For living quarters the Wrights continued using a tent. To provide more space they erected a combined glider storage shed and workshop, the building of which they undertook on arrival at camp in 1901. Fresh water was secured nearby by driving a pipe 10 feet or more into the sand. [Illustration: The Landing] Their new campsite was located 4 miles south of Kitty Hawk, about 1,000 feet north of Kill Devil Hill, which they had used for gliding the season before and which they now realized offered the best test opportunities. Near the camp were four dunes formed of sand heaped by the winds. These dunes were collectively named Kill Devil Hills. They were constantly changing in height and slope, according to the direction and force of the prevailing winds. Using three of the four Kill Devil Hills for gliding experiments during the period 1900-1903, the Wrights called these the Big Kill Devil Hill, the West Hill, and the Little Hill. [Illustration: The second glider was stored in the wooden shed while the tent served as living quarters at Kill Devil Hills in 1901. Here Wilbur and Orville spent many hours discussing their experiments.] On the 1901 trip to camp the brothers brought with them parts to be assembled into a larger glider than the one tested in 1900. Knowing it would be impractical to house the larger glider with them in the tent, as they had done with the smaller one, they built a rough frame shed for the new glider and for use as a workshop. This building was 25 feet long and 16 feet wide. Its ends were hinged at the top near the gable parts to form doors so the glider could be removed or stored easily. The doors also served as awnings at the ends of the building. When assembled, the new glider had a wingspan of 22 feet. It weighed 98 pounds, nearly double the weight of the earlier glider. To give it greater lifting power, the glider had a total lifting area of 290 square feet, considerably larger than the 165-foot wing area of the previous glider. The 1901 glider was a much larger machine than anyone had ever dared try to fly. It had the same system of control and general design as the first one. The Wrights increased the camber in this glider, from 1 in 22 to 1 in 12 to conform to the shape prescribed by Lilienthal’s tables of air pressure. Chanute and others had used these tables, and the brothers were rudely surprised upon finding that wings with a camber of 1 in 12 were even less efficient than the 1-in-22 camber wings they had used in 1900.