What measures can be taken to prevent unauthorized flying of aircraft?

• A. Install hidden shutoff switches, park disabled vehicles around aircraft, and remove batteries.
• B. Close hangar doors and turn on neon lights.
• C. Post warning signs and hope for compliance.
• D. Do nothing.

Answer: (A)

Preventing unauthorized flying focuses on removing the ability to start or move the aircraft and creating barriers that deter that access. Installing hidden shutoff switches interrupts the critical power and engine-start circuits, so someone without authorization cannot start or taxi the aircraft even if they reach the controls. Removing batteries further ensures there is no power available to systems needed for starting or operating the aircraft, reducing the chance of a rogue attempt succeeding. Placing non-operational vehicles around the aircraft adds a physical obstacle and a visible deterrent, making it harder for someone to approach, connect, or tow the aircraft without proper authorization.

Other options fall short because they don’t provide the same level of protection. Keeping hangar doors closed helps contain access, but without robust power controls it might not stop a determined person who gains entry. Neon lights simply improve visibility and awareness; they don’t physically prevent unauthorized operation. Warning signs rely on voluntary compliance and do not physically deter actions. Doing nothing leaves the aircraft fully exposed to misuse.