Project Mohole Scientific and Technical Progress for the Period Ending October 15, 1964: Summary and Science Section

摘要

Three design current profiles were developed separately and made into a composite graph. The platform preliminary design was reviewed and the contract plans and specifications were developed. Arrangement of most of the spaces in the upper and lower hulls is discussed. The interior arrangement of the columns remains to be worked out in detail. Plans showed the deck houses, pilot house, and upper hull to have scantlings considerably heavier than those normally found on offshore drilling rigs. Input data were developed for the three-dimensional computer program by which the platform stress could be determined. The crew's quarters and laboratory area arrangements are substantially complete. The design of the positioning units was considered to require additional development, particularly in the mechanisms for latching, sealing, and in the technique of handling. Purchase specifications for the main propulsion system package are being prepared. The propulsion motors will be two double-armature type, each capable of supplying 7,500 hp at full load. A study was made of platform crane requirements. The major function of the material handling cranes will be to transfer supplies, equipment, and personnel between the supply ship and the drilling platform. In response to the shipyard facilities survey, replies were received from 22 shipyards; eight requested to be omitted from consideration, five furnished complete information.