>>529853156
Hello new jet friend. Yes the IR lock doesn't give any warning, but some planes in higher tiers might have a MAWS (Missle Approaching Warning System) and whenever a missle is in air it goes crazy.
This said, when you want to have some extremly useful info, watch these guides. They helped me a TON.

>https://www.youtube.com/watch?v=_tQ6JzPWEFU
>https://www.youtube.com/watch?v=DOGazUgUdsQ
>https://www.youtube.com/watch?v=Weghk_2DpfA