3-2-3. RECEIVER-ONLY ACKNOWLEDGMENT

3-2-3. RECEIVER-ONLY ACKNOWLEDGMENT

To obtain acknowledgment from an aircraft equipped with receiver only, request the aircraft to do the following:

1. Fixed-wing aircraft:
   1. Between sunrise and sunset:
      1. (a) Move ailerons or rudders while on the ground.
      2. (b) Rock wings while in flight.
   2. Between sunset and sunrise: Flash navigation or landing lights.
2. Helicopters:
   1. Between sunrise and sunset:
      1. (a) While hovering, either turn the helicopter toward the controlling facility and flash the landing light or rock the tip path plane.
      2. (b) While in flight, either flash the landing light or rock the tip path plane.
   2. Between sunset and sunrise: Flash landing light or search light.