capability. The Navy was charged with the responsibility of selecting a contractor  for developing a system that was capable of accepting and launching the Army missile. This was later designated the ship inertial navigation system  (SINS). To promote a cooperative atmosphere at the working level, Navy and Army liaison offices were established and manned with technical personnel  at ABMA and the Navy development site, respectively 30 . Returning to the tentative development plan, the brevity between decision and submission prevented any detailed presentation on MC1s or  specifications, for they were not then available. Despite the preliminary nature, there were some directed requirements and some known design characteristics to fulfill the goals. In this respect, a maximum range of 1,500 miles was to be attained, and calculations had been made on several versions that could reach this distance. The proposed types were from 50 to 65 feet long, and weighed between 85,000 and 115,000 pounds. Both figures were  considerably shorter and lighter than the 1955 proposal for an Army land-based IRBM. ABMA intended to start development on a vehicle involving the  greater weight and length and, as engineering and flight experience permitted, move toward the smaller version. The plan went on to discuss the  environment the missile would experience from lift-off to impact, and the reactions on the part of the missile to meet the demands of this situation. Over-all, the 1,500-mile missile development program would "be dependent on work that had been accomplished in behalf of the REDSTONE, and  mention was made of the continued importance of funding this program. This remark was prompted by the fact that JUPITER component development activities would ______________________________

30. Terms of Ref for Army-Navy Dev of IRBM Dual Land-Based and Sea- Based Wpn Sys's, 2 Dec 55, in ABMA Ref Book, sub: Important Props, Requests, and Directives, Tab E, Hist Off files.