WUELe Seal TRAC “ 5)Coll consequently well manageable. On March 13, however, immediately before leaving for the Pacific, he teletyped indicating that his recalculations indicated danger of eye damage to ranges as follows: a, On the higher shot, to 560 miles for a person at ground surface; and 900 miles for aircraft at 20,000 ft. b. On the lower shot, to a distance of 400 miles for a person on the surface. The basis for Dr. Ogle's calculations are contained in a report dated March 1H, 1958, and now in the hands of DMA. has been reviewed by Drs. It Graves, Bradbury, Dunning and Shelton, all of whom believe the order of magnitude is correct though the ranges are now estimated by all as somewhat less (by a factor of perhaps 25%) than in Ogle's initial calculations, 5. A series of teletypes have been exchanged between DMA and General Luedecke, course of action. ‘An BY and'a " attempting to establish a recommended The more important are attached as Appendices Phe answer to'C} as of the time of preparation of this memorandum, has not yet been received. It is expected prior to the Commission meeting on this subject at 11:00 a.m, on April 1. 6, In brief, these indicate: a4, General Luedecke believes that he can establish, through use of Trust Territory officials and Task Force members, an organization which would have a fair chance of preventing eye damage to the natives. He could establish control over air flights to the same end. He could sweep the area to insure that no shipping was within the danger range at the time of the shot. He cannot, however, avsclutely guarantee that these or ther measures will prevent inadvertent eye damage to some individual or individuals, b. Both TEAK and ORANGE could be fired in the daylight with the yields now planned. This would reduce the estimated range of hazard to 320 miles for personnel at the surface for TEAK and 180 miles for personnel at the ~ 3 - POD Geert Roee EN Tb ih eit 4 i 5 me v .