CHAPTER II, SECTION 3 existing and required only the addition of a new cab plus power and timing signals. The Station 1513 tower was removed from Janet and erected on the existing GREENHOUSEstation footings at Wilma. STATION: PURPOSE: SITE: 1514 Tower for Cloud and Fireball Photography Mack (Eniwetok Lagoon) USER: LASL PARTICIPATION: 1, 2, 3, 4, 6, 7, 19, 23 and 4 CONSTRUCTION: 3-17-56/6-30-56 Station 1514, located on coral head Mack in Eniwetok Lagoon, was a 75-foot steel tower erected on an existing platform supported by steel piling. To strengthen the platform of this station, new crisscross bracing was_ installed below the water line to a depth of 32 feet. A 14’x 14’ enclosed cab for housing User-furnished cameras was located at the top of the tower. Roll-up metal shutters were on three sides of the cab and a wall containing two hinged windows and a door was on the remaining side. These shutters, windows, and door were arranged to remain open until the shock wave had passed and then to close automatically by a timing signal. The floor of the cab extended 30 inches on the north and east sides to permit working space for adjusting camera lenses. The roof of the cab was capable of supporting a 1,000-pound load distributed over 4 square eet. An elevator with a capacity of 2,000 pounds and a 4’x 5’ platform was provided which operated by a hoist drum with 34”-diameter wire rope. A steel ladder was also installed for access. Racks of aluminum angles and of sufficient strength to carry an 8,000-pound load distri- buted over 20 square feet were provided for mounting cameras within the tower cab. Within the base of the tower, living quar- ters of wood frame construction were provided Figure 2-78. with sufficient space for four bunks, four lockers and a hot plate, refrigerator, sink and table. Station 1516 Power requirements for Station 1513 and 1515 were 10 KW, 120/208 volt, single-phase. For Station 1516, 8 KW, 120/208-volt, 3-phase power was provided. Timing signals for Station 1513 consisted of two each of the following: minus 15 minutes, minus 15 seconds, minus 5 seconds, an interlock and a monitor pair plus two spares. Stations 1515 and 1516 were identical except only one pair each were required. A total of 8 cubic yards of concrete was poured for Station 1513, 85 cubic yards for Station 1515, and 7-1/2 cubic yards for Station 1516. Page 2-92 A field-type latrine and a 500-gallon stainless steel tank for fresh water were also provided. Alongside of the tower platform was a generator platform 27’ x 13’ which also had to be braced. A 550-gallon fuel oil tank of 5/16” boiler plate was supported by two steel saddles. Mooring provisions were provided so that boats could be tied to either platform. A 25 KW generator provided for an 8 KW instrument load and the utility requirements. Ten pair of timing signal wires were installed to provide for minus 15 minutes, minus 15 seconds, and minus 5 seconds signals. A 16-pair submarine cable was terminated in a signal cabinet at the base of the tower.