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at Farmingdale, Long Island, New York, where he assisted in the development of a 2-seat pusher amphibian flying boat. Spencer was there until 1940 when he sold his interest in the firm and the name was changed to the Colgate-Larsen Company of Amityville, Long Island, New York.  Following this he designated and constructed an-other light sport amphibian which he intended for the post-war market.

During World War II he was a test pilot for Republic Aviation Corporation, Farmingdale, New York, on military aircraft, and while there assisted in the design and development of the well-know Republic "Seebee" 4-place amphibian which gained much public acceptance after the war.

In 1945 Spencer went wets to join Lear, Incorporated as a staff assistant at San Monica, California where he remained until hi retired.

Since retirement, and still living in California, he has been active in the design and development of rubber-powered model toy ornithopters which fly successfully and which have been made by concerns that bought manufacturing rights from him and who have sold them through toy stores everywhere. This was then followed by a larger gas-powered {flying model} version of the {ornithopter} same type model. {Following many successful demonstrations, this is now in the National Air & Space museum collection.}

Spencer is a member of the Early Birds, QB's and National Aeronautic Association. He holds Commercial Pilot License No 468 and Connecticut State License No. 17.

Flying Pioneer,Early Bird Percival H. Spencer is indeed an extraordinary aviation pioneer, having devoted his entire lifetime to the engineering, building, developing and flying of aircraft. Self-taught at an early age, he went on to become and outstanding figure in the aviation work and few men have contributed more to the development of aviation progress in the United States. Ingenious, creative and ever active his name ranks high in American aviation history.
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