nemrod wrote:I never heard a such thing, on contrary the Mig-25 was not designed to be manoeuvrable as the Mig-21. At first the Mig-25 was designed against the XB-70 Valkyrie's threat, and SR-71 Blackbird. In this task it was a success.
AFAIK, as several books I read, the Mig-25 was not intended for dogfight, even though many syrian, iraqi Mig-25 dodged easily the western's state of the art's air to air missiles. There are reports that Mig-25 dodged successfully several AIM-120 C launched by F-15, and F-16.
MiG-25 is maneuverable although not at the level of Su-27 or MiG-29. The broad, boxy hull sustain better lift and the position of stablizers enable the wind to access vertical stabs at high AoA.
Although MiG-25/31 is designed to be specialized in long-range intercepting, its design concept was applied widely in multirole and dogfight aircraft. Su-27, MiG-29, F-15 are multirole versions of MiG-25/31 concept.
nemrod wrote:As we've already discussed the Mig-21 is far to be obsolete.
It is already obsolete, it can't harbor gigantic radar like Su-35 or MiG-31, it can't fly long and carry much.
nemrod wrote:Again the BVR is like stealth, it never worked, and won't work in foreseeable future, it is an hollywood fantaisy. The number of BVR's success other than those trumpeting by Raytheon is laughable, if not never existed. An aircraft like the Mig-21 could dodge any air air missile, I talk about the more manoeuvrable WVR, no use to tell more about BVR.
Because Hollywood avionics is inferior to Russian avionics. For example, F-xx radar is only 60-70cm diameter, meanwhile Su-35 has 90-100cm radar, MiG-25/31 has 140cm radar, and the L-band wing radar of T-50 is 10 metre long. Bigger radar antenna provide better resolution and sensitivity (I don't understand the full mechanism behind it, though).
Not to mention that Russian fighter can synchronize their radars into a same time-space system and compare the distance between each radar to the target to calculate the accurate location of the target. Using that method enable Russia to accurately locate the target without relying on radar's resolution.
About stealth, longer wavelength can neutralize stealth cloak but decrease resolution. However, Russian gigantic radars in T-50 and MiG-31 and the method to synchronize their radars enable Russia to use low band longwavelength (L band, UHF, VHF) to detect stealth aircraft. Su-27...37 can't emit L band, but it can receive L-band signal from other sources. F-22/35/117 can't escape Russian radars.
nemrod wrote:Multirole combat impede much on the intrinsics performances of an aircraft. All US multirole aircrafts are all a setback. The most famous the JSF is total faillure, because it was designed as multirole. Soviet multirole fighters were faillure too, like the SU-7 for example.
Russian multirole like Su-27 family are highly successful. The design concept of MiG-25 enable the fighter to has greatpayload and great range while retain much maneuverability, therefore it is natural for people to think about developing fighter-bomber.