What was the industry in which a major donor of funds for building the Integratron was influential?  
Integratron: The Integratron is a 38 ft tall cupola structure with a diametre of 55 ft designed by Ufologist and Contactee George Van Tassel. Integratron:  It was financed predominantly by donations, including funds from Howard Hughes. Howard Hughes: Howard Robard Hughes Jr. (December 24, 1905 – April 5, 1976) was an American businessman, investor, pilot, film director, and philanthropist, known during his lifetime as one of the most financially successful individuals in the world. Howard Hughes:  He first made a name for himself as a film producer, and then became an influential figure in the aviation industry.
aviation industry