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There is no need for US to buy Chinese MiG-21 for now. But if some country is lacking money to buy Stealth fighters, if people is starving...it should consider buying or if it already has 21, upgrading is option.Point is you do not throw away yesterday's bread, it can be useful.Personaly I recommend F-35 to all.Maneuverability metric is the ability to change speed and direction of flight path (velocity vector pointing) and controllability - ability of change aircraft attitude (pitch/roll/yaw - nose pointing) and thrust (engine response - spool up time) or in simple words "how slow it can fly and how high angle of attack it can sustain and still turn". In guns only combat sustained turns are of prime importance, possibly at higher practical speeds.http://cgi.ebay.com/Fighter-Performance-in-Practice-Phantom-versus-MIG-21_W0QQitemZ290453596718QQcategoryZ2228QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26its%3DI%252BC%26itu%3DMRU-267%252BUCI%252BIA%252BUA%252BFICS%252BUFI%252BDDSIC%26otn%3D20%26pmod%3D290443813778%26ps%3D63%26clkid%3D7157192915047727014I know that shootdown ratio figures against helmet cued AAMs from excersises. I think that at some time they stopped counting because it was waste of time and went to the drawing boards.
There is no need for US to buy Chinese MiG-21 for now. But if some country is lacking money to buy Stealth fighters, if people is starving...it should consider buying or if it already has 21, upgrading is option.
Point is you do not throw away yesterday's bread, it can be useful.
Personaly I recommend F-35 to all.
Maneuverability metric is the ability to change speed and direction of flight path (velocity vector pointing) and controllability - ability of change aircraft attitude (pitch/roll/yaw - nose pointing) and thrust (engine response - spool up time) or in simple words "how slow it can fly and how high angle of attack it can sustain and still turn". In guns only combat sustained turns are of prime importance, possibly at higher practical speeds.
http://cgi.ebay.com/Fighter-Performance-in-Practice-Phantom-versus-MIG-21_W0QQitemZ290453596718QQcategoryZ2228QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26its%3DI%252BC%26itu%3DMRU-267%252BUCI%252BIA%252BUA%252BFICS%252BUFI%252BDDSIC%26otn%3D20%26pmod%3D290443813778%26ps%3D63%26clkid%3D7157192915047727014
I know that shootdown ratio figures against helmet cued AAMs from excersises. I think that at some time they stopped counting because it was waste of time and went to the drawing boards.
