In a Lost Comms scenario, which action acknowledges an ALDIS signal?

In a Lost Comms scenario, which action acknowledges an ALDIS signal?

• A. Waving arms
• B. Thumbs up
• C. Blink lights rapidly
• D. Rock rotor only to acknowledge ALDIS signal

Answer: (D)

In a Lost Comms situation, ALDIS lamp signals are a visual way to pass instructions when radios aren’t working, and the proper way to confirm you’ve seen and understood one is to acknowledge by rocking the rotor. This motion is the recognized, unambiguous signal to the ground observer that you received the instruction and intend to follow it. Waving arms, thumbs up, or blinking lights rapidly aren’t standardized acknowledgments for ALDIS signals and can be misread or go unnoticed, which defeats the purpose of clear visual communication. So rocking the rotor only provides a simple, reliable way to confirm receipt of the ALDIS signal.

In a Lost Comms situation, ALDIS lamp signals are a visual way to pass instructions when radios aren’t working, and the proper way to confirm you’ve seen and understood one is to acknowledge by rocking the rotor. This motion is the recognized, unambiguous signal to the ground observer that you received the instruction and intend to follow it. Waving arms, thumbs up, or blinking lights rapidly aren’t standardized acknowledgments for ALDIS signals and can be misread or go unnoticed, which defeats the purpose of clear visual communication. So rocking the rotor only provides a simple, reliable way to confirm receipt of the ALDIS signal.