This is a â€œtoyâ€ regardless of the physics used showing a prop assembly taking flight, itâ€™s only powered by a wound up rubber band much like a model airplane is but its energy is within its handle, acting on the 5 bladed propeller assembly. The operator willfully releases its energy by depressing the trigger disengaging the radial ratchet - setting the prop assembly unwinding.
The 2 magnetic discs shown separate only after the prop thrust exceeds the magnetic attraction; the potential strong magnetâ€™s attraction works to hold the prop axially in place â€“the incrementally weakening needed by placing multiple adhesive plastic disc shims separating the two magnets for its working attraction thatâ€™s initially unknown (at the time). 3 fixed pins drive the props radially â€˜till the pins naturally withdraw out of their respective holes as the prop rises thereby freeing the prop from the launcher pad on its free flight.
If an option (shown below) having LEDâ€™s on the prop ring are switched on only during flight -powered by hearing aid batteries- experiencing centrifugal force causing axially sliding of the battery casing outwardly making contact on the two LED leads while spinning, the leads are normally isolated by a adhesive donut disk atop the battery, the battery is captured in a loose housing permitting its movements. A gentile, molded in beam (spring) must be overcome by the centrifugal force generated only while the prop assembly is quickly rotating enough, but the beam acts to â€œresetâ€ again to a â€œno-contact conditionâ€ anytime the prop assembly is at rest.