What is a transponder for?
Why does atc tell me to change it?
What is a sqawk?
Why do airports say for example: Altimeter 1992?
What is the climb and descent vertical speed for a 767-300?
Well guys, for now this is it. I have always flown on fs but never really studied these things and I would like to start taking the fs lessons. But what are these things I see everytime but I never know what it means?