Mr. Planemaker's Flying Machine by Shelagh Watkins

Mr. Planemaker's Flying Machine is a story of flight, fantasy, adventure and courage. Emmelisa Planemaker is a strong-willed little girl but she misses her dad, who died when she was only five years old.

Emmelisa and her brother Dell have a happy and carefree life until their father becomes ill and is forced to retire at the age of forty-three. After retirement, Mr. Planemaker decides to build a scaled, model airplane because he wants to build something lasting for his children but he dies before completing the task.

Three years later, Emmelisa is being seriously bullied at school by a group led by the notorious school bully, Mayja Troublemaker. When Emmelisa becomes increasingly withdrawn and unhappy. she seeks help and advice through the computer her father had used to locate specialist model aircraft companies in his quest to build a model airplane.

The computer is more than just a computer and full of surprises: Mr. A. Leon Spaceman being one of them! He guides the two children to Hardwareland, where they train to become astronauts and take on an unexpected mission into space: to follow their father's TRAIL OF LIGHT.