Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MARA024 Mapping and Delivery Guide
Manage vessel stability

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MARA024 - Manage vessel stability
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge required to manage the dynamic factors affecting the stability of a vessel less than 80 metres.It includes calculating stability, controlling vessel stress and stability, and maintaining records of stability management.This unit applies to people working in the maritime industry in the capacity of: Master on commercial vessels less than 35 metres in length within the exclusive economic zone (EEZ)Master on vessels less than 80 metres in length in inshore watersChief Mate or Deck Watchkeeper on vessels less than 80 metres in length within the EEZChief Engineer on vessels with inboard engines less than 1500 kW within the EEZSecond Engineer on vessels with inboard engines less than 3000 kW within the EEZEngineer on vessels with outboard engines with unlimited propulsion power within the EEZassistant under the direct supervision of the Chief Engineerworker in the engine room of a vessel less than 80 metres in length with propulsion power less than 3000 kW.Licensing/Regulatory InformationLegislative and regulatory requirements are applicable to this unit. This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as a Master less than 35 metres Near Coastal, Mate less than 80 metres and Marine Engine Driver Grade 1 Near Coastal as defined in the National Standard for Commercial Vessels (NSCV) Part D.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

As a minimum, assessment must satisfy applicable regulatory requirements, which include requirements in the Standards for Registered Training Organisations current at the time of assessment.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Practical assessment must occur in a workplace, or realistic simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, safety management system (SMS), vessel stability books, workplace procedures and operational manuals

tools, equipment, machinery, materials and personal protective equipment (PPE) currently used in industry.
Prerequisites/co-requisites
Competency Field A - Handling Cargo and Vessel Stability
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Data is interpreted to determine safety parameters for vessel
       
Element: Stability is accurately calculated using data extracted from vessel stability data book
       
Element: Stability calculations are checked to ensure they correlate with data set out in vessel stability book
       
Element: Miscalculations or unsafe conditions are recognised and recalculated or checked
       
Element: Calculated stability data is recorded using appropriate units and correct number of significant figures
       
Element: Control vessel stress and stability
  • Information from vessel stability information is used to determine loading limits and displacement from draft
       
Element: Vessel weight distribution is managed to maintain stability condition within safe limits at all times and regulatory requirements are complied with under all conditions of loading
       
Element: Relevant stability information is correctly communicated to others, as required
       
Element: Stability conditions of vessel are managed in adverse weather conditions
       
Element: Emergencies that may jeopardise vessel stability are recognised and appropriate actions taken
       
Element: Maintain records of stability management
  • Data and information related to stability management is accurately recorded
       
Element: Data and information related to stability management is filed and stored according to organisational procedures
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

attending to appropriate level of detail in recordkeeping

carrying out basic calculations associated with maintaining vessel stability which must include:

dock water and freshwater allowance

draft

final height of the centre of gravity (CG) above the keel of a vessel

trim

final position of the longitudinal centre of gravity (LCG)

free surface effect and vertical distance between keel and CG adjusted for free surface effect (CGf)

metacentric height (GM) and GM adjusted for free surface effect (GMf)

righting moments

checking calculations to ensure correlation against stability book data

managing loading and weight distribution of vessel to ensure assigned load line conditions are not exceeded.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

bilging and permeability

centroids and CG

change of draught and trim (MCT)

conditions of stable, neutral and unstable equilibrium and effects of disturbing vessel from upright

construction features and stress characteristics for vessels

density and specific gravity

dock water and freshwater allowance

effects of free surface of liquids

emergencies, including:

adverse weather and water conditions

any other emergency identified by risk assessment that may affect stability

cargo shift

damaged hull

flooding of cargo spaces

factors that affect the rolling period of vessel

forces and moments

information contained in stability data books

loading and discharging weights

loading limits, including:

not exceeding allowable passenger carrying capacity and distribution

not exceeding cargo carrying capacity of the vessel

the effect of fuel, freshwater and ballast on cargo carrying capacity

maintenance of stability during firefighting operations

principal stresses that act on the structure of a vessel

principles of vessel stability

problems affecting vessel stability

procedures for carrying out basic calculations associated with vessel stability

relationship between light displacement, loaded displacement and deadweight tonnage

stability curves

stability of vessel in a range of conditions

stability terms and definitions

steps involved in bringing an unstable vessel to a stable condition

stress calculations

tonnes per centimetre (TPC) immersion

transverse and longitudinal dynamics

trim and stress tables

work health and safety (WHS)/occupational health and safety (OHS) requirements and work practices.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
 
 
 
 
 
Information from vessel stability information is used to determine loading limits and displacement from draft 
 
 
 
 
Data and information related to stability management is accurately recorded 
 

Forms

Assessment Cover Sheet

MARA024 - Manage vessel stability
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MARA024 - Manage vessel stability

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: