48 CHAPTER Il, SECTION 3 SECTION 3 SCIENTIFIC STATIONS INDEX OF EVENTS ZERO STATIONS EVENTS 1 Kickapoo 2 3 4 6 Yuma Mohawk Inca Erie 7 Blackfoot 10 11 Huron Navajo 12 Apache 13 14 15 18 Flathead Dakota Tewa Cherokee 22 23 Zuni Seminole 19 All tower shafts were free from lateral bracing, which enabled the User to place pipes for data collection within the shaft without structural interference. The towers were designed for uniform press- ure effects with the exception of Station 7, which required additional guying to withstand an earlier test event. Weights of the constituent materials utilized in each 100-foot section of the tower were established and furnished to the ser. Osage heahak LaCrosse admntcaphocaa The above list shows the zero stations in numerical uence with the applicable event names as used in Operation REDWING.In the text that follows, the participation of each station in various events is shown by listing the appropriate zero Station. The stations are described in numerical order, including information as to purpose, location, User and starting and completion dates of construction. Tarothraaal te 1 and 2, Sally; 3, Ruby; 4, Pearl; 5, Janet; 6 and 7, € SITES: 1, 2, 3, 4, 5, 6, 7 Zero Towers é STATIONS: PURPOSE: mere olgennnig—-aio tearing 24 Yvonne USERS: LASL and UCRL CONSTRUCTION: Station 1, 8-29-56/5-2-56; Station 2, 10-26-56/5-2356; Station 3, 11-14-55, 6-4-56; Station 4, 11-3-55/ 6-4-56; Station 5, 1-9-56/ (Work stopped 4-17-56 at Station 6, 48% progress); 10-11-55/5-26-56; Station 7, 1-16-56/6-8-56. Stations 1, 3, and 6 were 300-foot steel towers, and Stations 2, 4, and 7 were 200-foot steel towers; each had a 100-ton capacity cab. In order to maintain flexibility in use, the towers were designed in 100-foot increments, which permitted increasing their heights from 100 feet to as much as 300 feet, requiring only adjustments to the footings and guys. Tower components were fabricated in 25-foot modules for ease of erection. Figure 2-26. Station 4 Complete Except for Final Tensioning of Guy Wires Each tower had an elevator with a 9-foot x 7-foot platform and a lifting capacity of 6,000 pounds of freight or a passenger conveyance of 2,000 pounds. Lifting power for the elevators was provided by seven hoists which had been previously used at the Nevada Test Site. Hoisting speeds were maintained at 75 to 100 feet per minute. The hoists were removed prior to each event, and in the case of Station 7, the hoist was made portable, thus enabling rapid recovery between experiments. Page 2-45