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
Memorial of the War to Resist US Aggression and Aid Korea China's largest panoramic painting when the museum opened in 1993. The painting encircles a revolving viewing platform in the centre of the hall. The memorial tower is tall, which signifies the year 1953, when the Korean Armistice Agreement was signed. The tower's name is written in the calligraphy of Deng Xiaoping. Memorial of the War to Resist US Aggression and Aid Korea The Memorial of the War to Resist US Aggression and Aid Korea (), also translated as the Korean War Museum, is a museum in Dandong, Liaoning. It is the only official museum in China that memorializes the Korean