| abstract | - The squadron conduced nuclear cloud sampling during atmospheric testing. The idea of atomic cloud sampling developed from atmospheric testing during Operation Sandstone in the spring of 1948. During the operation, an aircraft accidentally flew through an atomic cloud. An analysis of the radiation dosages received by the crewmembers was found to be minor and led to the realization that sampling could be accomplished effectively with manned aircraft. Analyses of samples collected from atomic clouds were considered the most accurate method of determining the efficiency and yield of a nuclear device. Air Force Special Weapons Center (AFSWC) scientists accompanied the squadron on sampling missions in order to assess effects on humans. The Atomic Energy Commission (AEC) recommended that the USAF establish an organization specifically for gathering cloud samples. In 1953, HQ, USAF approved a test squadron for sampling atomic clouds; the squadron was titled the 4926th Test Squadron (Sampling) and assigned to the 4925th Test Group (Atomic). The new squadron was created within AFSWC’s 4925th Test Group (Atomic), as the group, up to that time, had assisted the AEC and AFSWP in nuclear weapons effects tests and had actually developed operational techniques for airborne sampling of the effects. These included in-flight laboratories to gather airborne data on test results, piloted and drone aircraft to sample radioactive clouds, safety aircraft to measure radioactivity in areas surrounding tests, and nuclear-cloud-tracking aircraft to establish fallout patterns. Initially using the F-84G Thunderjet, The B-57B Canberra was first used during Operation Teapot in 1955. By 1956, the B-57B was a staple of the AFSWC sampling program. In addition to the dedicated men of the 4926th TS, many aircraft and crews were pulled from operational squadrons around the Air Force to help formulate procedures to operate successfully in a nuclear environment, if necessary. Flying the B-57, the 4926th Test Squadron (sampling) participated in many operations, the majority at the Nevada Test Site and the remainder at Eniwetok Atoll. With the end of atmospheric nuclear testing in 1963, the squadron was inactivated. It's personnel and aircraft were reassigned to the 58th Weather Reconnaissance Squadron.
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