Guidance

One-day Small Workboat Stability Course Syllabus

Published 6 May 2014

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This publication is available at https://www.gov.uk/government/publications/workboat-written-examination-syllabuses/one-day-small-workboat-stability-course-syllabus

1. Syllabus

  1. General terms in use.
  2. General Principles of Transverse Stability: 1.Location of CoG, K, M, CoB;
    1. Rolling and shift of CoB;
    2. Theory of Moments, Righting levers, List & heel; and
    3. Equilibriums.
  3. Adding, removing and shifting weights:
    1. Simple calculation of transverse stability and effects on draft;
    2. General understanding of change of trim;
    3. Trimming moments;
    4. Longitudinal Metacentre & LCF; and
    5. Importance of monitoring of any changes, regular checks.
  4. The Stability Booklet.
  5. Stiff and tender vessels.
  6. Use of cranes and shift of CoG.
  7. Free Surface Effect:
    1. Tanks;
    2. Consumption of fuel and water; and
    3. Water on deck.
  8. Critical KG calculations (Transverse Stability).
  9. Inclining Test.
  10. Deck edge Immersion.
  11. Catamaran stability.
  12. Risks associated with Tug and Tow.
  13. Risks associated with deck cargoes.
  14. Wind & Ice accretion Effects.

2. Assessment

The above one-day course includes a short 45-minute written exam which tests the knowledge and understanding of the students.

Pass mark: - Minimum 60 %

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