#technical hobby
- Model aircraft — A small-scale aircraft built as a miniature replica of a real plane or based on an original design, capable or incapable of flight, used for sporting, recreational, educational, or experimental purposes. Flight-capable model aircraft can be radio-controlled, control-line operated, or free-flying, and are built from lightweight materials such as balsa wood, polystyrene, or carbon fiber.
- Female aeromodeller — A woman who practices aeromodelling; an enthusiast or competitive athlete specialized in assembling, structurally calibrating, and radio-controlling scale model aircraft. Her activity combines the engineering rigor of construction with the fine reflex skills required to pilot the devices during technical demonstrations or specialized championships.
- Car modeller — A person (builder, driver, or enthusiast) who practices car modelling; a specialist or amateur who designs, assembles, tunes, and drives static or radio-controlled model cars. In technical competitions, a model car driver demonstrates craftsmanship both in managing the mechanical and electronic parameters of the miniature (suspension settings, gear ratios) and in rapid driving reflexes on circuits.