Hewitt-Sperry Automatic Airplane and Lawrence Sperry decided that he would be the test pilot. While taxiing it on ice, he hit some slushy snow, and wrecked the plane, though Sperry was unhurt. A second airplane was fitted out, and Sperry managed to get it in the air, but lost control when the automatic pilot was engaged. After two complete rolls, Sperry managed to regain control and land safely. Clearly, though, more attention to flight testing the basic design was needed, particularly in the area of handling qualities. Sperry and his assistant, N. W. Dalton, obtained a Marmon automobile, and mounted the Curtiss-Sperry Flying
The Invention of the Jewish People Ilani, most of Sand's book deals with the question of where the Jews come from, rather than questions of modern Jewish nationalism and the modern invention — according to Sand — of the Jewish people." Therefore, some historians of Judaism have stated that Sand is dealing with subjects about which he has no understanding, and that he bases his book on work that he is incapable of reading in the original languages. Sand admits that he is "a historian of France and Europe, and not of the ancient period…" and that he has "been criticized in Israel for writing about