Logical Toys & Gifts Ltd Science & Play: BUILD Mechanic Lab-Triple engined Helicopter and Airboat

A scientific kit to discover the secrets of aerodynamics and fluid dynamics. Featuring two dynamics models of a three-rotor helicopter and airboat to build, children can discover the way transmission mechanisms work. Contains more than 130 interchangeable components including gearbox, gears, bars, propellers and pins. Made under licence with the Science Museum. Box size: 27.6 x 18.8 x 4.5cm