability to listen in to things which most people believe is either impossible or illegal but which the
Feds do 'anyway' (the 'Bush does wiretapping' thing is so old that it's not even got much shine anymore). Because the land of the free really
means the land of the blissfully unaware in those agencies of ours which operate on a stratified and partioned architecture most similar to the
Russian model.
The APG-63/65 radar techbase was stolen this way. So too were a couple critical ASW thermocline model processors or their firmware I believe (I think
this was SOSUS or longline rather than sub tow but I could be wrong).
And then of course there are all the overseas manufacturer/NATO leaks which gave such things as Norwegian and Japanese propellor milling technology
away.
In the end there is some merit to letting your enemy have /some/ elements of your technology base. Simply because then they have no excuse to really
start developing their own (which may or may not be a mirror-match so much as 'better than' your operational paradigm). As long as you are the lead
dawg, the mushers behind only get to see your ass and this also helped keep our own MIC well and truly 'growth as much as innovation' minded (which
is to say technology-insert respondent with continual micro upgrades that meld together to make a seamless system-of-systems synergy by default rather
than intent).
The problem of course is that we have fed the beast until it became a monster and now we have a very hard time seeing the world as anything /but/ a
win:lose military scenario because a lot of our other societal systems have been allowed to fail maintaining an edge for which we have no conquest to
pay for.
KPl.