_~ - 4 I 19 and Joint Task Force SEVEN to determine communications requirements and procedures. From these conferences and from comments received on the Preliminary Plan, the final Communications Plan for HARDTACK was written, being published on 18 June 1957.7 The final plan set an "operational ready" date of 1 January 1958 for all communications facilities. The plan stated that most of the communication and electronics equip~ ment required for Task Group 7.4 facilities was returned to the Zone of Interior at the completion of REDWING and was being processed through Sacramento Air Materiel Depot for overhaul, The equipment was to enter storage at Maywood Air Force Station under a special project designated EEE ote re-assembly according to scheme numbers at Maywood, the equipment was to be shipped to Enivetok for installation, According to the plan, the Task Group 7.4 commnication—electronics mission was tripartite: (1) to provide communication facilities and navigation aids for safe and efficient air operation in the Eniwetok Proving Ground; (2) to provide communication facilities for the collection and dissemination of weather and radiological data in support of Operation HARDTACK; and (3) to provide means of handling administrative and operational messages to and from points outside the proving ground. “Major differences between the HARDTACK plan and the plan used for REDWING were as followss 1. TACAN would replace TVOR as a navigational eid, A Task Group 7.4 request early in 1957 for a permanent

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