I 30 4 Assumption that certain facilities based on economical termination of useful life, would be elfminated gradually. 5 Inclusion in the long range program of certain itens deleted from the Fiscal Year 1958 progran. The permanent establishment of the 4950th Test Group (Nuclear) "has permitted the continued monitoring of this program." 35 The 4950th co~ ordinated closely with Joint Task Force SEVEN "to reorient the construc~ tion program from tine to time to adapt it to changing recuirements" and to obtain as much of the necessary construction as possible in the periods between tests. (Sea also, "Major Materiel Planning Activities," this history.) Portable Buildings. Closely related to the construction program = throughout REDWING and in the planning for HARDTACK was the matter of the use of portable buildings to alleviate the lack of sheltered working space. On 28 January 1957, the 4950th requested assistance of Air Materiel Command in obtaining information regarding the availability of prefabri-~- cated (portable) buildings for use at Eniwetok during HARDTACK,. Air Ma- teriel Command advised the 4950th that seven Complete Assembiy Shelters were on hand at Wilkins Air Force Depot awaiting disposition instructions from Headquarters United States Air Force. Also available were other por— table buildings, 20 by 48 feet, without generators, air conditioners, heat— ing sYetems, flooring, or electrical wiring. The comparative merits and suitability of both the s'-elters and portsble buildings then were considered for use for NJARD@aCK, a AFWL/ HQ Us . -l7 ; A decision was

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