[SPACE HARD SUITS]. Anaylsis of the RX-2A Hardsuit: Performance Analysis. NASA/MSC, 8 February 1966. Extensive details on operations of the RX-2A with a test plan section -- Engineering Change Proposal for the RX-3 Pressure Suit Development Program. Litton Systems, 10 September 1965. A review of the RX-3 hard-suit program and suggested modifications -- A NASA transmittal letter and requirements to Litton Systems, Inc. for a request for Proposal No. BG721-19-6-137P, RX-4 -- and 15 internal NASA memos and associated industry correspondence involving Litton, General Electric, Hamilton Standard, and others on RX or other hard-suit technology. (18)