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built Standard Trainers, and early in November Rinehart started flying the first Dayton-Wright-built [[strikethrough]] DH-4 [[/strikethrough]] DeHavilland-4 with Liberty -12 engine, an all handmade plane built at South Field by a small group of former Wright Company mechanics. He did considerable test flying in that first DH during the fall, laying the ground work for several thousand of them to be made later in production. That first DH was later [[strikethrough]] assigned to the National Air Museum [[/strikethrough]]transferred by the Army Air Service to the Smithsonian Institution in Washington, D.C.

Throughout World War I Rinehart continued as test pilot and advisor to both the Dayton-Wright Company and the Government concerning new [[strikethrough]] aero [[/strikethrough]] airplanes and equipment. He and Arch Freeman put on a great flying program for the Society of Automotive Engineers' Summer Meeting held in Dayton on June 17 [[strikethrough]] th [[/strikethrough]] and 18 [[strikethrough]] th [[/strikethrough]], 1918. During that year and the postwar period Rinehart made several notable flights. On November 2, 1918, with Milton Baumann as a passenger, he [[strikethrough]] made [[/strikethrough]] established a new 2-man altitude record of 22,400 feet in a DH-4 [[strikethrough]] on [[/strikethrough]] during a test flight at South Field. November 30th he flew Charles F. Kettering from Dayton to Mineola, Long Island, nonstop in 4 hours, 10 minutes using a DH-4. June 17th, 1919 he flew H.E. Talbott from Dayton to Mineola nonstop in  [[strikethrough]] 4 [[/strikethrough]] four hours, [[strikethrough]] again in a DH-4, [[/strikethrough]] and on July 19th, again in a DH-4, he flew Mr. Kettering from Wichita, Kansas, to Dayton nonstop in [[strikethrough]] 7 [[/strikethrough]] seven hours and [[strikethrough]], 45 [[/strikethrough]] forty five minutes. 

In 1920 the Dayton-Wright Company was purchased by General Motors Corporation, however, the company [[strikethrough]] but [[/strikethrough]] continued to design and build several experimental [[strikethrough]] aero [[/strikethrough]] airplanes, including the Rinehart-Baumann special race plane which Rinehart flew in the Gordon Bennett Trophy Event in France in the fall of 1920. This plane was [[strikethrough]] remarkably [[/strikethrough]] unique [[strikethrough]] for [[/strikethrough]] because of its full-cantilever wing, variable-camber airfoil, [[strikethrough]] using [[/strikethrough]] flaps, and a fully re-tractable landing gear. [[strikethrough]] which [[/strikethrough]] This was [[strikethrough]] probably [[/strikethrough]] one of the [[strikethrough]] FIRST [[/strikethrough]] first practical applications of wheel retraction, [[strikethrough]] as is [[/strikethrough]] now used on [[strikethrough]] all many [[/strikethrough]] most modern airplanes. A control problem forced it out of the race. Rinehart continued as test pilot and development engineer for the Dayton-Wright Company until June 1 [[strikethrough]] st [[/strikethrough]] 1923, when General Motors Corporation sold the assets of the company to the Consolidated Aircraft Corporation. 

Following this, Rinehart [[strikethrough]] returned to the Wright-Martin Aircraft Corporation and [[/strikethrough]] was sent to Europe to supervise the construction and tests of a new all-metal plane at the Dornier Company. This did not work out so he returned to Dayton, 

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