A nice video
.............
Not terrible like the video in Rafale thread but there are some mistake:
1) PAK-FA is very flat because it uses the similar tunnel design as Su-27, generally long, flat aircraft has better drag characteristic in supersonic regime. The flat characteristic of the aircraft has very little to do with RCS reduction. While in theory a slightly smaller object can have smaller RCS, the effect is very tiny compared radar absorbing material or shaping. If Sukhoi wanted to get better stealth they would have gone with fixed inlet and engine nacelles close together instead of the variable inlet and tunnel nacelles. Seem like the priority here is supersonic performer over signature
2) the vertical stabilizer on PAK-FA is smaller than Raptor because the whole thing can be steered unlike on F-22 design. So a smaller stabilizer will give less drag.
3) the side looking array is likely for SAR, not for air target. This is indeed very unique
4) The radar assessment is overly simplified.
I seen his other video too.Similarly, his overall layout isn't so bad. But he made varius critical mistakes here and there. Which decrease the total quality of his work a lot
1) Even AN/AWG-9 can engage 6 targets at a time, there is no way APG-77 would be limited to 2 targets at a time. Especially when you consider the scan rate of electronically scanned array
2) UV sensor cannot detect radar wave, that is not their purpose. They are missiles warning sensors
3) Iam not sure why he put in missiles like K-77M , K-MD and Izdlye-810 but then left out AIM-120C-8, T-3 and SACM ? honest mistake or intentional bias ?
4) Function of the L band on PAK-FA seem to be similar to ASQ-239
5) With LOAL, AIM-9X block II can be launched from any aspect, it is also has a public range of 40 km. Secondly R-73 and various version of it only uses two-color infrared seeker while AIM-9X uses imaging infrared. He should have mentioned that instead of ignore it
6) Compare aircraft agility with the so-called 9G , 11G limit is simply wrong
7) Lower wing loading is not necessary an advantage for sustain turn, especially at low altitude. Because more wing area result in more drag
8) 101Ks-V does not use 15 microns wavelength, the transmission of such wavelength is terrible
9) the 60 degrees limit of AESA , PESA is 60 degrees off boresight or in other wordsd 120 degrees in total