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NavSource Online: Service Ship Photo Archive


International Radio Call Sign:
Alpha - Alpha - Mike - Delta
Sea Based X-Band Radar Platform:
  • SBX-1 consists of radar mounted on CS-50 twin-hulled semi-submersible drilling rig
  • Platform converted in 2002 at AmFELS, Brownsville, TX.
  • Radar mounted at the Kiewit yard in Ingleside, TX.
  • Radar range: 1,242 miles
  • First deployed in 2006
  • Homebased at Adak, Alaska although she has never put into port at Adak
  • SBX-1 is part of the Ground-Based Midcourse Defense (GMD) system being deployed by the Missile Defense Agency (MDA)
  • The platform is designed to roam the Oceans under her own power on alert to detect incoming ballistic missiles
    Displacement 50,000 long tons (when ballasted)
    Length 389'
    Beam 238'
    Draft 33' (transit)
    CIVMAR 33
    Sponsors and Civil Service 54
    Speed unknown
    Range unknown
    Power Plant
    six 12-cylinder Caterpillar diesels 3.6 megawatt generators
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    Size Image Description Source
    SBX-1 92k SBX-1 being carried by the heavy lift vessel Blue Marlin, entering Pearl Harbor, HI., 9 January 2006. Blue Marlin transported SBX-1 from her builders yard at Corpus Christi, TX. to Pearl Harbor where the platform was placed in service.  
    SBX-1 208k The heavy lift vessel MV Blue Marlin sits moored in Pearl Harbor, Hawaii, with the Sea Based X-Band Radar SBX-1 aboard after completing a 15,000-mile journey from Corpus Christi, Texas. SBX-1 is a combination of the world's largest phased array X-band radar carried aboard a mobile, ocean-going semi-submersible oil platform. It will provide the nation with highly advanced ballistic missile detection and will be able to discriminate a hostile warhead from decoys and countermeasures. SBX-1 will undergo minor modifications, post-transit maintenance and routine inspections in Pearl Harbor before completing its voyage to its homeport of Adak, Alaska in the Aleutian Islands.
    US Navy photo # 060110-N-3019M-001 Pearl Harbor, Hawaii (Jan. 10, 2006) by MC2 Ryan C. McGinley
    Tommy Trampp
    SBX-1 72k SBX-1 at Pearl Harbor after being offloaded from the heavy lift vessel Blue Marlin in January 2006. US Department of Defense
    SBX-1 71k
    SBX-1 55k SBX-1 underway, date and location unknown. US Missile Defense Agency
    SBX-1 698k SBX-1 under tow at Seattle, WA. date unknown.  
    SBX-1 65k SBX-1 under tow 13 April 2016. SBX-1 was being moved closer to North Korea. The platforms powerful and mobile radar is part of the U.S. ballistic missile defense network. Itís designed to detect and track long-range ballistic missiles in midcourse.
    DOD photos.
    Tommy Trampp
    SBX-1 127k

    Dictionary of American Naval Fighting Ships (DANFS)
    Additional Resources and Web Sites of Interest
    TOTE Services - Platform Manager Contractor Photo Gallery
    Back To The Main Photo Index Back To The Service Force Ship Type Index Back To The Sea based X-band Radar Platform (SBX) Photo Index
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    This page is created and maintained by Gary P. Priolo
    All pages copyright NavSource Naval History
    Last Updated 9 December 2016