Wait until the general public learns about the tech behind most of the currently fielded smoke detectors. Also, this has long-since been obviated with active a

Wait until the general public learns about the tech behind most of the currently fielded smoke detectors. Also, this has long-since been obviated with active acoustic/vibration detection in modern rotor drive-trains. All that said, every registered civilian and military chopper has high duty-cycle manual inspection of rotor blades too. They use both their Mark I eye-balls and ultrasonic transducers.