A calibration system for aircraft control surface actuation, comprising: an inclinometer coupleable to an aircraft control surface, configured to provide measurement data of an inclination value corresponding to an angle at which the aircraft control surface is deflected; an adapter with a wireless transmitter module and an interface connector connected to the inclinometer, the adapter configured to receive the measurement data of the inclination value corresponding to the angle that the aircraft control surface is deflected, and to wirelessly transmit the measurement data; a wireless receiver device having a port connector; and a computing device connected to the wireless receiver device via the port connector to receive the measurement data, the computing device configured to determine if the inclination value corresponding to the angle at which the aircraft control surface is deflected differs by more than a predetermined amount from a directed deflection angle for the aircraft control surface, and to responsively communicate an adjustment amount to a controller configured to direct deflection of the aircraft control surface, based on the difference between the measured inclination value and the directed deflection angle for the aircraft control surface, wherein the system further comprises the controller that is a flight control computer, and the computing device is a component onboard an aircraft flight deck and is configured to generate an output signal to communicate the adjustment amount to the flight control computer, to cause the flight control computer to alter a control signal to an actuator for deflecting the aircraft control surface based on the adjustment amount, and wherein the inclinometer is a digital inclinometer and the wireless transmitter module is a radio frequency transceiver module. an inclinometer coupleable to an aircraft control surface, configured to provide measurement data of an inclination value corresponding to an angle at which the aircraft control surface is deflected; an adapter with a wireless transmitter module and an interface connector connected to the inclinometer, the adapter configured to receive the measurement data of the inclination value corresponding to the angle that the aircraft control surface is deflected, and to wirelessly transmit the measurement data; a wireless receiver device having a port connector; and a computing device connected to the wireless receiver device via the port connector to receive the measurement data, the computing device configured to determine if the inclination value corresponding to the angle at which the aircraft control surface is deflected differs by more than a predetermined amount from a directed deflection angle for the aircraft control surface, and to responsively communicate an adjustment amount to a controller configured to direct deflection of the aircraft control surface, based on the difference between the measured inclination value and the directed deflection angle for the aircraft control surface, wherein the system further comprises the controller that is a flight control computer, and the computing device is a component onboard an aircraft flight deck and is configured to generate an output signal to communicate the adjustment amount to the flight control computer, to cause the flight control computer to alter a control signal to an actuator for deflecting the aircraft control surface based on the adjustment amount, and wherein the inclinometer is a digital inclinometer and the wireless transmitter module is a radio frequency transceiver module.