During the war, Wright Martin had followed the other alternative to engine construction; they had bought a license to manufacture the famed French Hispano-Suiza engine. And although this procedure had been advanced as promising quicker returns, wartime experience had developed the complexities of putting foreign models into production. Designed around the European idea of handwork by skilled craftsmen, they had to be redesigned to conform to the American technique of machine-tool production. And so experience had demonstrated the necessity for having domestic types in production and ready for expansion. After the Armistice, the new Wright Aeronautical Corporation continued to develop the Hispano type, under the aegis of the Navy Department. Using the method of “run’em, bust’em, fix’em, and run’em again,” financed by the Engine Section, Wright had developed its temperamental wartime Hispano into a rugged, 200-hp Model E-4. Wright had also developed a 300-and later a 500-hp-model Hispano, but since Congress had appropriated limited funds, and on a hand-to-mouth basis rather than for a long-term program, they had found the going rough. As long as the surplus of wartime Liberties and Hispanos hung over the market, manufacture bogged down. And to add a further complication, Leighton had shown a lively interest in the new air-cooled engine developed by Charles Lanier Lawrance. Charlie, while a student in Paris, had discovered the new 3-cylinder 60-hp Clerget, a fixed radial engine designed to overcome the deficiencies of the old Gnome-Rhone types with their rotating cylinders and gyroscopic effects. The Navy had at that time a demand for 180- to 200-hp engines, and suggested that Lawrance consolidate three of the 3-cylinder engines into a single 9-cylinder type. Lawrance, with no production facilities of his own, had enlisted those of the de la Verne Machine Company, in New Jersey, and had begun his own development under the “run’em and bust’em” technique. In this he had looked for guidance to Capt. A. K. Atkins and Lt. Comdr. S. M. Kraus, of the Bureau of Engineering. When, later, Admiral Moffett created BUAERO, he placed Kraus in charge of Procurement and assigned Leighton as Chief of the Engine Section. Meanwhile, Chance Vought, a clever airplane manufacturer in Long Island City, had built a smart little, two-seater, catapult-observation plane around the new engine, a craft that carried as much load as the Army DH using the Liberty engine, yet took up half as much space. And space was a critical factor within the narrow confines of a battleship or a cruiser’s decks.