الوصف
A scientific kit to discover the secrets of aerodynamics and fluid dynamics. Featuring two dynamic 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. , , In addition to assembly instructions, a sheet with lots of interesting facts about the physics of flight and nautical engineering.
