REQUIRED KNOWLEDGE

This describes the knowledge required for this unit

Relevant maritime regulations

Relevant OHampS legislation and policies

Basic stability theory including

a

principles of stability

b

terms and definitions

c

relationship between weight and buoyancy in relation to floating bodies

d

reserve buoyancy

e

equilibrium

f

impact of design and hull shape on stability

Principal design features of small vessels related to stability and watertight integrity including

a

principal parts of a small vessel and their function in relation to its stability and its structural and watertight integrity

b

advantages and disadvantages of various materials used in the construction of small vessels

c

openings in the hull and on the main deck of a small vessel and the safe working practices that must be followed to maintain watertight integrity

d

maintenance and survey requirements necessary to maintain the watertight integrity of a small vessel

The principal factors which affect the operational stability of a small vessel and the related measures that can be taken to maintain stability including

a

adding and removing weights

b

water on deck

c

slack tanks

d

roll period

e

stiff and tender vessel

f

additions and alterations to vessel

Information contained in the basic stability data book supplied to each small vessel and how this information is used to maintain the vessel in a stable condition during operations

Effects of density of sea water on the draught and freeboard of a small vessel

Factors which affect the rolling period of a small vessel

Relationship between light displacement loaded displacement and deadweight tonnage

Differences between transverse and longitudinal stability and the causes of list and trim

Conditions of stable neutral and unstable equilibrium and the effects of disturbing a vessel from the upright

Steps involved in bringing an unstable vessel to a stable condition

Actions to be taken to contain flooding in the event of underwater damage to the hull

Effects on the stability of a small vessel that has been bilged

Problems that may occur concerning the stability of small vessels up to metres engaged on coastal voyages and appropriate precautionaryremedial action and solutions

REQUIRED SKILLS

This describes the basic skills required for this unit

Use basic verbal communication skills required when taking action to maintain the stability of a small vessel using basic stability information

Read interpret and apply simple instructions for maintaining the stability of a small vessel using basic stability information

Read and interpret vessel specifications drawings and operational manuals

Interpret measurements and observations required when maintaining the stability of a small vessel using basic stability information

Complete any required records related to the maintenance of the stability of a vessel

Work safely and collaboratively with others when taking action to maintain the stability of a small vessel using basic stability information

Select and use relevant equipment as per instructions

Recognise routine problems when taking action to maintain the stability of a small vessel using basic stability information and take appropriate action

Adapt to differences in vessel types

Follow required work schedule as per company requirements

The Range Statement relates to the unit of competency as a whole It allows for different work environments and situations that may affect performance

VARIABLE

SCOPE

GENERAL CONTEXT

a

Work must be carried out

in compliance with the relevant State and Territory maritime regulations

b

Work is performed

within defined operational procedures with responsibility for own outputs and responsibility for others in maintaining the stability of a small vessel

c

Work involves

the application of basic principles of vessel stability when operating a small vessel within a range of applicable operational and emergency contexts

WORKSITE ENVIRONMENT

a

Vessel may include

any small commercial vessel up to metres in length engaged on a coastal voyage

b

Measures to control the stability of the vessel may be carried out

by day or night

in both normal and emergency situations

under any possible conditions of weather and loading

while underway

during berthing and unberthing operations

while anchoring or mooring

c

Factors that may have an adverse effect on small vessel stability which require special precautions and stability management include

effects of suspended weights when using cargo or fishing gear to load and discharge heavy weights

dangers on board a fishing vessel when clearing a net which is caught fast on an underwater obstruction

free surface effects

water on the deck

poor security of cargo stowage

TDMMAB MAINTAIN THE STABILITY OF A VESSEL USING BASIC STABILITY INFORMATION

TDMMA1107B MAINTAIN THE STABILITY OF A VESSEL USING BASIC STABILITY INFORMATION

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria the Range Statement and the Assessment Guidelines for this Training Package

The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, , the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

Assessment must confirm appropriate knowledge and skills to

a

Manage the stability of a small vessel

safely in both normal and emergency situations

in normal and adverse weather conditions

when loading and unloading

when underway

in berthing and unberthing operations

when anchoring or mooring

b

Communicate effectively with others concerning operations to maintain the stability of the vessel

Evidence required for demonstration of consistent performance

a

Performance is demonstrated consistently over a period of time and in a suitable range of contexts

b

Applies underpinning knowledge and skills when

managing the stability and stresses of a small vessel

identifying and stability problems and determining appropriate courses of action

identifying and implementing improvements to procedures for the management of the stability of a vessel

applying safety precautions relevant to the maintenance of the stability of a small vessel

assessing the stability of a vessel in both normal and emergency situations using basic stability data

c

Shows evidence of application of relevant workplace procedures including

relevant maritime regulations

OHampS regulations and hazard prevention policies and procedures

job procedures and work instructions

continued

TDMMAB MAINTAIN THE STABILITY OF A VESSEL USING BASIC STABILITY INFORMATION

TDMMA1107B MAINTAIN THE STABILITY OF A VESSEL USING BASIC STABILITY INFORMATION

Evidence required for demonstration of consistent performance

continued

relevant vessel manufacturers guidelines relating to the stability of the small vessel

procedures to protect the integrity and security of the vessels hull

environmental protection procedures when pumping ballast and bilge water

d

Action is taken promptly to report andor rectify factors adversely affecting the stability of the small vessel

e

Work is completed systematically with required attention to detail

f

Recognises and adapts appropriately to cultural differences in the workplace including modes of behaviour and interactions among crew and others

Context of assessment

a

Assessment of competency must comply with the assessment requirements of the relevant maritime regulations

b

Assessment of this unit must be undertaken within relevant marine authority approved and audited arrangements by a registered training organisation

As a minimum assessment of knowledge must be conducted through appropriate writtenoral examinations and

Appropriate practical assessment must occur

i

at the registered training organisation andor

ii

on an appropriate working or training vessel

Specific resources required for assessment

Access is required to opportunities to

a

Access is required to opportunities to

b

participate in a range of exercises case studies and other simulated practical and knowledge assessments that demonstrate the skills and knowledge to maintain stability of a small vessel in a range of operational situations andor

i

maintain the stability of a small vessel in a range of operational situations either

ii

using an appropriate small vessel simulator over an appropriate range of simulated stability situations

iii

in appropriate practical situations during seatime on an operational commercial or training small vessel

VARIABLE

c

Factors that may have an adverse effect on small vessel stability which require special precautions and stability management include:

(continued)

6

movement of heavy items or stores and equipment on board vessel

7

8

9

d

Means of managing the stability of a small vessel include:

1

2

3

4

5

6

7

8

e

Documentation and recordsmay include:

1

2

3

4

5

6

7

f

Applicable legislation, regulations and codes may include:

1

2