99 reconversion to Strategic Air Command specifications could be accomplished within a 24-hour period. While these Strategic Air Command aircraftwere undergoing sampler modification, all B-57D's by Air Force directive were grounded for a check of the honeycomb wing structure. A status report from the Martin company in October indicated that those B-57D's planned for HARDTACK use appeared to have no wing structure deficiencies which would prevent timely comple tion of tha sampler modification, but that in case other related deficien~ cies were discovered, the required equipment was on hand at Martin to effect the necessary modification without delaying the sampler capability change. No related deficiencies were fomd to deley the process. Instrumentation of the B-52 was largely a routine matter for Wright Air Development Center. reported. No difficulties in this modification project were Instrumentation of the B-36 aircraft was a responsibility of the Air Farce Cambridge Research Center. No delays or difficulties were encountered. Adroraft Maintenance. By the end of October 1957, approximately 50 per cent of the requirements lists for work space and maintenance facili- ties had been received by the Materiel Directorate from Task Group 7.4 elements. Final allocation of space and facilities were made prior to 1 January 1958, after all requirements were formulated. uch attention was given to the close proximity of maintenance facilities and the parking of = AFWL/ HQ

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