What occurs when the sidesticks are moved simultaneously?

When the sidesticks are moved simultaneously, the inputs are algebraically added. This means that the aircraft's control system takes the inputs from both sidesticks and combines them to determine the overall command signal that is sent to the flight control computers. In a situation where both pilots move their sidesticks simultaneously, the control system evaluates each input to compute the resultant control surface deflection.

Algebraic addition ensures that if both sidesticks are moved in the same direction, the control response is intensified, providing a more significant command input to the flight control surfaces. This feature allows for cooperative flying, enabling both pilots to make inputs to the aircraft control system effectively and responsively.

Understanding this principle is crucial for pilots as it allows them to work together seamlessly during critical phases of flight, ensuring smooth and effective aircraft handling.