CHAPTER Il, SECTION 3 The pad was 22x92 feet by 6 inches thick except for a 414-foot-wide portion 1 foot thick. Two 92-foot-long unistruts were placed on the thickened portion. A 10-kw, 3-phase generator supplied power to the 16x32-foot tent and ad- jacent launcher pad. STATIONS: 2150.01 through .04 SITE: Charlie USER: UCRL PURPOSE: Threshold Detectors PARTICIPATION: 3 STATIONS: 2131.01 through .05 DESIGN PSI: SITE: 2131.01, Mary; .02, Sally; .03, Wilma; .04 and .05, Yvonne CONSTRUCTION: 3-31-58/6-23-58 USER: UCRL cubes were strap-welded together to form a PURPOSE: Rocket Launchers angle frame platform was placed on the center of each float and contained clamps on top to fasten a 1-inch steel cable. The floats were anchored by the use of a hand-winch and anchor into the wind by a pair of anchors splayed on the leeward side. A 1-inch steel cable extended from the 2-foot platform to a steel rail driven into the coral in about 11 feet of water. One rail was provided for each pair of stations. PARTICIPATION: Sta. 2131.01, .02, .03, .05, Events 21 and 28; Sta. 2131.04, Event 20 DESIGN PSI: No overpressure CONSTRUCTION: 1-28-58 /4-20-58 Each station consisted of a concrete slab, and Stations 2131.01 through .03 also utilized a 16x32-foot tent. Two types of slabs were designed: one 10 feet square, 6 inches thick with a 314-foot-wide portion thickened to 1 foot; the Not designed for overpressure For each of these stations a pair of Navy float 10x7 feet. A 2-foot-high, 2-foot-square STATIONS: 2151.01 through .03 other 6 feet square, 6 inches thick. Both types contained two unistruts across the slab. Station 2131.01 utilized six 10-foot slabs and one 6-foot slab. Power was furnished to the tent SITE: Fox USER: UCRL PURPOSE: Threshold Detectors 2131.02 and .03 utilized nine 10-foot slabs and DESIGN PSI: and slab area by a 2-kw generator. Stations one 6-foot slab. Power was supplied by a 2-kw generator for Station 2131.02 and a 5-kw generator for Station 2131.03. Station 2131.04 utilized two 10-foot slabs and one 6-foot slab, and Station 2131.05 utilized eight 10-foot slabs and one 6-foot slab. Power for both stations was provided from the scientific line serving other stations on thesite. PARTICIPATION: 8 and 9 Not designed for overpressure CONSTRUCTION: 3-11-58/6-10-58 Each station consisted of a steel rail driven into the coral at the —5.0 Elevation. The top of the rails was at Elevation+6.0. A 1-inch cable was fastened to the pile and extended to Stations 2410.01, .02, and .03 respectively. STATION: 2132 STATION: 2200 SITE: Oboe SITE: Sugar USER: UCRL USER: UCRL PURPOSE: Bunker (Programmer) PURPOSE: Recording Station and Generator Room PARTICIPATION: 4 and 5 DESIGN PSI: Rehabilitation of Existing Station CONSTRUCTION: 1-7-58/3-8-58 Existing REDWING Station 191.01 was converted for use as Station 2132. The 12x25foot earth-covered concrete building was rehabilitated and provided with power from a 10-kw generator serving Station 2130 as well. ptation 1515 was located on top of the earthill. PARTICIPATION: All Bikini Events DESIGN PSI: 95 psi CONSTRUCTION: 11-14-57/8-1-58 Existing during Operation REDWING, this station was modified for Operation HARDTACK.The existing earth-covered building was of re-inforced concrete 43 feet square, 17 feet high with walls 3% feet thick and slabs 4 feet thick. This building was divided into three equalsized rooms: A, B, and C. The rooms were con- Page 113