Imagine you're playing with your toy cars at home, and you have a special car that only you get to play with. Sometimes, important people, like the leaders of countries (we'll call them the heads of state and government) need to travel from one place to another for important events, like meetings or ceremonies. Just like your special toy car, these important people have special airplanes that only they get to use.
These airplanes are called air transports, and they are very fancy and comfortable. The heads of state and government have their own special section with big, comfortable seats and lots of space. They also have a lot of important people who help them travel, like pilots, security guards, and people who make sure the plane has everything it needs.
When the head of state or government wants to use their air transport, they usually have to let people know ahead of time so that everything is ready. They also have to follow special rules and procedures to make sure they are safe while on the plane.
Overall, air transports of heads of state and government are very important and fancy planes that are used to help these important people travel safely and comfortably. Just like your special toy car, they are very exclusive and only used by the most important people.