Aviation has seen immense progress across most of its areas, yet, cockpit flight control interfaces (sticks, yokes, pedals and thrust levers) remain fundamentally unchanged. New technologies have emerged that have successfully been employed in other fields of technology regarding human-machine interaction, one such technologies is eye tracking. The pilot is a fundamental element even in modern aircraft with high levels of computerized assistance. Emergency situations or environmental factors can lead to a situation where a pilot is overwhelmed by simultaneous tasks and this can lead to the conditions for an accident. With these points into consideration, a modernized flight control interface is proposed where eye tracking is used as a complementary input for yokes, side sticks and pedals. Review of literature and previous research suggests that this application has considerable merit for its potential benefits, this proposal uses equipment available at the Centro de Competencia em Manufatura (CCM) of the Aeronautics Institute of Technology (ITA) to develop a prototype that enables the study of feasibility of using gaze as part of a flight control interface. Results show that the proposed system has a clear positive impact in the experience of pilots during simulated flight testing, the data generated during this thesis shows considerable potential for further study and a series of derived studies and experiments are proposed.