IT On 26 March 1952, test aircraft and crews, maintenance personnel flewfrom Kirtland to Indian Springs Air Force Base. Colonel Fackler set up his air control facilities, On the same day The sampler unit established headquarters in a large Quonset hut on the east end of the flight line where the samplers had their briefing room as well,” Besides controlling all test aircraft, Colonel Fackler had yet another function. After the weather briefing, the night before a scheduled shot, Colonel Fackler analyzed the report and advised the test director, Dr. Graves, on expected conditions, If there was to be more than 0,3 cloud cover at the time of the shot, Colonel Fackler announced that jet sampler aircraft would not be permitted to fly. Cloud cover could be a serious matter for if the samplers were some 200 miles from Indian Springs when they completed their cloud penetra- tions, they would fail to return because of their time and fuel limitations ol Sampling TUMBLER/SNAPPER Clouds. On the morning of 30 March 1952, a Special Weapons Command bomber dropped a "pumpkin" (high explosive bomb) in the dress rehearsal for the tests,” The controller aircraft was on orbit while the B-29 sampler made passes at the cloud and, the four 3-33 jet samplers came from Indian Springs for simlated sampling passes, Rehearsals went well and all sampling crews met in the Quonset hut later in the day to discuss last minute changes ws & ~ Two days later, on.1 April 1952, the Command became the Air Force Special Weapons Center, under the Research:and Development Command, 53 APWLKO SWEH-2-003); 4> sen