FOREWORD The following report of Operation REDWING by Holmes & Narver, Inc. under contract to the United States Atomic Energy Commission, sum- marizes the planning, engineering, design, construction, maintenance, and management of the Pacific Proving Ground facilities for the period of 1 July 1954 through 10 August 1956. It has been prepared in accordance with the requirements of Contract AT-(29-2)-20 as set forth in Article III, General Requirements, Paragraph 1, Page 8. Purely a documentary report, it has been abbreviated to features relevant to the activities of Holmes & Narver as the Architect-Engineer-Construction-Management Contractor. It records performance, and contains conclusions and recommendations based on the assumption that the Pacific Proving Ground will be used for future tests. It is designed to serve as a reference for the U. S. Atomic Energy Commission or other participants in projects of a similar nature. REDWINGwas considerably more complex and of greater magnitude than any previous Operation held at the Pacific Proving Ground. Complexity was magnified by a few unusual design and construction requirements, a compressed schedule, and an expanded sphere of operations. Much of the success of REDWING must be attributed to the effective liaison maintained with the AEC and the participating and supporting agencies. That the pre-operational phases proceeded without serious delay and generally on schedule, and that the test operations were successfully concluded, is clearly a tribute to the outstanding cooperation of the diverse components of Joint Task Force Seven. Page iii