Modification History
Release 1
This is the first release of this unit.
This unit replaces and is equivalent to TDMMA1707A Determine the stability and trim of the vessel.
Unit Descriptor
This unit involves the skills and knowledge required to determine the stability and trim of a vessel to ensure that stability conditions of vessel comply with intact stability criteria under all conditions of loading.
Application of the Unit
This unit has application for a Watchkeeper Deck and Master < 500 GT.
Licensing/Regulatory Information
Not applicable.
Pre-Requisites
Not applicable.
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the required performance needed to demonstrate achievement of the element. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 |
Calculate stability |
1.1 |
Vessel stability data book is accessed and checked for endorsement |
1.2 |
Data is interpreted to determine vessel safety parameters |
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1.3 |
Stability is accurately calculated using data extracted from vessel stability data book |
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1.4 |
Stability calculations are checked to ensure they correlate with data set out in vessel stability book |
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1.5 |
Spurious or incorrect information is recognised and recalculated |
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1.6 |
Trim, draughts and list are adjusted as required |
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1.7 |
Stability calculations are conducted at a time, frequency and scope appropriate to voyage |
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2 |
Manage weight distribution |
2.1 |
Stability calculations are used to plan weight distribution to ensure assigned load line conditions are not exceeded |
2.2 |
Weight distribution is controlled to maintain vessel within acceptable stability and stress limits for loading operation and at all stages of voyage |
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2.3 |
Appropriate action is taken when weight distribution is compromising vessel safety |
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3 |
Maintain records of stability management |
3.1 |
Data and information related to stability management is accurately recorded |
3.2 |
Data and information related to stability management is filed and stored according to organisational procedures |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit. |
Required Skills: |
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Required Knowledge: |
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Evidence Guide
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, the required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package. |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements, Performance Criteria, Required Skills, Required Knowledge and include:
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Context of and specific resources for assessment |
Performance is demonstrated consistently over time and in a suitable range of contexts. Resources for assessment include access to:
In both real and simulated environments, access is required to:
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Method of assessment |
Practical assessment must occur in an:
A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate to this unit:
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Guidance information for assessment |
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended. In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge. Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate. |
Range Statement
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. |
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Stability calculations must include: |
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Appropriate action may include: |
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Data and information related to stability management may include: |
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Unit Sector(s)
Not applicable.
Competency Field
Handling Cargo and Vessel Stability