The fact that Russia hasn’t shot down a Turkish jet means one of two things; Russia is being patient and using other means to retaliate, or, Turkey hasn’t sent one into harm’s way since the shoot-down. According to what I’ve read about the newest SAM system it was created to shoot down even low-flying F-16’s. I’d be curious to know how they will do that. I’d expect that the missile will be more maneuverable; more an automated fighter itself than a mere lock-on and kill weapon. Probably it’s networked with radars and guided the entire way to the target.