STARK-79 4-cylinder Airplane Shape Hall Sensor Engine Magnetic Engine Model Color:Random Color of Blade Power Generation Description: The higher

Power Generation Description: The higher the engine speed

sponge and acrylic

Compression Ratio: 7

Fifty pounds of static thrust

STARK-79 4-cylinder Airplane Shape Hall Sensor Engine Magnetic Engine Model Color:Random Color of Blade Power Generation Description: The higherSTARK 79 4 cylinder Airplane Shape Hall Sensor Engine Magnetic Engine Model Features: . Product Parameters: Input voltage is 8v, output voltage is 4w . High Quality: With a reciprocating electromagnet, a magnetic force can be generated at a good position to achieve a better operation effect. The bearings used are ball bearings with low friction, quiet and durable. Acrylic support with high precision cutting, with four bearing seats as a fulcrum, more