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poration at Glendale, Claifornia, where he designed and built an excellent 2-place training monoplane and some special planes for movie work. In May, 1928 he was completing a 7-passenger high altitude plane of low landing speed.  All aerodynamical calculations were based on 7,000 ft. altitude instead of sea  level.  In flight tests the plane had a remarkable performance, using a 260 H.P. Menacso-Salmson 9 cyl. radial air-cooled engine.  This plane was primarily designed to transport Los Angeles Hunting Club members to high mountain landing strips.

In November, 1928 Timm announced the "Collegiate" high wing monoplane.  This was a rugged tandem open cockpit machine for training and sport use.  It was first equipped with a 10 cyl. 120 H.P. Anzani engine but later Kinner and Curtiss Challenger engines were used.  It was designed and built to meet U.S. Army specifications and was later granted A.T.C. No. 180.

In February, 1930 Timm was working on an 8-place high wing twin engine cabin monoplane with 3-wheel landing gear, which was to be ready for initial tests in April.  Reportedly his business closed during the depression days of the 1930's and he then became engineer and Manager of the Pacific Air-motive Corporation at the Union Air Terminal, Burbank, California.  Later, as business conditions improved, he left them to again start a shop of his own at Grand Central Air Terminal, Glendale, California.  His brother, Wally Timm, who had worked with him before in some of his various undertakings, was with him again in this latest venture.
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