Propeller big, SE

For experiments on the subject of motor - generator, also as a sub-area of alternative energies, for demonstrating the conversion of electrical energy into mechanical energy and vice versa;
Propeller or wind turbine or fan, also suitable for wide air flows, can be attached to 2 mm motor axles
Material: Plastic
Dimensions: D=90 mm, H=20 mm
Mass: 6 g

additionally recommended:
P3610-1M MBC motor/generator, SE