Don’t forget second stage climb if twin engine!

I think that it was mandatory to use when hot starts were more prevalent in the days of scuba tank air starts, propane, and glow plugs. IMHO...I believe that kero start is a more consistent and a cooler start. If you’re using a full bypass, I use a air bed pump to help with the cool down after the flight. In flight, it isn’t an issue because of being surrounded with fast moving air for cooling. If you are hovering the jet, then it probably needs used somewhere. I also program the engine ECU to cool down to 80 C. This way there is less radiant heat.