lets take for example the 30mm cartridges. They are produced in various types and one of them are tracers for combat use. what is the operational application for them on a modern aircraft? are they only to verify the correct way to the hostile aircraft? are they able to start a fire? or are they...
on modern aircrafts we have sophisticated aiming systems, that they are using by the machine guns in order to obtain a perfect accuracy. on that modern enviroment which is the need to keep using TRACER cartridges?