This practical handbook explains the aerodynamic principles that allow flight and then gives step-by-step construction guidance for a wide range of small-scale aircraft. It compares kite and aeroplane behavior, addresses centres of pressure and stability, and covers fuselages, wings, and propellers with methods for carving and bending airscrews. Dozens of illustrated designs include monoplanes, biplanes, collapsible and tractor layouts, hydro-monoplanes, twin-screw types, compressed-air powerplants, and a final chapter on fabricating a model airship. General design notes, elastic-motor winders, tailless kite patterns, and troubleshooting advice help readers adapt plans and build reliable flying models.