True airspeed

True airspeed (TAS) is how fast an airplane is really going through the air. You see, when you're in a car, you feel like you're going really fast, but if you stick your hand out of the window, you'll feel the wind pushing against it. The same thing happens to airplanes, but it's a little more complicated.

When an airplane is flying, it's moving through the air, but the air is also moving around it. This is called wind. So, if an airplane is flying at 100 miles per hour, and there's a 20-mile-per-hour headwind, it will feel like it's only going 80 miles per hour. On the other hand, if the airplane has a tailwind, it will feel like it's going faster.

True airspeed is the actual speed the airplane is going through the air, without any effects from the wind. Pilots use true airspeed to figure out how long it will take to get to their destination, how much fuel they need, and other important things. They have special instruments on their dashboard called airspeed indicators that help them measure true airspeed.

So, true airspeed is like the airplane's real speed, without any help or hindrance from the wind. It helps pilots fly safely and efficiently!