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Loft full sized decks and superstructures
Level
4
Credits
6
Purpose
People credited with this unit standard are able to: prepare for lofting full
sized decks and superstructures; produce full sized deck and superstructure
drawings; loft deck cambers; and develop deck detail.
Subfield
Boating Industries
Domain
Boatbuilding
Status
Registered
Status date
27 October 2006
Date version published
27 October 2006
Planned review date
31 December 2011
Entry information
Open.
Replacement information
This unit standard replaced unit standard 10839 and unit
standard 10840.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Boating Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0136
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Assessment against this unit standard must include a flat or curved panel
development, such as a raked cabin front, coaming, or other developed detail.
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2
The following apply to the performance of all elements of this unit standard:
a
All required equipment must be set up, started up, operated, and shut down in
accordance with documented organisational procedures.
b
All work practices must meet recognised codes of practice and documented
worksite health and safety procedures for personal, product, and worksite
health and safety, and must meet the obligations of current legislation, including
the Health and Safety in Employment Act 1992.
c
All work practices must meet documented worksite quality management
requirements. These include documentation of activities, events, and decisions.
3
This unit standard can be assessed against on job.
4
Candidates need to be able to work unsupervised.
5
Definitions
Job specifications – specifications that are determined by designers plans and
associated table of offsets.
Table of offsets – table of measurements that enable the shape of the vessel to be
drawn. Offsets are measured by the designer from the lines plan using the same
scale as the lines plan.
Datum lines – key reference lines used in boat lofting from which measurements are
taken.
Elements and performance criteria
Element 1
Prepare for lofting full sized decks and superstructures.
Performance criteria
1.1
Selection of materials, tools, and equipment enables job specifications to be
achieved.
1.2
Selection or production of battens enable fair lines to be established in
accordance with offsets.
Range
1.3
taper and dimensions of battens, selection of materials.
Interpretation of offsets establishes datum lines from plans, offsets or
specifications.
Range
datum lines – centre line, water lines, baselines; squareness;
dimensional and proportional accuracy; positioning of datum lines.
Element 2
Produce full sized deck and superstructure drawings.
Performance criteria
2.1
Lofted lines are consistent in line weight in accordance with job specifications.
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2.2
Faired lines cross grid lines in all three views at the correct corresponding
points.
2.3
Lofted lines correspond to supplied offsets as closely as possible while being
fair.
2.4
Incorrect offsets are identified and corrected in accordance with job
specifications.
Element 3
Loft deck cambers.
Performance criteria
3.1
A parabola method of constructing deck cambers is drawn using overall width
and crown height offsets.
3.2
An arc method of constructing deck cambers is drawn using overall width and
crown height offsets.
Element 4
Develop deck detail.
Range
panel, section or deck intersection, bevels, thickness deductions.
Performance criteria
4.1
A deck detail that is not square to the main deck datums is developed.
4.2
Development grid is constructed correctly in accordance with the reference
views.
Range
half breadth and profile.
4.3
Offsets are lifted correctly from reference views and detail is developed
correctly.
4.4
Bevels are correctly lifted from developed lofting detail.
4.5
Planking and/or core thickness deductions are demonstrated correctly.
Please note
Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
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Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Boating Industry Training Organisation info@bia.org.nz if you wish to
suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016