Page 9: of Maritime Reporter Magazine (January 15, 1981)

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Why compromise economic ship design because of concerns for propeller-induced vibrations? An advanced solution from the world's most experienced manufacturer of highly skewed propeller blades—the techniques used and proven in producing quiet running naval propellers have now been applied to commercial ships. Find out why this technology is uniquely suited to con- trollable pitch propellers and can contribute to increased fuel economy simplified control and improved maneuverability for your ship. Write or call Gary W. Dayton for further information. w /T i

BIRD-JOHNSON

COMPANY Division 110 Norfolk Street, Walpole, MA 02081, (617) 668-9610 r 1981