A film about the designers of home-made aircraft. Crane operator V. F. Frolov with an aircraft of his design on the airfield. Airplane flight. VF Frolov in the cockpit, at the helm. VF Frolov at work, gives interviews (synchronously). Mastreskaya V.F. Frolova. Youth design bureau in the Tushinsky district of Moscow. Designers A. Khachapuridze and S. Babenov at work on drawings, details for the future aircraft. Aircraft assembly. Amateur aircraft designers: L. Konovalov, V. V. Vinitsky at work on their models. V. V. Vinitsky gives interviews (synchronously). Designers V. Makhov and S. Belikov during tests of a two-seater aircraft of their own design. Schoolchildren in the classroom in the aircraft modeling circle. Rural winter landscapes.