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GATE Aerospace Engineering Syllabus 2023 consists of 6 sections including Engineering Mathematics, Flight Mechanics, Aerodynamics, Structures, Propulsion and Space Dynamics. Each section of the syllabus is further divided into ‘Core Topics’ and ‘Special Topics’. Apart from these six sections, GATE 2023 Aerospace Engineering Exam will include a section on General Aptitude. In the GATE Aerospace Engineering Exam, 85% of the questions are asked from the GATE Aerospace Engineering Syllabus plus Engineering Mathematics and the remaining 15% questions are asked from the general aptitude section. Further, each section consists of about 90% of the questions from the core aerospace topics with the rest 10% from the special topics. GATE 2023 Aerospace Engineering paper would consist of a total of 65 Questions and 100 Marks Check GATE 2023 Exam Pattern
GATE 2023 is scheduled on February 4, 5, 11, and 12, 2023 with the official notice. Aerospace Engineering graduates (Code: AE) applying for GATE 2023 have an option of undertaking Engineering Sciences (Code: XE) as their second paper. Students preparing for the upcoming GATE exam can refer to GATE 2023 Preparation Tips for help.
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GATE Aerospace Engineering Syllabus 2023
GATE Aerospace Engineering Syllabus consists of 6 sections. In each of the sections, the topics have been divided into two categories – Core Topics and Special Topics.The paper would consist of about 90% of the questions from the core aerospace topics with the rest 10% from the Special Topics for the respective sections
Section 1: Engineering Mathematics
Engineering mathematics is a branch of applied mathematics concerning mathematical methods and techniques that are typically used in engineering and industry. It is one of the difficult sections of the paper. This section carries fifteen percent weightage of the total questions. The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Linear Algebra | Fourier Series, Laplace Transforms, Complex analysis, Probability and statistics. |
| Calculus | Numerical methods for linear and nonlinear algebraic equations |
| Differential Equations | Numerical integration and differentiation. |
Section 2: Flight Mechanics
Flight mechanics are related to the operations of fixed-wing (gliders, airplanes) and rotary wing (helicopters) aircrafts. An Aeroplane (Airplane in US usage), is defined in ICAO Document 9110. The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Basics: Atmosphere: Properties, standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts. Pressure altitude; equivalent, calibrated, indicated air speeds; Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Angle of attack, sideslip; Roll, pitch & yaw controls. Aerodynamic forces and moments. | Dynamic stability, Euler angles, Equations of motion |
| Airplane performance: Drag polar; takeoff and landing; steady climb & descent; absolute and service ceiling; range and endurance, load factor, turning flight, V-n diagram. Winds: head, tail & cross winds. | Longitudinal modes, lateral-directional modes. |
| Static stability: Stability & control derivatives; longitudinal stick fixed & free stability; horizontal tail position and size; directional stability, vertical tail position and size; lateral stability. Wing dihedral, sweep & position; hinge moments, stick forces. | Decoupling of longitudinal and lateral-directional dynamics |
Section 3: Aerodynamics
Aerodynamics is the study of the motion of air, particularly its interaction with a solid object, such as an airplane wing. Aerodynamics is a sub-field of fluid dynamics and gas dynamics, and many aspects of aerodynamics theory are common to these fields. The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Basic Fluid Mechanics: Conservation laws: Mass, momentum and energy (Integral and differential form) Dimensional analysis and dynamic similarity; Potential flow theory: sources, sinks, doublets, line vortex and their superposition. Elementary ideas of viscous flows including boundary layers. | Shock - boundary layer interaction. |
| Airfoils and wings: Airfoil nomenclature; Aerodynamic coefficients: lift, drag and moment; Kutta-Joukoswki theorem Thin airfoil theory, Kutta condition, starting vortex; Finite wing theory: Induced drag Prandtl lifting line theory; Critical and drag divergence Mach number. | Wind Tunnel Testing |
| Compressible Flows: Basic concepts of compressibility, One-dimensional compressible flows, Isentropic flows Fanno flow, Rayleigh flow; Normal and oblique shocks, Prandtl-Meyer flow; Flow through nozzles and diffusers. | Measurement and visualization techniques |
Section 4: Structures
A structure is an arrangement and organization of interrelated elements in a material object or system. Material structures include man-made objects such as buildings and machines and natural objects such as biological organisms, minerals, and chemicals. Abstract structures include data structures in computer science and musical form. The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Strength of Materials: Stress and strain: Three-dimensional transformations, Mohr's circle, principal stresses Three-dimensional Hooke's law, Plane stress and strain. Failure theories: Maximum stress, Tresca and von Mises. Strain energy. Castigliano's principles. Statically determinate and indeterminate trusses and beams. Elastic flexural buckling of columns. | Vibration of beams |
| Flight vehicle structures: Characteristics of aircraft structures and materials. Torsion, bending and shear of thin-walled sections. Loads on aircraft. | Theory of elasticity |
| Structural Dynamics: Free and forced vibrations of undamped and damped SDOF systems. Free vibrations of undamped 2-DOF systems. | Equilibrium and compatibility equations, Airy’s stress function. |
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Section 5: Propulsion
Propulsion is a means of creating force leading to movement. A propulsion system consists of a source of mechanical power, and a propulsor (means of converting this power into propulsive force). The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Basics: Thermodynamics, boundary layers, heat transfer, combustion and thermochemistry. | Aerothermodynamics of non-rotating propulsion components such as intakes, combustor and nozzle. |
| Aerothermodynamics of aircraft engines: Thrust, efficiency, range. Brayton cycle. Engine performance: ramjet, turbojet, turbofan, turboprop and turboshaft engines. Afterburners. | Turbine blade cooling. |
| Turbomachinery: Axial compressors: Angular momentum, work and compression, characteristic performance of a single axial compressor stage Efficiency of the compressor and degree of reaction, multi-staging. Centrifugal compressor: Stage dynamics, inducer, impeller and diffuser. Axial turbines: Stage performance. | Compressor-turbine matching |
| Rockets: Thrust equation and specific impulse, rocket performance. Multi-staging. Chemical rockets. Performance of solid and liquid propellant rockets. | Surge and stall |
Section 6: Space Dynamics
Space dynamics is the study of man made objects in space when subjected to natural forces or any artificially induced forces in space. The topics include in this section are -
| Core Topics | Special Topics |
|---|---|
| Central force motion, determination of trajectory and orbital period in simple cases. Kepler’s laws; escape velocity. | Orbit transfer, in-plane and out-of-plane. |
Section 7 :General Aptitude
General Aptitude is a common section to all the GATE Papers. It is helpful for testing the analytical skills along with comprehension skills sof the candidate. The topics include in this section are
| Verbal Ability | Numerical Ability |
|---|---|
| English grammar; Sentence completion, Instructions; Verbal analogies, Word groups; Critical reasoning, Verbal deduction. | Numerical computation; Numerical reasoning; Numerical estimation; Data interpretation. |
GATE Aerospace Engineering Syllabus 2023– Weightage of Important Topics
| Section | Total Number of Questions |
|---|---|
| Engineering Mathematics | 9 |
| Basics of Flight Mechanics | 5 |
| Airplane Performance | 3 |
| Basic Fluid Mechanics | 5 |
| Airfoil and WIngs | 6 |
| Compressible Flows | 3 |
| Strength of Materials | 5 |
| Flight Vehicle Structures | 3 |
| Structural Dynamics | 4 |
| Basics of Propulsion | 2 |
| Aerothermodynamics of Blade Engines | 4 |
| Turbomachinery | 3 |
| Space Dynamics | 3 |
GATE 2023 Aerospace Engineering Exam Pattern
The details of the Exam Pattern are given below. Check GATE 2023 Exam Pattern
- Mode of Examination: Online
- Duration of Exam: 3 hours
- Types of Questions: MCQs and NAT
- Sections: 3 sections – General Aptitude, Mathematics and Subject-based
- Total Questions: 65 questions
| Section | Distribution of Marks | Total Marks | Types of questions |
|---|---|---|---|
| General Aptitude | 5 questions of 1 mark each 5 questions of 2 marks each | 15 marks | MCQs |
| Engineering Mathematics Subject Syllabus (AE) | 25 questions of 1 mark each 30 questions of 2 marks each | 85 marks | MCQs and NATs |
GATE 2023 Marking scheme:
- Total Marks: 100 marks
- Negative Marking: For MCQs only
| Type of question | Negative marking for wrong answer |
|---|---|
| MCQs | ⅓ for 1 mark questions ⅔ for 2 marks questions |
| NATs | No negative marking |
Must Read: How to calculate GATE Score?
GATE Aerospace Engineering Syllabus 2023: Preparation
- Solving Practice Papers
- Solve practice papers daily to get a better and clear idea of exam pattern, type of questions, difficulty level, etc.
- Judge your weak areas.
- Do not panic if you are not able to solve the questions.
- Try to Complete whole Syllabus
- Do not leave any topic for the end. Try to complete your syllabus 1-2 weeks before the exam.
- After completion of your syllabus, you must start with your revisions.
- Go through your syllabus again and again so that you won’t miss any topic.
- Regular Practice
- Daily practice of questions will help you in aging speed.
- Candidates have to keep one more thing in mind that with speed you have to improve the level of accuracy also.
- Try to solve more and more mock tests.
GATE Aerospace Engineering Syllabus 2023: Important Books
One of the most efficient tools to prepare for any exam are the reference books for it. Reference books offer all the insights and subject materials related to the subject. Candidates can check the section-wise important book for GATE 2023 Aerospace Engineering in the lists given below:
Important Books For Engineering Mathematics
| Books | Author/Publisher |
|---|---|
| GATE Engineering Mathematics for All Streams | Abhinav Goel and Suraj Singh, Arihant Publication |
| GATE Engineering Mathematics | Abhinav Goel, Arihant Publications |
| GATE 2020: Engineering Mathematics | ME Team, Made Easy Publications |
| Higher Engineering Mathematics | B.S.Grewal, Khanna Publishers |
Important Books For Flight Mechanics
| Books | Author/Publisher |
|---|---|
| Introduction to Flight | John D Anderson, Tata McGraw - Hill Education |
| Flight Mechanics Modeling and Analysis | Jitendra R. Raol, Jatinder Singh, Crc Press |
| Mechanics of Flight | R. H. Barnard, Pearson |
| Mechanics of Flight | C. Kermode, R. H. Barnard, Pearson Higher Education |
Must Read: Online Coaching Centers for GATE 2023 Preparation
Important Books For Aerodynamics
| Books | Author/Publisher |
|---|---|
| Fundamentals of Aerodynamics | John D Anderson, Tata McGraw - Hill Education |
| Aerodynamics for Engineering Students | E. L. Houghton, P. W. Carpenter, Butterworth Heinemann |
| Fundamentals of Aerodynamics | John D. Anderson, Tata McGraw - Hill Education(2010) |
| Aerodynamics for Engineers | John J. Bertin, Pearson |
Important Books for Structure
| Structure | Structure |
|---|---|
| Theory of Structures | Ramamrutham, Dhanpat Rai Publishing Company |
| Structural Analysis | S.S. Bhavikatti, Vikas Publishing House |
| Matrix Methods of Structural Analysis | S.S. Bhavikatti, I K International Publishing House Pvt. Ltd |
| Theory of Structures SMTS | B.C. Punmia, Ashok Kumar Jain, Laxmi Publications |
Important Books for Propulsion
| Books | Author/Publisher |
|---|---|
| Rocket Propulsion Elements | George P. Sutton, Wiley India Pvt Ltd |
| Aircraft Propulsion | Mayur R. Anvekar, Prentice-Hall of India Pvt.Ltd |
| Marine Propellers and Propulsion | Carlton |
| Submarine Propulsion: Muscle Power to Nuclear | Sekhar Basu, Kamlesh N Vyas, Frontier India |
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GATE Aerospace Engineering Previous Year Question Papers and Answer Keys
GATE conducting authorities release GATE Question Papers for all 27 papers and all the exams for the year have been concluded. The authorities also release respective GATE Answer Key along with the question papers on their official website. Going through previous years GATE question paper gives an insight into the important topics from GATE Syllabus. Given below are the links to download the previous year GATE Question Paper from 2021, 2020, 2019, 2018.
| Year | GATE Question paper | Answer Key |
|---|---|---|
| 2021 | Download | Download |
| 2020 | Download | Download |
| 2019 | Download | Download |
| 2018 | Download | Download |
GATE Aerospace Engineering Syllabus 2023 : Sample Questions
Sample Question 1: While flying at Mach 2.0, 11 km altitude and producing the same thrust, what is the correct order from the lowest thrust specific fuel consumption (tsfc) to the highest tsfc?
Sample Question 2: A thin plate with Young’s modulus 210 GPa and Poisson’s ratio 0.3 is loaded as shown in the figure. The change in length along the y-direction is __________ mm (round off to 1 decimal place).
Sample Question 3: For a symmetric airfoil at an angle of attack of 10 degrees, assuming thin airfoil theory, the magnitude of the pitching moment coefficient about the leading edge is__________ (round off to 2 decimal places).
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GATE 2023 Syllabus Of Other Papers
GATE Aerospace Engineering Syllabus 2023 FAQs
Ques: What will be the section-wise weightage of topics from GATE Aerospace Engineering Syllabus 2023 in the exam ?
Ans: The section-wise weightage of the GATE Aerospace Engineering Syllabus 2023 in the exam is :
- The maximum weightage will be given to the Core Topics i.e. 90%
- 10% weightage will be given to Special Topics
Apart from this the sectional weightage in GATE 2023 is:
| GATE 2023 Sectional Weightage | |
|---|---|
| Engineering Mathematics | 15% |
| General Aptitude | 15% |
| Topics From Aerospace Engineering | 70% |
Ques: What are the important topics from GATE Aerospace Engineering Syllabus 2023 that will help in scoring good marks?
Ans: Some of the important topics in GATE Aerospace Engineering Syllabus 2023 are:
- Dynamic stability, Euler angles, Equations of motion, Aerodynamic forces and moments
- Equilibrium and compatibility equations, Airy’s stress function.
- Decoupling of longitudinal and lateral-directional dynamics, longitudinal modes, lateral-directional modes.
Ques: Which are the best books for preparing GATE Aerospace Engineering Syllabus 2023 ?
Ans: Some of the best books for GATE Aerospace Engineering Syllabus 2023 are:
- Rocket Propulsion Elements – By George P. Sutton, Wiley India Pvt Ltd
- Fundamentals of Aerodynamics – By John D Anderson
- Introduction to Flight – By John D Anderson
Ques. What is the paper code for GATE Aerospace Engineering?
Ans: The paper code for GATE Aerospace Engineering is AE. Engineering graduates (Code: AE) applying for GATE 2023 have an option of undertaking Engineering Sciences (Code : XE) as their second paper.
Ques. What are the topics included in Engineering Mathematics for GATE Aerospace Engineering Syllabus 2023?
Ans. Engineering Mathematics in GATE Aerospace Engineering Syllabus 2023 consists of the following topics:
| Core topics | Special Topics |
|---|---|
| Linear Algebra | Fourier Series, Laplace Transforms, Complex analysis, Probabil+ity and statistics. |
| Calculus | Numerical methods for linear and nonlinear algebraic equations |
| Differential Equations | Numerical integration and differentiation. |
Ques. What are the topics included in Flight Mechanics in GATE Aerospace Engineering Syllabus 2023?
Ans. Flight Mechanics in GATE Aerospace Engineering Syllabus 2023 consists of the following topics:
| Core Topics | Special Topics |
|---|---|
| Basics: Atmosphere: Properties, standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts. Pressure altitude; equivalent, calibrated, indicated air speeds; Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Angle of attack, sideslip; Roll, pitch & yaw controls. Aerodynamic forces and moments. | Dynamic stability, Euler angles, Equations of motion |
| Airplane performance: Drag polar; takeoff and landing; steady climb & descent; absolute and service ceiling; range and endurance, load factor, turning flight, V-n diagram. Winds: head, tail & cross winds. | Longitudinal modes, lateral-directional modes. |
| Static stability: Stability & control derivatives; longitudinal stick fixed & free stability; horizontal tail position and size; directional stability, vertical tail position and size; lateral stability. Wing dihedral, sweep & position; hinge moments, stick forces. | Decoupling of longitudinal and lateral-directional dynamics |
Ques. What are the topics included in Aerodynamics for GATE Aerospace Engineering Syllabus 2023?
Ans. Aerodynamics in GATE Aerospace Engineering Syllabus 2023 consists of the following topics:
| Core Topics | Special Topics |
|---|---|
| Basic Fluid Mechanics: Conservation laws: Mass, momentum and energy (Integral and differential form) Dimensional analysis and dynamic similarity; Potential flow theory: sources, sinks, doublets, line vortex and their superposition. Elementary ideas of viscous flows including boundary layers. | Shock - boundary layer interaction. |
| Airfoils and wings: Airfoil nomenclature; Aerodynamic coefficients: lift, drag and moment; Kutta-Joukoswki theorem Thin airfoil theory, Kutta condition, starting vortex; Finite wing theory: Induced drag Prandtl lifting line theory; Critical and drag divergence Mach number. | Wind Tunnel Testing |
| Compressible Flows: Basic concepts of compressibility, One-dimensional compressible flows, Isentropic flows Fanno flow, Rayleigh flow; Normal and oblique shocks, Prandtl-Meyer flow; Flow through nozzles and diffusers. | Measurement and visualization techniques |
Ques. What are the topics included in Structures for GATE Aerospace Engineering Syllabus 2023?
Ans. Structures in GATE Aerospace Engineering Syllabus 2023 consists of the following topics:
| Core Topics | Special Topics |
|---|---|
| Strength of Materials: Stress and strain: Three-dimensional transformations, Mohr's circle, principal stresses Three-dimensional Hooke's law, Plane stress and strain. Failure theories: Maximum stress, Tresca and von Mises. Strain energy. Castigliano's principles. Statically determinate and indeterminate trusses and beams. Elastic flexural buckling of columns. | Vibration of beams |
| Flight vehicle structures: Characteristics of aircraft structures and materials. Torsion, bending and shear of thin-walled sections. Loads on aircraft. | Theory of elasticity |
| Structural Dynamics: Free and forced vibrations of undamped and damped SDOF systems. Free vibrations of undamped 2-DOF systems. | Equilibrium and compatibility equations, Airy’s stress function. |
Ques. What are the important topics included in Propulsion for GATE Aerospace Engineering Syllabus 2023?
Ans. Propulsion in GATE Aerospace Engineering Syllabus 2023 have following as important topics:
- Basics: Thermodynamics, boundary layers, heat transfer, combustion and thermochemistry.
- Aerothermodynamics of aircraft engines: Thrust, efficiency, range. Brayton cycle.
Engine performance: ramjet, turbojet, turbofan, turboprop and turboshaft engines. Afterburners.
- Turbomachinery: Axial compressors: Angular momentum, work and compression, characteristic performance of a single axial compressor stage
- Efficiency of the compressor and degree of reaction, multi-staging.
- Centrifugal compressor: Stage dynamics, inducer, impeller and diffuser. Axial turbines: Stage performance.
- Rockets: Thrust equation and specific impulse, rocket performance. Multi-staging. Chemical rockets.Performance of solid and liquid propellant rockets.
Ques: What will be the marking scheme of GATE 2023 Aerospace engineering paper?
Ans: Yes, there will be negative marking in the examination. Negative marking depends on the type and marks of questions. For NAT questions there will be no negative marking but for 1 or 2 marks ½ and 2/3 marks will be deducted respectively for wrong answers.
| Type of question | Negative marking for the wrong answer |
|---|---|
| MCQs | 1/3 for 1 mark questions 2/3 for 2 marks questions |
| NATs | No negative marking |
Ques. What are the topics included in Space Dynamics for GATE Aerospace Engineering Syllabus 2023?
Ans. Space Dynamics in GATE Aerospace Engineering Syllabus 2023 consists of the following topics:
| Core Topics | Special Topics |
|---|---|
| Central force motion, determination of trajectory and orbital period in simple cases. Kepler’s laws; escape velocity. | Orbit transfer, in-plane and out-of-plane. |
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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