Right this has been gone through on a number of threads before but since it has been brought up here i will try and go through it again.
Missiles are often cited with their maximum engagement range, which is very misleading. A missile's effective range is dependent on factors such as altitude, speed, position, and direction of target aircraft.
I can't remember where I got the above but it rings true.
The R-77m1 in NOT yet in use by ANYONE as it is still in development and i find it amusing some pro India commentators think they have it when even the Russians don't have it yet.
The ranges quoted for the AIM 120 and the R-77 have one important difference. The Russian missiles tend to give the full kinematic range (AT high altitude, head on engagement etc etc) the AIM's range is for a lobbed launch (without any extra advantages) this will give it a better NEZ
The sensor suite and ECCM on the AIM will be considerably better and since the first few seconds on a missile launch is the crucial part i will take that the AIM will be better.
Oh and there was a tendency for Russians to exaggerate the capabilities of their equipment.
sir with due respect to your point of view there is also a very big difference between the US and russia i n the way these missiles operate a part of the explanation is given below.
The mathematics of multiple round missile engagements are unambiguous - the size of a missile salvo launched is a stronger driver of success than the actual kill probability of the individual missiles. If the missiles are wholly identical by type,factor degrading the kill probability of one missile is apt to have a similar effect on its siblings in a salvo. However, where the missiles differ by seeker type and guidance control laws, then the assumption of statistically independent missile shots is very much stronger.
BVR missile launch was to salvo two rounds, a semi-active radar homing weapon and a heatseeking weapon.Even if we assume a mediocre per round kill probability of 30 percent, a four round salvo still exceeds a total kill probability of 75 percent.this technology is applicable to russian BVR missiles
the western made is AIM-120 AMRAAMThe AIM-120C-4 has better kinematic performance introducing a larger rocket motor and shorter control section, and a better warhead, while the AIM-120C-6 introduced a better fuse. The latest AIM-120D introduces a redesigned seeker built for better durability in high vibration carriage environments, a two way datalink, GPS to supplement inertial guidance, incrementally improved kinematics, and better seeker performance against high off-boresight targets.Since all of the AIM-120s fired are identical in kinematic performance and seeker jam resistance, any measure applied by the enemy d which is effective against one AIM-120 round in the salvo is apt to produce the same effect against all AIM-120 rounds - a problem the russian BVR does not have due to diversity in seeker types and missile kinematics.
classified capabilities such as the use of the APG-79 or APG-81 AESA radar as an X-band high power jammer against the Russian BARS or Irbis E radar are not a panacea, and may actually hasten the downfall.This is for the simple reason that to jam the Russian radar, the APG-79 or APG-81 AESA radar must jam the frequencies being used by the Russian radar, and this then turns the APG-79 or APG-81 AESA radar into a wholly electronically predictable X-band high power beacon for an anti-radiation seeker equipped Russian BVR missile such as the R-27EP or R-77P. The act of jamming the Russian radar effectively surrenders the frequency hopping agility in the emissions of the APG-79 or APG-81 AESA radar, denying it the only defence it has against the anti-radiation missile
sir i will try to post the link with the full details.
thanx