80 4 t resporsibili¢€y for all Joint Task Force SEVEN air and surface mits in the Control Area during HARDTACK, An important portion of tha dooument defined the Lindts of the Eni~wetok Air Control Area: the ares of two circles of 100 nautical mile radii drawn from Eniwetok and Bikini Atolls and joined by straight line tangents (as shown in the current Radio Facilities Chart). Joint Task Force SEVEN units, however, "will particimte as may be appropriate in SAR operations outside of this area." By the beginning of the operational phase of HARDIACK, the plans for search and rescue were firm and no outstanding problems were encounteréd. Flicht Safety. As during Operation REDWING, many factora were pre- sent for HARDTACK in the proving ground to make flight safety a momentous and persistent problem. The limited size of the sirfield at Fnivetok, for example, was an especially important aspect of flight safety for it would expose HARDTACK aircraft to many operational hazards that could not be elirinated. Many structures required for flying activities vere of necessity sited in violation of established Air Force airfield clearance regulations. This was true of the lecation of the Control Tower, the Ground Controlled Appreach unit, communications antenna poles, the hangar, parkingaprons, and many miscellaneous structures. Furthermore, the pros— pect of a high concentration of aircraft in critical positions on mission days was to require precise indoctrination and close coordination between AFWL/ HQ

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