Compass adjuster training syllabus.
Merchant Navy Training Board, National Occupational Standards, Maritime Skills
Overview of MNTB NOS MSA 45 certification course.
This course covers the competence to plan for and establish system variances and their causes in magnetic compass, electronic compass and gyro compass navigation
systems in compliance with safety rules, regulations and organisational requirements. The effect on associated machinery and interfaced systems and any further problems to be investigated and identified. Logical fault-finding techniques are applied to identify
and isolate deviations, the causes are determined and equipment is adjusted as and where necessary. A full description of the variance, its symptoms and causes are accurately recorded for future use.
applies to individuals at the management level with responsibility for navigation systems on vessels of any type and of any registered power.
Pre-requisite; Students CV of experience and/or qualifications to be submitted at the time of booking this
Part A (1).
1. Properties of magnets. Meanings of terms.
2. Terrestrial magnetism – variation, dip, total force, horizontal force, vertical force, local attraction; effects on deviation.
3. Ships magnetism; effects of permanent and induced magnetism. Sub-permanent magnetism.
4. Compass design; general principles.
5. Siting and alignment of compasses with due regard to proximity
of magnetic material, electrical devices and other disturbing influences.
Meaning of lambda (λ), mu (µ), and a ships multiplier. How to find and use these quantities.
Part A (2).
Methods of swinging ship.
Construction of a curve of deviations and its practical use in coefficients analysis.
Part A (3).
Asserting the true bearing of the sun or a star and thence the
compass error and deviation.
Recognition of the principle bright stars.
Checking accuracy of instruments used in connection with compasses.
1. Use of compass adjusting apparatus.
Different methods of taking bearings. Use of pelorus and azimuth ring.
3. Practical compass adjustment and compensation.
4. Assessment of safe distances of navigational and other equipment to the magnetic
5. Navigational responsibilities of the Master (and pilot) whilst ship is being swung.
© SouthCoasting Navigators.
To meet the required standard at time of external assessment, the
following will have been achieved: -
You must be able to:
P1 plan for and establish variances in accordance with established safety rules and regulations.
apply logical fault-finding techniques and sequence of diagnostic procedures in accordance with recommended practices, procedures, safety rules and regulations.
P3 identify correctly and accurately the extent, nature
and cause of the variance and its effect on associated interfaced systems.
P4 propose action to be taken to correct the cause of the variation in accordance with recommended operating specifications and limitations.
P5 isolate, dismantle and re-assemble equipment as required.
P6 use specialist tools and equipment correctly in compliance with technical and manufacturer's instructions.
P7 minimise downtime and disruption to overall operations.
P8 investigate any further problems arising.
P9 record accurately the full
description of the history of the operation for future reference.
Knowledge and understanding
You need to know and understand:
K1 the operating principles and normal operating conditions for vessel compass navigation systems.
K2 analysis and evaluation methods, processes and techniques.
K3 fault finding techniques and routines.
K4 the cause and effects of
faults or failures in vessel navigation systems.
K5 the corrective action required to restore normal operating conditions.
K6 the effects that the function of the equipment
or system has on interfaced equipment and systems.
K7 operational and maintenance plans and schedules.
K8 the use of effective forms of communication.
statutory and organisational reporting requirements.
K10 the importance and use of records for commercial and legislative purposes.
K11 how to evaluate and apply Statutory Regulations and guidelines, organisational
instructions and guidance and vessel contingency plans.
| || || |