Airborne wind energy (AWE) is an emerging technology that can help Belgium to reach its offshore renewable energy targets, by capturing wind at higher altitude with limited materials and by reusing existing foundations of old wind turbines. Simulation tools are being developed to analyze these new devices, but there is no suitable validation data available. Therefore, MAVERICK will perform a flight demonstration campaign with a large (12m wingspan) existing AWE system, to generate data to validate the tools and perform fundamental studies for offshore repowering with AWE systems.