CHAPTER Il, SECTION 3 This 100-foot-high triangular lightweight steel tower station was guyed at the 90-foot level. On top of the tower were a pair of User-furnished outrigger beams which supported specimens at that level. A sheave assembly was provided at the outriggers to place the specimens. STATION: 861 SITE: Yvonne USER: DOD/WADC PURPOSE: Speed of Sound Measurements PARTICIPATION: 20 DESIGN PSI: None CONSTRUCTION: 4-17-58/4-26-58 Located in a 50x100-foot stabilized area, this station was composed of a User-furnished pipe and tripod assembly. (Neg. No. W-V-414-6) Figure No. 2-34. Station 810.01. The two camera mounts were located about 40 feet in front of the shelters. Each consisted STATION: 862 SITE: Nan USER: DOD/WADC PURPOSE: MSQ Radar Tracking PARTICIPATION: None of a pair of 8-inch pipes, 5 feet high, and fastened together with 14-inch side plates. The mounts were set in a 4x7x3-foot-deep concrete footing DESIGN PSI: STATION: 831 SITE: How The station consisted of a stabilized area used for parking MSQ trailers. Timing signals were provided. With the relocation of the ABMA Program, this facility was cancelled. USER: DOD/EG&G PURPOSE: Zenith Tracking STATIONS: 870.01 and .02 SITE: Yvonne USER: DOD/CWL PURPOSE: Thermal Flux which also contained a 2x3x2-foot-deep hole for use as a battery box. PARTICIPATION: None DESIGN PSI: None CONSTRUCTION: 3-10-58/3-10-58 This station consisted of a 10-foot-square concrete slab near the 75-foot tower, Station 92.03. With the relocation of the ABMA Program, this facility was cancelled. STATION: 860 SITE: Yvonne USER: DOD/WADC PURPOSE: TV Tower None CONSTRUCTION: 3-24-58/3-27-58 Measurement PARTICIPATION: 1 and 15 DESIGN PSI: None CONSTRUCTION: 7-21-58/7-27-58 User-furnished submarine-type steel shelter stations were installed underground in holes 5144 feet deep and 6x9-foot clear at the bottom and backfilled to the lip of the hatch with sand a One timing signal was provided to each shelter. PARTICIPATION: 20 STATIONS: 871.01 and .02 DESIGN PSI: SITE: Yvonne USER: DOD/CWL None CONSTRUCTION: 3-31-58/4-5-58 Page 88

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