ABS Publishes Its First Guide For Certification Of Thrusters

American Bureau of Shipping (ABS) has published the first edition of its "Guide for Certification of Thrusters." The Guide provides for the certification of various thruster systems such as main propulsion thrusters, propulsion assist thrusters, athwartship thrusters, and dynamic positioning thrusters.

Compliance with the provisions of this Guide is required for main propulsion thrusters as a condition of classification, but is optional for the other thrusters.

Requirements in the Guide cover equipment and system design, and apply to thrusters driven by diesel, steam, or gas turbine engines, and electric or hydraulic motors. The Guide requirements cover the tunnel, pod-type and omni-directional type thrusters.

The 30-page Guide contains the following sections on thrusters with various subjects covered on each: conditions of classification; machinery design; prime movers; plans and particulars; propellers; reduction gears; shafts; systems; dynamic positioning machinery; and surveys. A special section, Appendix A contains Guidelines for Type Testing of Control Components. This section covers vibration and functional testing.

Cost of the "Guide for Certification of Thrusters" is $6 in the U.S.

and $7 elsewhere. Mail orders to: American Bureau of Shipping, Book Order Section, 65 Broadway, New York, N.Y. 10006, or contact local ABS offices.

Maritime Reporter Magazine, page 102, Nov 1984

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