TM 55-6930-212-10 d.  For AAA threats, a kill can be prevented by breaking the line-of-sight to the threat locations before the specified track times are exceeded. e.  For SAM threats, a kill can be prevented by breaking the line-of-sight to the threat sites any time after going into track.  For the SA-8 type threat, flares have to be released. f.  Line-of-sight has to be broken for 5 seconds. Table 8-12.  AN/APR(V)l Radar Modes Range Search ACQ Track Missile activity Threat (km) (sec) (sec) (sec) (MA) Comments ZSU-23-4 >2.5 Indef 0.5 2.5 8 3 4 0  0.5 4 SA-4 >70 Indef 6 70 12 8 10 Yes MA mode 4 sec after track 4 10 Yes (design estimate) 0 4 Indef SA-6 >30 Indef 6 30 7 7 7 4 6 7 0+4 Indef SA-8 >15 Indef 4 15 7 0 7 2 4 7 0 2 Indef Flapwheel >6 Indef 1 6 12 8 10 0 1 10 8-93