CHAPTER It, SECTION 5 form on top. The platform had a hand rail on all four sides and a caged ladder to the ground. ENGINEERING. Stations 1560.01 thru 1560. 05 were designated on the Instrumentation Chart for Project 15.1 (Optical Alpha). On 14 September, criteria were received solely for Station 1580.02. All work on the other tour Stations was therefore held in abesance. Design work for Station 1560.02 was started on 15 September; one drawing was submitted on 17 September and approved on 2 October. Stations 1460.01 and 1460.03 thru 1560.05 were included with the Test Barges. CONSTRUCTION. Work was scheduled to start on 15 December and to be completed on 31 January 1954. Actual construction started on 1 December and was completed on 15 January 1954. Figures 2-74, 2-74 under Station 20, and Figure 2-132 under Station 1351 notes Station 1560.02 as completed. STATION 1586.01 ANTENNA AND TRAILER - SITE NAN USER: LASL GENERAL. This Station, used to determine Electromagnetic Ettects, consisted of two antennas and a trader. The antennas were tastened to a non-emetallie rramework of six power poles arransed to form a tower. Phis tower was lo Ox GO 955-2 0" igh with three narrow the Working platiorms. Station completed February 1054, Figure 2-141) shows with trailer a- of 4 ENGINEERING. Phe original design criteria were recened oun bs September 19545. Design work started on 22 sceptember and two drawings were submitted on 14 October and ap- proved and issned on 23 October. CONSTRUCTION. Work was scheduled to commence on | November and to be completed on 31 January. Actual construction started on 15 December and was completed on 26 January 1954. STATION l5ei - ANTENNA - SITE DAVID USER: LASL GENERAL. This Station was added in March 1954 due to the rescheduling of the Test: Program. “The work involved consisted of setting a 70-foot pole in a ten-toot concrete lined hole. Two generators and telephone service were installed. The Station was used to determine electromagpnetic erfects. ENGINEERING. Field Engineering prepared field sketches as required. CONSTRUCTION. Work commenced on 9 March 1954 and was completed on 13 March. STATION 1801 - PLATFORMS - 200 FT. and 275 FT. LEVELS ON 300 FT. TOWER USER: NRLS GENERAL. This Station, used for thermal measurements, consisted of a pair of roofed-over platforms with canvas covered sides mounted at the 200-foot and 275-foot levels of the 300foot steel tower which comprised Station 1300. A pipe framework was provided for mounting equipment. This consisted of a horizontal pipe about 20 feet long carried on pipe outriggers attached to the tower framework. ELECTRICAL. This Station was served eleetrically from Station TO by panel “PIX” located on the 275-foot level. Both the 200-foot and 275-foot levels were wired in rigid conduit with standard industrial lighting fixtures. Recepta- cles, sivnal cabinet. and a telephone outler were located as requested by the User. Figure 2-141. Station 1580.01 - Comp! >ted ENGINEERING. Initial criteria were received on 12 May. Additional criteria were received on 12 June. The design work is reported under Station 1300. + Page 2-133 ae v ee ee beaeden ee