f22s are so prohibitively expensive that the the usa can barely afford them. and i doubt that the us is gonna hand over the right to buy them to even its most trusted allies. the jsf was made to fill in the numbers role. aircraft are only really usefull in numbers, no matter how good they are. the loan wolf approach will never work in air combat. sence were limited on the number of f22s we can buy and operate (and i dont need my taxes any higher to pay for them), we need a less expensive aircraft to fill in the void, hence the jsf.
but with the us's usuall choise of banana republics as foes, rather than world powers, it would be better off to but another hundred a-10s and call it a day. the leaders of world powers would sooner play golf with eachother than go to war. china is wracking up the cashflow by filling all our industrial needs, and russia can barely deal with their organized crime problem. as much as i would like to have one, i dont see a ww3 short of a bunch of terrorists with nukes.
I don't know where the hell you've been for the last 10 years, but instead the Cold War's all out war; what I've seen was conflict through proxy nations over "buffer" territories and intensifying confrontation between Russia and the USA over fossil resources (oil, gas ect.) (...and please, I'm
not speaking of Iraq. Check up on what has been going on in Eastern Europe as well as Russian "proxy-states" - nation's unlucky enough to be neighbour to a once again awakening superpower in an ever more hostile international political environment.)
An all out war is not likely - a bloody "remote" conflict like Vietnam, except with a somewhat "official"/"humanitarian" relief from another high-tech party doesn't seem so out of the question.
Furthermore if you look into the problem, it's not only about the US of the A but it's overseas partners: people in need of a plane with capabilities similar to the F-22 if they want to maintain the current status quo.
The reson why the JSF won't cut in in this arena, is that numbers only matter as long as they actually get to play - the current Su-27/30 derivates can outshoot, outmanuever and outlast the plane in the air; and the plane lacks the growth potential for a better radar or longer range missiles wihtout sacrificing its current performance.
Simply put the JSF is unsuited to the interceptor/air-supriority fighter role it is marketed to fufill.
For that role you need a bigger, two engine figher with better air-combat performance, range and true supercruising ability (something the Su-30 could gain within 5 years with their own cooled engines).
I'm not bashing the JSF - it is marvelous plane from several POV that can fufill a lot of roles for several branches of the millitary. However air dominance/superiority or deep strike are not among them.
On final note:
The F-22 was until recently renamed F/A-22 (but the name change revoked under asinin reasons) as it has prooven to be more than multirole capable. So much so, that the F-117 will be replaced by F-22s.
The plane also has a marvelous growth potential, which is rarely spoken of, and usually only the bare-bone baseline performance figures are used, which is based on restrictions to stay within Congress approoved budget.
Furthermore R&D costs are also figured into the plane's rollout costs, but not into the JSF's cost which is pretty nasty given that the same research has resulted in the JSF's existance and are a lot more bloated than the actual cost of building additional crafts (which cost will only go down).
One last thing:
The F-22 will also benefit from the JSF program, as a lot of economic procedures developed in the JSF to reduce manufacturing costs will make their way into the F-22, so the F-22 will be also cheaper.
PS.: Check the damn articles I linked. They have references, they don't do overt numbers dicking or citing experts without laying out plain and prooven facts
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@The role of stealth in BVR combat:
1) The Su-30 series has very good optical aquisition systems.
2) They will be outfitted with AESA radars within 5 years (currenlty only fielded on the F-22 and JSF)
3) The JSF hasn't got all aspect stealth as the F-22 does, and the stealth optimisation on its engine is limited to a number of radar bands over the F-22's wide spectrum optimisation
4) The Su-30 radar signature will likely reduced by adding RAM materials. (It will be in the same league as the F-18/Eurofighter ect., obviously with worse results as it is a larger plane.)
To fire the JSF will have to light up its radar, thereby giving away its location. Once it has done so, it's victory is not a forgone conclusion as it would be the case with the F-22 (which isn't even than, just very likely).
The now enjoyed information upper hand also wouldn't be that availible in the above scenarios as current Flanker doctrines all start with cruise missile attacks against radar platforms.
A final not is how "relativly cheap" the Su-30 variants are.
As for the next generation Russian aircraft, you should check up project PAKFA.