Command Training

SEAMANSHIP SEMINAR

12/14/98


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Table of Contents

SEAMANSHIP SEMINAR

SEAMANSHIP

THE ART OF SHIPHANDLING

THERE MAY BE MORE THAN A DOZEN FORCES ACTING ABOUT THE VESSEL’S AXIS AT A GIVEN MOMENT, AND THE RESULTANT MAY NOT BE AS ANTICIPATED BUT DUE PARTIALLY TO A FORCE WHICH HAS ESCAPED DISCOVERY. THIS IS NOT ‘MYSTICISM’ AS MUCH AS LACK OF THE RESEARCH WHICH TAKES THE ART OF SHIPHANDLING INTO THE FINITE WORLD OF APPLIED SCIENCE.

MOMENTUM & INERTIA

PIVOT POINT

PIVOT POINT

SHIPHANDLING PRINCIPLES CONTROL Vs. FAITH

PPT Slide

SHIPHANDLING FORCES UNCONTROLLABLE

SHIPHANDLING FORCES CONTROLLABLE

PROPELLER FORCES STERN WALKS THE SAME DIRECTION PROPELLER TURNS

PIVOT POINT

SINGLE PROPELLER FIXED PITCH

TWIN / QUAD PROPELLERS FIXED PITCH

CONTROLLABLE PITCH PROPELLERS

OTHER PROPULSION SYSTEMS

RUDDER EFFECTIVENESS

BOW THRUSTERS / APUs

SHIPHANDLING FORCES SEMI-CONTROLLABLE

SHALLOW WATER EFFECTS SQUAT

SQUAT

BANK SUCTION/CUSHION

MEETING & OVERTAKING

Author: Hackney