The third board was the "Morrow Board", a "blue ribbon" panel convened by President Coolidge in September 1925 to make a general inquiry into U.S. aviation. Headed by an investment banker and personal friend of Coolidge's, Dwight Morrow, the board was made up of a federal judge, the head of the National Advisory Committee for Aeronautics, former military officers now in industry, and the wartime head of the Board of Aircraft Production. The actual purpose of the Morrow Board was to minimize the political impact of the Mitchell trial, and Coolidge directed that it issue its findings by the end of November, to pre-empt the findings of not only the military court but also of the Lampert Committee that might be contrary to the Morrow Board. Its report was released on December 3. The major result of the Morrow Board was to maintain the status quo. It also made the recommendation, adopted in 1926, that the Air Service be renamed the "Air Corps", but in doing so Congress denied it the autonomy enjoyed by the Marine Corps within the Navy Department, and thus the change was only cosmetic and the Air Corps remained as an auxiliary arm to the ground forces.