Also, R-27 have 2-3 time less possibility of success than AIM-120 when target uses dence chaff barrier.
And after all,effectiveness of chaff is strongly consist from aspect angle of the target. If missile is approaching from right from the rear than probability of re-lock to chaff is near 100%. If right from nose - near to 0%. If aspect is near to 20-30% from rear or front - probability of re-lock will be good, up to 8-10 rapidly fired chaffs must breack lock on the target.
SO
Please, whan you tell "ARH effectiveness is **** " than tell also please in which situation (launch range, type of target, aspect during homing and ect.) it is. Thank you.