Though the Wrights’ reasons for placing the elevator in front of the wings were at first those just mentioned, they afterward found that this arrangement had much greater importance for two reasons not at first discovered. One of these was that it eliminated all danger of a nose dive when the plane got into what is known as a “stall”--when the speed became too slow. The other reason was that the elevator in front, set at a positive angle with the pressure on its under side, not only produced inherent stability, but also carried part of the load, and so relieved the wings to that extent. (An elevator in the rear, set at a negative angle to provide inherent stability, carries a pressure on its upper side, which adds just that much to the load the wings must carry.) Around the first of August, 1900, the brothers decided to build a man-carrying glider on which to try out their inventions. To get practice in operating it they would first fly it as a kite. For such kite flying, flat open country would be needed; and for the gliding, sand hills free from trees or shrubs. Once again they examined the reports they had received from the Weather Bureau at Washington. Several of the places where winds might be suitable were in the Far West, but one in the East, much nearer to Dayton, was a place with an odd name, Kitty Hawk, North Carolina. They decided to write at once to Kitty Hawk for further information. Wilbur Wright addressed a letter to the chief of the Kitty Hawk weather bureau station, asking for various details about the locality, explaining that he might wish to go there shortly to conduct experiments with a man-carrying kite. He inquired, too, if it would be possible for him and his brother to obtain board and lodging in the vicinity until they could get themselves established in a camp. Joseph J. Dosher, in charge of the Kitty Hawk station, who received the letter, replied briefly, on August 16, giving the direction of the prevailing winds; and he described the nature of the land for many miles.