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 | FRANKLIN ENGINES, 1963, brochures with specifications & drawings. $2.50 |
 | CONTINENTAL MOTORS, 2003, 28 page color brochure on continental motors. $3.50 |
| BIRDFLIGHT AS THE BASIS OF AVIATION, Lilienthal, Otto, American Aeronautical Archives, 2001, new, soft cover, see photo, reprint of Lilienthal's observation, analysis, ingenuity and daring laid the foundation for the development of aviation. After a comprehensive scientific study of how birds fly, Lilienthal recognized the superiority of curved wing surfaces. He then developed a theory of flight and designed and built a series of gliders. From 1891 to 1896 he made over 2,000 glides, illustrations, 151 pgs. | $10.00 |
| NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS - TECHNICAL NOTES | |
| PRACTICAL AERONAUTICS, Hayward, Charles, American Technical Society, 1917, vg (inked name, the spine has been professionaly rebuilt), originally published in 1912, this is the 1917 edition which was updated to 1917, Example of illustrations, the theory of and history of balloons, dirigibles & aviation and aero engines. There are also descriptions of more than 30 current aircraft types, photos & many illustrations, 769 pgs. | $100.00 |
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