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Questions and Answers
What marks the end of the detail design phase in aircraft development?
What marks the end of the detail design phase in aircraft development?
Which organization is responsible for regulating international air travel?
Which organization is responsible for regulating international air travel?
What is one of the key responsibilities of the International Civil Aviation Organization?
What is one of the key responsibilities of the International Civil Aviation Organization?
What does SARPs stand for in the context of aviation regulations?
What does SARPs stand for in the context of aviation regulations?
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Which event set the foundational principles for international civil aviation?
Which event set the foundational principles for international civil aviation?
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As of 2016, how many contracting states were members of ICAO?
As of 2016, how many contracting states were members of ICAO?
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What do PANS stand for in the context of international aviation?
What do PANS stand for in the context of international aviation?
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Which of the following best describes ICAO's role in aviation safety?
Which of the following best describes ICAO's role in aviation safety?
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What is the primary concern when weight growth factors exceed 10 during aircraft design?
What is the primary concern when weight growth factors exceed 10 during aircraft design?
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What does the preliminary design phase involve after establishing an aircraft conceptual layout?
What does the preliminary design phase involve after establishing an aircraft conceptual layout?
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In the context of aircraft design, what is meant by parametric studies?
In the context of aircraft design, what is meant by parametric studies?
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Why is optimisation based on minimum weight considered acceptable in aircraft design?
Why is optimisation based on minimum weight considered acceptable in aircraft design?
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What types of analyses are necessary to ensure the validity of assumptions in aircraft design?
What types of analyses are necessary to ensure the validity of assumptions in aircraft design?
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What is the significance of using sophisticated analysis techniques in aircraft design?
What is the significance of using sophisticated analysis techniques in aircraft design?
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What role does sensitivity analysis play in the aircraft design process?
What role does sensitivity analysis play in the aircraft design process?
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What is a potential outcome if the assumptions regarding aerodynamics and propulsion efficiency are found to be invalid?
What is a potential outcome if the assumptions regarding aerodynamics and propulsion efficiency are found to be invalid?
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Which author wrote 'Introduction to aircraft design'?
Which author wrote 'Introduction to aircraft design'?
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What is the maximum seating capacity for Level 1 aircraft under the new certification classification?
What is the maximum seating capacity for Level 1 aircraft under the new certification classification?
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What is the focus of the book 'Aircraft conceptual design synthesis'?
What is the focus of the book 'Aircraft conceptual design synthesis'?
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Which book is part of the AIAA Education Series?
Which book is part of the AIAA Education Series?
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What is the primary goal of the Preliminary Design Phase in aircraft development?
What is the primary goal of the Preliminary Design Phase in aircraft development?
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Which category is used to classify aircraft with a VNO or VMO greater than 250 KCAS?
Which category is used to classify aircraft with a VNO or VMO greater than 250 KCAS?
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What does the term MMO refer to in the context of aircraft performance?
What does the term MMO refer to in the context of aircraft performance?
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Which of the following activities is NOT typically performed during the Preliminary Design Phase?
Which of the following activities is NOT typically performed during the Preliminary Design Phase?
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Which book focuses on layout design of the cockpit, fuselage, wing, and empennage?
Which book focuses on layout design of the cockpit, fuselage, wing, and empennage?
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What crucial input is determined from the inboard profile of the aircraft?
What crucial input is determined from the inboard profile of the aircraft?
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What year was 'Civil jet aircraft design' published?
What year was 'Civil jet aircraft design' published?
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Which document is issued by the FAA for guidance on compliance with regulations?
Which document is issued by the FAA for guidance on compliance with regulations?
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Which of the following specializes in airplane cost estimation?
Which of the following specializes in airplane cost estimation?
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Which categories of aircraft are transitioned under the new CS-23 certification specification?
Which categories of aircraft are transitioned under the new CS-23 certification specification?
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Which technique is primarily used for flow visualization and aerodynamic analysis during this phase?
Which technique is primarily used for flow visualization and aerodynamic analysis during this phase?
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How many person-hours might the Preliminary Design Phase require for complex aircraft?
How many person-hours might the Preliminary Design Phase require for complex aircraft?
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What is the primary reason for the major revision of FAR Part 23 in 2016?
What is the primary reason for the major revision of FAR Part 23 in 2016?
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Which book focuses on preliminary sizing of airplanes?
Which book focuses on preliminary sizing of airplanes?
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Which aspect of the aircraft does the preliminary design work primarily involve specialists in?
Which aspect of the aircraft does the preliminary design work primarily involve specialists in?
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What is required for uncertified aircraft to receive a permit to fly?
What is required for uncertified aircraft to receive a permit to fly?
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Who authored the book 'Introduction to aeronautics: A design perspective'?
Who authored the book 'Introduction to aeronautics: A design perspective'?
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What does the process of lofting in aircraft design specifically refer to?
What does the process of lofting in aircraft design specifically refer to?
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What types of documents do European authorities issue for compliance guidance?
What types of documents do European authorities issue for compliance guidance?
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What is an important consideration during the detail design phase to minimize impacts on the aircraft?
What is an important consideration during the detail design phase to minimize impacts on the aircraft?
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What does the specific air range (ra) represent in terms of aircraft efficiency?
What does the specific air range (ra) represent in terms of aircraft efficiency?
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Which of the following is NOT a term constituting the specific air range (SAR)?
Which of the following is NOT a term constituting the specific air range (SAR)?
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Increasing which term would directly improve the specific air range (SAR) of an aircraft?
Increasing which term would directly improve the specific air range (SAR) of an aircraft?
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Which technology could help to improve the aerodynamic term in the specific air range equation?
Which technology could help to improve the aerodynamic term in the specific air range equation?
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What is the role of thrust specific fuel consumption (TSFC) in calculating specific air range?
What is the role of thrust specific fuel consumption (TSFC) in calculating specific air range?
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Which parameter can affect the instantaneous weight (W) of an aircraft?
Which parameter can affect the instantaneous weight (W) of an aircraft?
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What does a higher lift-to-drag ratio (L/D) imply for aircraft performance?
What does a higher lift-to-drag ratio (L/D) imply for aircraft performance?
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How can reducing structural airframe weight benefit an aircraft's efficiency?
How can reducing structural airframe weight benefit an aircraft's efficiency?
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Study Notes
Module ME 4807: Aircraft Systems Engineering and Conceptual Design
- Academic Year 2024/25
- Prepared by Professor Trevor M. Young, School of Engineering, University of Limerick
- Lecture notes are for student use only and may not be reproduced for any other purpose
- Notes extracted from published works, journal articles, conference papers, regulations and standards.
Acknowledgement
- Collection of lecture notes printed for students at the University of Limerick
- Not for profit
- Students should be aware that the notes are for personal use and may not be reproduced for any other purpose
- Figures reproduced from sources are acknowledged
- Module lecture notes by Prof. T.M. Young, University of Limerick, Limerick V94T9PX, Ireland. (This is the author and institution.)
Contents
- Introduction to aircraft systems engineering and design
- Original design, systems engineering
- Phases of an aircraft project
- Design requirements, mission specifications, RFP (Request for Proposal)
- Airworthiness regulations, standards
- General arrangement
- Concept sketches
- Wing position
- Location of engines
- Tailplane arrangement
- Preliminary sizing of aircraft
- Takeoff and empty weight estimation
- Parametric analysis
- Thrust-to-weight ratio (or power loading) versus wing loading
- Matching of requirements; design point selection
- Wing layout: Part 1
- Aerofoil selection
- Stall
- Planform selection, aspect ratio, sweep
- Wing layout: Part 2
- Wing incidence, dihedral
- Wing-tips
- High lift devices
- Control surface layout
- Aerodynamic crutches
- Fuselage layout
- Crew station
- Passenger compartment
- Cargo
- Fuselage shape
- Tail Layout
- Sizing of horizontal stabiliser (tail plane)
- Sizing of vertical stabiliser (fin)
- Stability, trim and control
- Integration of propulsion system
- Powerplant types
- Jet engine integration
- Inlets and nozzles
- Piston-propeller integration
- Landing gear (undercarriage)
- Landing gear configurations
- Layout requirements
- Gear retraction
- Tyres and shock absorbers
- Aircraft Weights
- Group weight statement
- Weights estimation
- CG position, load and balance diagram
- Structures, vulnerability, producibility, maintainability and reliability
- Structural layout
- Vulnerability and crashworthiness
- Producibility
- Maintainability
- Reliability
- Environmental considerations
- Noise sources and measurement
- Regulations and compliance
- Emissions and environmental damage
- Pathways to mitigate environmental impact
- Fuel system integration
- Conceptual design and fuel systems
- Fuel system layout
- Reducing trim drag
- Aircraft shaping / lofting
- Fuselage lofting / shape definition
- Wing, tail layout and loft
- Area rule
- Cost factors
- Life cycle cost
- Cost estimation
- Design factors influencing cost
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