What position should the ELT switch normally be set to?

• A. On
• B. ARM
• C. OFF
• D. Engaged

Answer: (B)

The correct position for the Emergency Locator Transmitter (ELT) switch to be set is "ARM." This setting allows the ELT to be activated automatically in the event of an accident or a crash. When the switch is in the "ARM" position, the device is enabled but not actively transmitting, which preserves battery life and prevents unnecessary alerts while the aircraft is operating normally.

If the ELT switch were set to "On," it would continuously transmit a distress signal, which is not appropriate during regular flight operations and could potentially lead to confusion in emergency situations. Similarly, setting the switch to "OFF" would render the ELT inoperative, meaning it would not transmit any signals in an emergency, defeating its purpose. The term "Engaged" is not typically a standard position for the ELT switch, potentially leading to misunderstandings regarding its status and functionality.

The "ARM" position is crucial because it ensures that the ELT is ready for use without being actively engaged, preserving its primary function as a crucial safety device while minimizing the risk of unnecessary distress signals.