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| | Curtiss JN-4D Jenny |
 | | Curtiss added the letter N to the designation because the modified Model J incorporated significant features of his Model N. The designation officially became the JN-2. |
 | | The performance of the JN-2 was less than satisfactory, so Curtiss improved the design with the substitution of unequal span wings (like the original modified Model J), and ailerons on the upper wings only with a wheel to control them in place of the outmoded yoke system. |
 | | At the same time, Curtiss began an extensive marketing campaign highlighting the many civilian applications of the Jenny, which included commuting, photo-mapping, policing, medical use, forest patrol, real estate work, and pleasure flying, proclaiming that "the JN is a good machine for the sportsman. |
| www.nasm.si.edu /research/aero/aircraft/curtiss_jn4.htm (1839 words) |
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