shortly after entry into the cloud, RED Leader heard heavy breathing over the radio as someone inadvertently held their mike button down. Then ‘ called, saying that he had "recovered at 20,000 feet," instructed RED 3 and RED-l to get together and return to the B-36 and the “tanker for refueling, After acknowledging, RED-3 and RED-) were switched to another radio channel for rendezvous instructions from the Control B-29, and did not. hear the remainder of their story, 10 In 1953, Dr. Alvin C. Graves, Los Alamos Scientific Laboratory, issued a directive whichdetailed sampling techniques and requirements of the laboratory over the next several years, Dr. Graves predicted correctly that techniques and réquirements would not change mich even though sampling moved in the direction of higher altitude performance and longer flight time capabilities at altitude. He foresaw no drastic changes in the filter equipment, power requirement, aircraft instrumentation, and support aircraft, only a refinement and sophistication would be acquired through experience. Some of these techniques as worked out by Los Alamos officials were 1, Sampling Descriptions Lele Filter Samples: 1.1.1, Filter samples of the type presently collected will be required, It is most probable that the filter unit will be designed within the shape of an acceptable store already desiged - __for use with an available aircraft. 1.1.2; Depending upon the size of the external store, the filter unit will contain a filter panel with between 2 and square feet of paper. Depending upon the internal fuel capacity of © the aircraft,. the filter unit may or may not contain fuel, 215 sewer SWEH-2-003h yo