oO?” Figure 2-47. CHAPTER II, SECTION 3 Stations 121.01, 160.01 and 115.01 (Right to Left) USER: DOD-1 PARTICIPATION: 18 and 22 CONSTRUCTION: 3-7-56/4-23-56 These stations consisted of a 40’ x 80’ cleared area for rocket launchers, a 2 KW gasoline engine generator, and a 14’ x 14’ tent with work bench. All obstructions over 25 feet high and within 100 feet of each station were removed. Minus 15 seconds and minus 5 seconds timing signals were provided. STATION: PURPOSE: SITE: USER: PARTICIPATION: CONSTRUCTION: OCCUPANCY: 150.01 Raydist Relay Station Able DOD-1 18 4-4-56/4-14-56 4-9-56 This station served as 150.01 for the Cher- okee event only. For succeeding events it be- came the concrete shelter for Station 560.01. Refer to Station 560.01 for further details. STATIONS: PURPOSE: SITES: USER: PARTICIPATION: CONSTRUCTION: OCCUPANCY: 151.01 and 151.02 Drag Response Stations Able and Dog DOD-1 18 2-28-56/4-18-56 4-14-56 These stations consisted of User-furnished spheres mounted on top of 6” pipe columns, 3’ high. Two 3” spheres and one 10” sphere were mounted at each station. The pipe columns were Figure 2-48. Station 130.01 embedded in a concrete foundation which was 4’ x 11’ x 3’ deep. Each pipe column was connected to a junction box by conduit. Cable was drawn through this junction box and thence to a recording station. Because the depth of sand above the coral at these locations was approximately 5.5 feet, it was necessary to drive 12-inch H-piles to support the concrete foundations of the stations. These piles were driven to a total penetration varying from 15.5 to 17.0 feet; average penetration into the coral was 10 to 12 feet. Concrete poured for each station was 5 cubic yards at an average 28-day strength of 3,900 psi. Page 2-63