GLOSSARY OF TERMS AACS Airways and Air Communications Service ADG Air Defense Command Atomic Energy Commission Air Force Flight Test Center AFSWC Air Force Special Weapons Center AOC Air Operations Center ARDC Air Research and Development. Command ATG Air CASTLE Spring 1954 overseas nuclear and thermonuclear Task Group tests at the Pacific Proving Ground cIC DCS Deputy Chief of Staff FEAF Far East Air Force GCA GCI GREENHOUSE Combat Information Center Ground Controlled Approach Ground Control Interception Spring 1951 overseas nuclear tests in the Pacific High Frequency IBDA Indirect Bomb Damage Assessment Identification Friend or Foe Fall 1952 overseas nuclear tests in the Pacific Joint Task Force kt LABB-6 arwc/Ho Kilotons (Los Alamos bomb bay sampling device for B-36) A device for cloud sampling by which particles of the cloud are taken through a filter so that they adhere to a type of paper and let the gasses escape /23