BTEC International Level 3 Unit 48 (Unit 48) — 60 Guided Learning Hours.
Assessment criteria
Reproduced verbatim from the Pearson specification — the same grid the assignment brief carries. A unit grade is the highest band where all criteria in that band (and every band below it) are met.
Pass
7 criteriaA.P1– You have successfully calculated the atmospheric changes due to varying altitudes and conditions, explaining the effects of these changes on aircraft flight.
A.P2– You have successfully explained the mechanical and fluid principles that enable flight.
A.P3– You have successfully explained the nature of the loading parameters imposed on the airframe during flight manoeuvres.
B.P4Conduct experiments safely to determine the lift and drag forces produced from steady state air at two different speeds flowing over two different aerofoil sections set at three angles of attack.
B.P5Explain, using theoretical calculations and experimental results, the lift and drag forces produced from steady state air at two different speeds flowing over two different aerofoil sections set at three angles of attack.
C.P6– You have successfully explained the nature and operation of aircraft primary controls and secondary controls, lift augmentation and drag inducing devices.
C.P7– You have successfully explained the nature of stability and how aircraft are stabilised about their axes of rotation. General comments You produced a well-structured and easy to follow piece of work. You have taken a logical approach to the learning aim to demonstrate a good knowledge and understanding of the content and the links between the topics. Learner Declaration - I certify that the evidence submitted for this assignment is my own. I have clearly referenced any sources and any artificial intelligence (AI) tools used in the work. I understand that false declaration is a form of malpractice. Learner signature Kevin Yanny Date 31/07/2025 Assessor declaration – I declare that the work submitted for assessment has been carried out without assistance other than that which is acceptable according to the rules of the specification. I certify that to the best of my knowledge the evidence submitted for this assignment is the learner’s own. The learner has clearly referenced any sources and any AI tools used in the work. I have not solely used AI to mark learner’s work. I understand that false declaration is a form of malpractice. Assessor signature Umah Ahmed Date 31/07/2025 Date of feedback to learner – this must be within a timely period of the assessment taking place and after internal verification has taken place. 31/07/2025 By signing the above declaration, you agree to your work and/or image (if featured in recorded and/or photographed files) to be used by Pearson or other Pearson group companies for: ( delete if not consenting to some of the following) • professional development, online support, and training of Centre Assessors • support and training for Pearson Examiners/Moderators • published resources • marketing materials Your personal details will be kept in accordance with GDPR, if you have any concerns regarding this, please contact us via the Pearson Contact Portal.
Merit
4 criteriaA.M1- You have analysed the dangers to flight posed by altitude and severe atmospheric conditions, identifying the nature of potential damage and explaining appropriate methods used to mitigate these risks.
A.M2- You have analysed the forces generated during aircraft flight, clearly identifying how excessive loading can result in specific types of structural damage to the airframe.
B.M3Conduct experiments accurately to determine the lift and drag forces produced from variable state and variable speed air flowing over different aerofoil sections set at three angles of attack.
C.M5Analyse aircraft control and stabilisation methods, including how they interact
Distinction
3 criteriaA.D1- You have evaluated, using technically correct and high‑standard language, how aircraft structural design mitigates the effects of excessive flight forces and how post‑flight inspection processes are used to identify and assess structural defects. General comments Well, done, Kevin, you have produced a really well-thought-out piece of work. Your work is very detailed, and well-structured. Keep it up. Learner Declaration - I certify that the evidence submitted for this assignment is my own. I have clearly referenced any sources and any artificial intelligence (AI) tools used in the work. I understand that false declaration is a form of malpractice. Learner signature Kevin Yanny Date 14/07/2025 Assessor declaration – I declare that the work submitted for assessment has been carried out without assistance other than that which is acceptable according to the rules of the specification. I certify that to the best of my knowledge the evidence submitted for Assessor signature Umah Ahmed Date 14/07/2025
B.D2Evaluate the lift and drag forces and lift / drag ratios produced from variable state, variable speed air flowing over the aerofoil sections under three angles of attack, comparing the results from safely conducted experiments and theoretical calculations
C.D3Justify the methods used to control and stabilise modern aircraft that fly at high subsonic and transonic speeds.
Command verbs in this unit
The verb decides the depth expected — that is what separates Pass from Merit and Distinction work on the same learning aim.
ConductExplainAnalyseEvaluateJustify
Pearson's ladder runs Identify → Describe → Explain → Compare / Analyse → Evaluate / Justify / Assess. A Merit or Distinction criterion on the same aim always implies the Pass beneath it: an “evaluate” answer that never first “explains” fails, however polished it reads. Hover a verb for what it demands.
Criteria and aim text reproduced for teacher reference from the official Pearson qualification documentation (Pearson BTEC International Level 3 Qualifications). BTEC is a registered trademark of Pearson Education Limited. checkb.tech is an independent tool — not affiliated with, endorsed by, or sponsored by Pearson. It never awards a grade; the teacher stays the assessor.