Two permanent tanker moorings were installed in a coral lagoon at Diego Garcia utilizing a total of 18 propellant embedment anchors. Anchors were fired in water depths ranging from 14.4 m to 22.9 m and obtained penetrations in the coral seafloor varying from 7.6 m to 10.7 m. These anchors held securely in a coral seafloor that had proven unsuitable for conventional drag-burial anchors. The anchors were proof tested to holding capacities between 445,000 Nt and 667,500 Nt. With the capability of these anchors to sustain uplift forces, mooring legs were made shorter and lighter, facilitating installation. Overall, operational and logistic support requirements were less extensive than for other approaches to providing secure moorings in a coral seafloor at such a remote location. Development work is planned to provide propellant embedment anchors for a variety of Navy mooring requirements.

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  • Corporate Authors:

    Marine Technology Society

    5565 Sterrett Place, Suite 108
    Columbia, MD  United States  21044
  • Authors:
    • Erchul, R A
    • True, D G
  • Publication Date: 1975-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00138543
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 23 1976 12:00AM