+------------------------------------------------------------------+ |Transcriber's Note: | | | | | |On page 15: | | | |Wilbur, who was at one end, seized it in front, Mr. Daniels and I,| |who were behind, tried to stop it behind, tried to stop it by | |holding to the rear uprights. | | | |has been changed to | | | |Wilbur, who was at one end, seized it in front, Mr. Daniels and I,| |who were behind, tried to stop it by holding to the rear uprights.| | | | | |On page 21: | | | |Lilienthal was the first to discover this exceedingly though our | |measurements differ considerably from those of Lilienthal. While | |important fact, which is fully set forth in his book, "Bird | |Flight the Basis of the Flying Art," but owing to some errors in | |the methods he used in making measurements, question was raised | |by other investigators not only as to the accuracy of his | |figures, but even as to the existence of any tangential force at | |all. Our experiments confirm the existence of this force, at Kitty| |Hawk we spent much time in measuring the horizontal pressure on | |our unloaded machine at various angles of incidence. | | | |has been changed to | | | |While our measurements differ considerably from those of | |Lilienthal, Lilienthal was the first to discover this exceedingly | |important fact, which is fully set forth in his book, "Bird | |Flight the Basis of the Flying Art," but owing to some errors in | |the methods he used in making measurements, question was raised | |by other investigators not only as to the accuracy of his | |figures, but even as to the existence of any tangential force at | |all. Our experiments confirm the existence of this force. At | |Kitty Hawk we spent much time in measuring the horizontal | |pressure on our unloaded machine at various angles of incidence. | +------------------------------------------------------------------+