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aeroplane, they decided to design and build one at once as the first venture. The Wright Field Co. was formed, land procured and North Field established on the site which later be came McCook Field. With the aid of Orville Wright and some of his earlier Dayton staff their first training plane, designated as Model FS, was in the air in eight weeks. A second was finished in another two weeks. Using these planes, Rinehart and Freeman conducted a flying school at North Field throughout the spring and summer months of 1917 and trained a large member of students, including many Canadians sent there under contract with the United States Government. Also during this period, Rinehart conducted the first preliminary flights on new aeroplanes for other Companies, including the Wright-Martin Model V, during March, 1917. The Dayton-Wright Co. was formed in April, 1917, and Rinehart was made chief experimental test pilot and put in charge of the flight staff. Factory facilities were not completed until August, at which time the Company started to build Standard J-1 Trainers. In October, the Government leased the North Field side for a central engineering post and experimental flying station to be know as McCook Field. At this time Rinehart and instructors Arch Freeman and Bernard Whelan permanently moved their operations to the Experimental Station at South Field near the main Dayton-Wright plant. There they conducted the first flight tests of the Dayton built Standard Trainers, and early in November Rinehart started flying the first Dayton-Wright built DH-4 with Liberty-12 engine, an all hand-made plane built at South Field by a small group of former Wright Co. mechanics. He did considerable test flying in that first DH during the fall, laying the ground work for several thousand of them, later made in production. That first DH was later assigned to the National Air Museum in Washington, D. C.

Throughout World War I Rinehart continued as test pilot and advisor to both the Dayton-Wright Co. and the Government concerning new aeroplanes and equipment. During that period he made several notable flights. November 2, 1918, with Milton Bauman as a passenger, he made a new 2-man altitude record of 22,400 ft. in a DH-4 on a test flight at South Field. November 30 he flew C. F. Kettering from Dayton to Mineola, Long Island, non-stop in 4 hours, 10 minutes, using a DH-4. June 17, 1919 he flew M. H. Talbott from Dayton to Mineola non-stop in 4 hours, in a DH-4, and on July 19th flew Mr. Kettering from Wichita, Kansas, to Dayton non-stop in 7 hours, 45 minutes.

In 1920 the Dayton-Wright Co. was purchased by General Motors but continued to design and build several experimental aeroplanes, including the Rinehart-Baumann special race plane which Rinehart 

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