2. Dispatch orders to the TG 7.3 ships requiring boat movement at designated times. 3. Request security personnel and material for zoning danger areas and maintaining them over extended periods of time. 4. Install a system of communications with count-down interconnecting firing bunkers, control tower, MP roving stations, instrumented MIDOT sta- tions, MSQ stations and others into a centralized control agency of JTF 7, with the code name "Alaska, “all of which was not required for the operation at Bikini. Detailed control of the arming and firing was exercised by JTF 7, Alaska. The J~3 Section, TG 7.1, published weekly schedules which were for- warded to JTF 7 for approval and necessary support action. consisted of: (1) NOTAM safety notices, (2) This action air traffic control alerts, (3) Navy boat movement from the anchorage, (4) MP stations being manned for local safety precautions, and (5) siren alert signais to the local population that a firing was about to be conducted. 3.7 EVACUATION, RECOVERY, AND RE-ENTRY PLANNING Planning for this aspect of the operation took place in three phases. 1. Early in 1957 the basic concepts and general plans of evacuation were determined. Based upon this, requirements for ships, boats, and air- craft were determined and submitted to JTF 7. 2. Later, as projects began to submit their monthly status reports, more detailed information was compiled in the J-3 Section of the Task Group. This was published early in February 1958 in an abbreviated form in the two. atoll event booklets as appendixes to the Task Group Operation Plan 1-58. 3. Final detailed planning took place at the Proving Ground, when each task unit, one to two weeks before each shot, submitted its project's evacua- tion and re-entry cards to the J-3 Section on Bikini and Eniwetok Atolls. With these data a detailed check list, arranged chronologically, was prepared for each shot and given wide distribution to other Task Groups so that ade- quate support could be scheduled. Although evacuation and re-entry problems for Hardtack were similar to those encountered during Redwing, rocket sampling of the radioactive clouds added a new recovery problem. Nose cones were designed to pass through the clouds and parachute to earth. Their points of impact varied with their trajectories, so that sometimes they landed in the lagoons, but more often several miles at sea. Two nose cone recovery testa were conducted: one at Salton Sea and the other off the Southern California coast. The evacuation and re-entry operation at Johnston Island had none of the complexities that were present at Bikini Atoll, since it involved a simple direct evacuation and re-entry from a single camp to the ships at anchorage. A most important problem arose, however, in determining the loading technique to be used in rough waters at the ship's anchorage. Prior to the Teak event various methods such as loading platforms and loading nets were tried, all of which proved unsatisfactory. loading cage. Finally, it was decided to build a This railed platform was approximately 10 by 10 ft with a protective roof. It was capable of lifting 40 to 50 people at one time, but was limited to 35 for safety reasons. A single lifting lug was welded at the 93