How does a pilot signal the desire to relinquish control when there is an intercom failure?

In aviation, clear communication is vital, especially during situations where an intercom failure occurs. When a pilot wants to signal that they are relinquishing control to another pilot, moving the rudder pedals back and forth serves as an effective non-verbal cue. This method can be physically observed by the other pilot and indicates a message that control is being handed over, as both pilots are in close proximity and can see each other’s movements.

Other methods such as waving hands or performing actions with the control stick may not have the same clarity or may be less noticeable in the confines of a cockpit. Contacting ground control is also impractical in this scenario, as the purpose would be to communicate with the other pilot, not ground authorities. Thus, using the rudder pedals provides a direct and visible indication of a transfer of control that aligns with established communication protocols among the cockpit crew.