Victor Rosanna is a brilliant aircraft. But the cabinet work with drawings inconvenienced him. He dreams to go up in the sky on one of the planes, but not to see them only on paper. Rosanov’s new task is a preparation of experimental aircraft for flight. After successful completion, Victor is prescribed to control airport and gets allowed for flight. But the new work has its negative side. The engineer will have to deal with himself to understand whether he has got to his seat.