they are not as large as F-15 or su-27 or F-18. typhoon and Rafale also only have a single verticle fin.
From afm by wisepanda
From afm by wisepanda
I really wonder how it can deliver 350-400 km detection range with 5kw power output.China Assesses New radar for Su-30 Fighters -- JDW 15 Nov. 06
*NIIP offering N-035 Irbis-E to PLAAF as potential radar upgrade from Su-30 MKK & MKK2 fighters.
*Radar can detect and track about 30 targets and engage 8 simultaneously.
*SAR mode image resolution < 1m.
*Detection against target with 3M^2 RCS is 350-400 kms.
*Using mech & elect Scanning radar has look angle of +/-185, +/- 60 in elevation and +/- 120 in azimuth.
*Su-35 can provide radars max power output requirement of 5kW. Su-30 can deliver less than half that amount.
*NIIP representatives states that PLA with either upgrade all its Su-30 with Irbis-E or some of them or buy Su-35.
*NIIP says that a radar with an active array is a definite chinese requirement for Su-30 and it might be the potential provider.
On a side note:
"Zaslon-M tech is linked to work NIIP has undertaken on Irbis-E."
Source: Russia restarts missile projects, 15th Nov. JDW06