ll known; he is the author of the air. After many trials, M. Tatin finds the larger proportion cluded that it would be necessary to produce this torsional of advantage to be with long and narrow wings. Other in- vestigators have already shown that a wing may be as effec- French Imperial Government.… … which would not bend like the former, but which would slide one on the other during the torsion. This apparatus Fig. 1. worked admirably in the model; but when tested on a ) larger scale the results were inferior, and led the authorto return to the silk wings, which he now definitely adopts. By…
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