Okay kiddo, have you ever wondered about the people who fly planes and rockets? They are called pilots and cosmonauts.
The USSR is a place that used to exist and it had pilots and cosmonauts too. A cosmonaut is someone who goes to space in a spaceship.
The pilot-cosmonauts of the USSR were very special people because they were trained to do two things: fly a plane and fly a spaceship.
To become a pilot-cosmonaut, they had to go to a special school where they learned all about planes and spaceships. They had to study very hard and train for many years to become experts.
These pilot-cosmonauts would go on space missions to explore space and learn more about the universe. They would also fly planes on important missions for their country.
It was a very important job and required a lot of bravery and skill. The pilot-cosmonauts of the USSR were very respected and admired by many people.
Overall, the pilot-cosmonauts of the USSR were people who were trained to fly both planes and spaceships. They were very brave and skilled individuals who went on important missions for their country.