When the Underwater Locator Beacon is submerged, it emits a signal for how long?

• A. 7 days
• B. 14 days
• C. 30 days
• D. 60 days

Answer: (C)

An Underwater Locator Beacon is designed to help locate wreckage after a crash by continuing to emit a locating signal once it has been submerged. The beacon is powered to transmit for a fixed period so search teams have a reliable window to detect it with underwater listening gear. That duration is thirty days because it balances battery life, device weight, and the practical time needed for recovery efforts to reach the area. Shorter durations like seven or fourteen days would shorten the search window and risk losing the signal before teams arrive, while a much longer duration would require more battery and hardware without necessarily improving detection chances. So, the signal lasts for thirty days.