bilities. For example, the 508’s functioned most Satisfactorily on the boat net. These sets, however, did not prove to be satisfactory in meeting the peculiar communications require ments presented by this Task Group. The commercial frequency-modulated type did give satisfactory service between instrumentstations, on board ship, and at Headquarters, TG 132.1. Since for other purposes standard power is available throughout the test area, it is recomme nded that commercial frequency-modulated types of radios be procured and that one of the AEC con- tractors (EG&G or H&N)be assigned the responsibility for installation and servicing as re- quired. 3.19.4 J-4 Section, Logistics The system of requisitioning, procuring, shipping, and putting into service in the Forward Area vehicles for the Scientific Task Group has caused problems during the last two overseas operations. Considerable difficulty has been experienced in obtaining the vehicles necessary by the dates that have been requested for delivery in the Forward Area. It should be noted that in Operation Ivy the method of shipping the vehicles to the Forward Area, by consignment to TG 132.2, resulted in TG 132.1 not receiving vehicles directly and not getting, at least at the beginning of the operation, the vehicles actually shipped for its use. The vehicle requirements forwarded by the Task Group to the Task Force should be agreed on early, and it is recommendedthat the Task Force place its orders through standard ‘DOD channels. In addition, it is recommended that all vehicles be inspected, before being shipped overseas, by a representative of the J-4 Section, TG 132.1, and that they then be shipped directly to this Task Group. 3.19.5 Documentary Photography Operation Ivy was the first in the history of tests in the Forward Area in which the Documentary Photography Unit (TU 9) was assigned directly under the Scientific Task Group. It is the conclusion of all concerned that the documentary photographic mission for Operation Ivy was accomplished with 2 minimum of the operational handicaps which have slowed production on previous tests. It was conclusively shown that this production efficiency was directly at- tributable to the organizational arrangement mentioned above. Specifically, the following advantages resulted from this organizational system: 1. Unnecessary channels of communication were eliminated since the Documentary Photog- raphy Unit was already a part of the Task Group with whose activities it was mainly concerned. . 2. Information as to schedules of events and any last-minute changes was readily avail- able inasmuch as TU 9 was present along with the other Task Units at reguiar staff meetings. 3. Important personal contacts were easily and quickly made. 4. Technical advice as to important script changes was readily available. It is strongly recommended that in all future tests the Documentary Photographic Unit be a part of the Scientific Task Group as in Operation Ivy. 3.19.6 Shot Island and Off-atoll Organization Experience has shown the need for closer coordination of all shot-island activities, espe- cially in-matters of operations and support functions. On future operations it is proposed that a billet be established for an island coordinator. This individual would report to the Chief of Staff and would have available to him representatives of appropriate staff sections and task units. At test sites remote from Eniwetok a site commander will represent CTG 132.1 and be responsible for all activities of the Scientific Task Group at that site. At other off-atoll sites, such as Kwajalein, a CTG 132.1 representative will be in residence and will coordinate all Task Group activities at that point. 53.