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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Determine non-normal take-off performance 
SAQA US ID UNIT STANDARD TITLE
263016  Determine non-normal take-off performance 
ORIGINATOR
SGB Aerospace Operations 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 10 - Physical, Mathematical, Computer and Life Sciences Physical Sciences 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 6  Level TBA: Pre-2009 was L6  45 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
The person credited with this unit standard is able to identify runway conditions and assess their affects on the takeoff performance of the aircraft and thus be able to calculate the take off weight and speeds to suit the prevailing aircraft backing configuration. Learners will be able to identify the non-standard aircraft configuration or deviation in order to calculate take off performance to ensure a safe operation.

The qualifying learner is capable of:
  • Adjusting take off performance according to runway conditions.
  • Calculating aircraft field length performance for non-standard aircraft braking configuration.
  • Calculating aircraft performance for non-standard aircraft configuration deviations. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    Learners accessing this qualification will be assumed competent in:
  • Communication at NQF Level 5 or equivalent.
  • Mathematical Literacy at NQF Level 5 or equivalent. 

  • UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Adjust take off performance according to runway conditions. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The runway conditions are identified in order to apply the appropriate corrections to take off performance to ensure a safe operation. 
    ASSESSMENT CRITERION RANGE 
    Runway conditions include wet, slippery, 3mm standing water/slush, 6mm standing water/slush, 13mm standing water/slush and ice covered.
     

    ASSESSMENT CRITERION 2 
    The effects of the runway conditions on take off performance are evaluated and quantified by reading depth, type and extent of the runway conditions. 
    ASSESSMENT CRITERION RANGE 
    The effect on take off performance of runway conditions include identifying degree of rate of acceleration, braking action with or without the use of thrust reverse, vmcg limit and thrust level.
     

    ASSESSMENT CRITERION 3 
    Take off weight and speeds are calculated to suit the prevailing runway conditions. 
    ASSESSMENT CRITERION RANGE 
    Take off weight and speed calculations include adjustments to ensure accelerate-go performance meets screen height requirements and V1 is not less than vmcg.
     

    SPECIFIC OUTCOME 2 
    Calculate aircraft field length performance for non-standard aircraft braking configuration. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The braking deficiency is identified in order to apply the appropriate corrections to take off performance to ensure a safe operation. 
    ASSESSMENT CRITERION RANGE 
    Braking deficiencies include one or two brakes deactivated or anti-skid inoperative.
     

    ASSESSMENT CRITERION 2 
    The effects of braking deficiency on take off performance are evaluated and quantified by reading brake energy limits, increased stopping distances and decreased acceleration capability. 
    ASSESSMENT CRITERION RANGE 
    The effect on take off performance of braking deficiencies include identifying amount of loss of brake energy containment, the effect of extra stopping distance required and V1 as limited by vmcg and vmbe limits.
     

    ASSESSMENT CRITERION 3 
    Take off weight and speeds are calculated to suit the prevailing aircraft braking configuration. 
    ASSESSMENT CRITERION RANGE 
  • Take off weight calculations include adjustments to ensure accelerate-go performance meets screen height requirements considering a V1 that ensures adequate stop margin.
  • Take off speed calculations includes a check for compliance with vmcg, vmu and vmca requirements.
     

  • SPECIFIC OUTCOME 3 
    Calculate aircraft performance for non-standard aircraft configuration deviations. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The non-standard aircraft configuration or deviation is identified in order to calculate appropriate take off performance to ensure a safe operation. 
    ASSESSMENT CRITERION RANGE 
    Non-standard aircraft configurations or deviations includes but is not limited to those contained in the Minimum Equipment List and Configuration Deviation List.
     

    ASSESSMENT CRITERION 2 
    The effects of configuration deviations on aircraft performance are analysed by assessing the effect on climb, obstacle clearance, field length and cruise performance. 
    ASSESSMENT CRITERION RANGE 
    The effect of configuration deviations include amount of drag incurred, loss of braking efficiency, containment of cruise speed, increase in fuel burn and effect of structural weight limits.
     

    ASSESSMENT CRITERION 3 
    Aircraft performance is calculated to suit the prevailing aircraft configuration deviations. 
    ASSESSMENT CRITERION RANGE 
    Aircraft performance calculations include adjustments to ensure aircraft performance meets legal requirements.
     

    ASSESSMENT CRITERION 4 
    Flight planning is done for the applicable aircraft configuration to meet operational requirements. 
    ASSESSMENT CRITERION RANGE 
    Operational requirements include but are not limited to fuel burn calculations, step climb calculations, cruise speed, altitude restrictions and terrain clearance.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • An individual wishing to be assessed (including through RPL) against this unit standard may apply to an assessment agency, assessor or provider institution accredited by the relevant ETQA or an ETQA that has a Memorandum of Understanding in place with the relevant ETQA.
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA or an ETQA that has a Memorandum of Understanding in place with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard or assessing this unit standard must be accredited as a provider with the relevant ETQA or an ETQA that has a Memorandum of Understanding in place with the relevant ETQA.
  • Moderation of assessment will be conducted by the relevant ETQA at its discretion. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Runway conditions which have an effect on takeoff performance.
  • How to calculate takeoff weight and speeds.
  • Various braking deficiencies.
  • Non-standard aircraft configurations and deviations. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems pertaining to the determination of non-normal take-off performance. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information pertaining to take-off performance, aircraft field length performance and for non-standard aircraft configurations deviations. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively by accurately reading brake energy limits, increased stopping distances and decreased acceleration capability. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology to assist in the determination of non-normal take-off performance. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems whereby accuracy of data is important to the determination of non-normal take-off performance. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Glossary of terms:
  • V1 is engine failure decision speed.
  • V2 is minimum safe climb speed.
  • Vr is minimum rotation speed.
  • Vmu is minimum un-stick speed.
  • Vmca is minimum control speed air (one or two engines failed).
  • Vs is aircraft stall speed.
  • Vmcg is minimum control speed ground.
  • Vmbe is maximum speed brake energy. 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  66109   National Diploma: Aircraft Performance Engineering  Level 6  NQF Level 06  Passed the End Date -
    Status was "Reregistered" 
    2016-12-31  TETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.