I am flying my P3 Adv with tin foil taped to the top with no problems other than it will not go above 50 meters. Does anyone know how to get it to go higher? I am building a new Air Traffic Control Tower at my local executive airport and I need to take pictures of the work in progress. I have all the written permissions required and have been having great luck getting around the NFZ with the tin foil. However, I need to get a higher vantage point for pictures. Any help will be appreciated.