Stat 28a + - The 28a, Engebi and Runit, Agmon Group ~ NOBL, Stations 29a through k - Engebi_ ~- NOBL. Stations 30a, b dc - Engebi, These were small, 6 foot by 5$ Same as Station Same as Station 28a The Aomon Gr and it_- NOBL. foot interior dimensions, wood buildings used to store the component parts of the rockets, (See Station 32). The description was furnished to H&N orally by AEC, The building was protected from the blast by providing earth cover on the front, sides, and roof, On October 20, 1950, Stations 30a, b, and c on The Aomon Group were relocated, Stati a through e - Runit and Engebi - NOBL, Although the rocket launchers required no engineering by H&N, the Civil Department was kept busy locating and relocating them on the site plans. The original locations were established by the first Los Alamos Instrument Chart. On January 16, 1950, it was necessary to move Station 32c on The Aomon Group because of relocation of Station 125, On February 10, 1950, Station 32a on Runit was relocated due to changing shore line of the island, On February 15, 1950, Station 32d on Runit was authorized, and on October 21, 1950, Station 32b on Runit was deleted, Another change in shore line necessitated moving Station 32c on Runit on December 23, 1950. Stati t bi bi and Runit ~ NOBL, Stations were essentially the same as Station 27 except that the gauges were each mounted on a 2 inch diameter steel stake instead of several being mounted in a concrete foundation. The stakes were 6 feet long with a threaded section at the top for fastening either a driving head for pounding the stakes into the ground or for fastening the ball-crusher mount. In order to give proper access to the base of the 300 foot tower on Engebi, it was necessary to move Stations 33a and b on October 27, 1950. Stations 348 through d - Engebi and Runit - NOBL. Same as Station 33; the only difference was that these stations were located along a different line raaiating from zero, On February 23, 1951, it was necessary to move Stations 34a, b, c, and d on Runit. Station bi, The Aomon G ad Runit - NOBL, This was a 15 foot long boom hung from the zero towers to support the pretest dynamite explosion for calibrating the velocity gauges. a rope and pulley rig. J-Division on June 14, 1950. construction, The charge was placed by The design information and location were given by No trouble was encountered in the design or Stations 36a through f - Engebi, and Stations 36a through e - Runit and The Aomon Group - NOBL. These ground shock stations were holes in the ground to a depth where a steel mounting plate could be secured to the rock formation, The shoring of the hole was accomplished by use of 36 inch diameter, 12 gauge corrugated steel pipe, The mounting plate 5-161