if it tries to escape, not only it won’t be cold but it will be glowing from the rear (there’s a tiny little thingy at the rear end called the engine that produces A LOT of heat 😉 )

besides, while the engagements start at higher subsonic speeds, once you start pulling G’s your speed will inevitably drop fast. All in all, there are too many parameters to just make a short answer, but basically:

– before the fight starts the faster fighter can dictate whether and when to fight,

– once the fight started (chances are there are the missiles will be spent before the merge as none will voluntarily start a dogfight unless he doesn’t have another option), it can turn into a gunfight in which a faster fighter again has the edge (it can disengage and reengage at will while the slowest one can only hope to survive long enough to either kill the other guy or until the other guy is out of fuel).

Now if you have the slower fighter AND your fighter can’t turn as well as the other one, you’re in deep trouble (to stay polite) if you have only your gun left to fight your way out of there. Some may add “it’s a whole system that fights, not just on fighter or one group of fighters”, but the answer is the same, you either fight an opponent that is no significant threat to you in any way (like most (if not all) wars in the last two decades) and the F*35 is just a overpriced toy that could have been replaced easily by current fighters for much less cash spent, or you fight a really potent opponent and in such case, the F-35 better have some good fighters covering it while it goes to drop its load on target.

the thing is if you go faster , you will be detected from longer range , so the slower aircraft can also decide to enter or retreat from the fight , chose good position before the faster aircraft even know it was there , and like i said , no pilot going in dogfight with speed > mach 0.8-> 1.2 so the advantage in speed mean nothing here 😉
and before going in to dogfight enemy aircraft must be able to evade 3 meteor , 2 AIM-132 , 4 CUDA , older gen fighter will simply dont see stealth fighter nor having any opportunity to launch their missiles so it is necessary to have stealth aircraft

Here is an IR image of B-2

And from 30 sec, here is an IR video of F-22
http://www.youtube.com/watch?feature=player_embedded&v=58N6Plr17GU

in your image the flir looker at the B-2 , F-22 from lower altitude , the aircraft against very cold sky
but when a f-35 try to retreat , pilot may decide to dive down to lower altitude than enemy and fly a ways 😀 , so trying to find a cold aircraft in a clutter back ground would not be that easy

US going forward will have alot less money for projects like F-35. as current election show the voting demographic change.and in next 8 to 10 years more walfare oriented canidates get elected to Congress. and this is inaddition to debt problem. Obama Chicago Olympic bid shows him that he simply cannot channel vast amount of money into one city that Brazil promised at that time. so projects with lot of money and less econmic impact will getting difficulty.
T-50 does not have this problem. Chinese will run out of money like Japan before it can put operational Stealth fighter.

what make u think russian willnot run out of money like USA ??????? , they also have problem as well , and their budget also less than usa, T-50 also mean to be cheaper than F-35 :confused: so nothing stop F-35 from having equal or better avionic than T-50 , J-20 ( f-35 is quite an important program that why it havenot been cut )

It’s not about not knowing where they come from (in exercises they know full well where the adversary is) but about being outaccelerated without being able to follow

Today the same thing is counts again: if you can’t run away, you can’t disengage so easily if you’re at a disadvantage. The faster fighter can choose whether it accepts the fight or not, whether it stops the fight or not. The slower fighter can only try to hide and if it doesn’t work, it has to be able to fight back effectively as it can’t get away

😉 why you need to follow enemy if you only need to know where they are to launch a missile to that direction :confused: and like i said dogfight never happend at speed > than mach 0.8-1.2 so your argument about advantages in speed here is quite meaningless 😉 , and btw at low altitude top speed of most fighter are quite equal , mach ( 1- 1.2 ) so when both sides run out of missiles F-35 pilot will dive down to low altitude run away (aircraft perform good at high altitude will be in disadvantages at low altitude and the opposite thing also true 😉 so