Ir Air Force Base, Hawaii, and operated from Kirtland, Major Roy E, Ladd, who had commanded the first manned sampler during Operation RANGER, was the commanding officer.-° The.BUSTER/JANGLE Shots, The 925th Test Group (Atomic) had operational control over all aircraft in the test patterns. These included two B-SO indirect bomb damage assessment aircraft, one B-29 on the same mission, three C-l\7 photographic aircraft, one C-5 flash blindness aircraft, two B-29 paradrop aircraft, one P2V and one B-17 radiac aircraft, one C-h7 disaster aircraft, the bomb carrier, and, finally three T-33 and three B-29 samplers.-” Lieutenant Colonel Fackler and Major Travis M, Scott were in charge of the air plotting room which pin-pointed the positions of the samplers, trackers, and terrain survey aircraft,°° This function took place in the control point building, then in the process of being built at the Nevada Proving Grounds, was not available, There was no electronics equipment installed and radar Nevertheless, they secured three large sheets of plexiglas, edge-lighted them, and supplied the six plotters with colored pencils, One board plotted the progress of the aircraft flying from Kirtland Air Force Base; the second contained the plots of the aircraft in-the vicinity of the test site, in their orbits; and a final board formed a plot of the test site itself and had room to plot the course of the cloud trackers and the terrain survey aircraft. The activity in this control room began near midnight, continued through Li AFWLHO SWEH-2-003); Go Lae