The 250/3rd PVO had an infra camera in place of the Karat...
... they used it twice, and failed to hit.
WOW! Somehow I missed that!!! Zoltan Dani's SNR has infrared?????
By the way, not sure it is for this topic but:
Comprasion F-117/F-22 Note "Rate of climb" section... 80 m/s for F-117... If we multiplied this by time of engagement we will have ~ 2km change in altitude...
P.S. No idea is this the real rate of climb or not...