aie JOHNSTON ATOLL F &S NO. 01028 USER PMR SCIENTIFIC TITLE Missile Flight Safety System (Akau Island) STRUCTURE. FACILITY NO. SCIENTIFIC STATION NO. See Text BoD None FOD FUNDING AGENCY ($000) JTF-8 PRE-GO MILCON Prior Cost ENGR PROC CONST TOTAL 68.7 689.8 758.5 68.7 689.8 758.5 FURN CRO 2-64 CRO 7-64 TOTAL COMPLETED DESCRIPTION Relocation of PMR facilities consisted of creating Akau Island and installing PMR range safety equipment. This island was created by dredge fill and includes a sheet pile wharf area and a small boat landing. PMR equipment on Johnston Island was removed and relocated on the new Akau Island. In addition to the relocation of equipment, several new vans were installed by PMR to augment this equipment. Major PMR facilities now include radar units and their support trailers, a helicopter pad, a 40,000 gallon fresh water storage tank, a 40 x 100-ft. spare parts and supply building (Building 1001 - see F&S No. 02047 for modifications) and a 40 x 150-ft. operations building (Build- ing 1000). A 150-ft. high boresight tower is located on the west side of the island. Above grade earthwork includes five elevated antenna mounts, anda berm around the southeast corner of the island. Electrical power with 100 percent backup is supplied from the permanent power plant on Johnston Island by means of a submaring cable loop. In addition, submarine cables are used to carry the signals and communications between Johnston [sland and Akau Island. (Completed in 1965.) The following items are available for range operations: Two AN/MPS-25 C-band radars Three AN/MPS-26 C-band radars Two AN/USQ-20 B computers One SDS 910 special purpose computer One AGAVE antenna Ten VHF telemetry receivers Plotting boards Tape recorders IRIG timing system 1-31 VOLI