John continued his work for a few years, and built several model aircraft, preparing for a full-scale test flight. The only thing standing in his way is a medical condition making him dizzy and causing him to collapse. He is told by a doctor that he will never be able to fly safely suffering from this illness. John is disappointed, but his confidence is renewed when he encounters the parachute enthusiast and performer Dan Mahoney, who offers to pull the glider up in the air with his hot air balloon. The two fathers help John to complete a successful test flight with his new glider. Unfortunately his poor finances prevent him from pursuing his passion for flying any longer, even though many people show their interest in his work.
