Engines

Regulations for ignition-powered models require them to have more than one way to shut off the engine. Critically, one method must work without the radio subsystem (meaning in the event of radio failure, or when the radio is not accessible). Note; if you want to know what's at stake (and have a strong stomach), then review this article of what a prop can do to the human body, but heads up . . . it ain't pretty! Regarding props - heads up! Ignition shutdown without the radio Thus, typically...

High performance polished aluminum helicopter muffler. Includes silicone 35° diverterOS MAX 50SX-HOS MAX 55HZ-R DRSOS MAX 55HZ-H Hyper