a Bafety check and this information was once again relayed to ° Following the detonation, the FJ-4s and A4Ds were cleared to return to base and land, their requirements having been met. The B-52 remained airborne for approximately another hour and thirty minutes ing the detonation. to complete its testing follow- Starting at H plus fifty-five minutes and following at fifteen minute intervals, three (3) B-57 sampler aircraft took off. The Air Operations Center vectored them to the airborne Sampler Controller who then assumed control and directed the aircraft in their penetrations of the nuclear cloud. As each aircraft collected its required sample, the Controller released them to the controller in the AOC who expedited their return to the airfield to prevent any unnecessary radiation exposure. The tower gave landing priority to the sampling aircraft and after landing, cleared them to the sample recovery area. quickly evacuated from the aircraft. In this area, the aircrew waa The filter paper was then removed by sample recovery personnel and placed in lead "pigs" for return te the labratories in the ZI. After all the sampler aircraft and the controller had landed, the SA-16 aircraft was cleared to land. A report to the Joint Task Force Command Post was made by the Air Operations Center when ali aircraft were safely on the ground. After landing, all effects and sampling aircrews were debriefed by the Test Aircraft Unit Operations Officer, and on the following day a critique was held for all aircrews and responsible ground agencies to determine problem areas generated by the event. See Figures 27 and 28 for photographs of the mission control boards in the Air Operations Center. AFWL/HO “ON \y 152