How long does the ELT send signals?

The correct answer indicates that Emergency Locator Transmitters (ELTs) are designed to send signals for a duration of approximately 50 hours. This capability is essential for search and rescue operations because it allows for a prolonged period during which the transmitter can emit distress signals. This duration ensures that aircraft or marine vessels that have gone missing can be located effectively, even if their rescue is delayed due to various circumstances like weather or remote locations.

The design of the ELT also considers battery life and efficiency to maintain this signal output, which plays a crucial role in enhancing the chances of recovery. An ELT's ability to transmit for such an extended time is a crucial feature that supports the safety of individuals in emergencies. Understanding the signaling duration helps personnel involved in search and rescue missions to determine how quickly they need to act and how long they can expect to receive signals from a distress situation.