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Courses » Aircraft Stability and Control

Aircraft Stability and Control

About the course
This course is designed to understand stability and control aspects of an airplane. This course will also help in creating a background to design an airplane from stability and control aspects

Important For Certification/Credit Transfer:

Weekly Assignments and Discussion Forum can be accessed ONLY by enrolling here

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Note: Content is Free!

All content including discussion forum and assignments, is free


Final Exam (in-person, invigilated, currently conducted in India) is mandatory for Certification and has INR Rs. 1100 as exam fee

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Intended Audience
Core course for UG students

Industries that will recognize this course
NAL Bangalore, ARDE Pune, ADE Bangalore, ADA Bangalore

3243 students have enrolled already!!

Course instructor



Prof. A.K. Ghosh is a faculty of Aerospace Engg. Department of IIT Kanpur. He is also the in-charge of the flight laboratory and unmanned aerial vehicle of IIT Kanpur. His research areas include system identification through flight tests using conventional and neural network based methods, design of aircrafts and airborne projectiles, supercavitation, unmanned aerial systems. Before joining IIT Kanpur, he worked as a scientist with Defense Research Development Organization (DRDO). He has published many peer reviewed journal papers and conference papers, guided 13 doctoral students, and 38 masters students. He is also a mentor of multiple aerospace start-up companies, and also been associated with major industry contributions of high speed low drag aircraft bomb, Pinaka Mk-I, 105mm sabot round for tracked vehicles, etc.

Course layout


Week 1: 

Overview of aerodynamics and atmosphere     

Wing stall and maximum lift coefficient.     

Wing aerodynamic center & pitching moment.     

Introduction to static and dynamic stability.     

Revision.


Week 2: 

Introduction to static and dynamic stability.     

Wing contribution.     

Tail contribution.     

Canard and fuselage contribution.     

Revision. 


Week 3: 

Power plant contribution & its effect on NP.

Stick fixed neutral point.     

Static margin.    

Stick fixed : maneuvering point.     

Revision. 


Week 4: 

Elevator effectiveness, Elevator angle of trim.     

Flight measurement of Xnp.     

Elevator hinge moment.     

Stick forces (trim tab & stick force gradient),     

Revision. 


Week 5: 

Stick free neutral point.     

Stick free : maneuvering point.     

Roll stability and roll control.     

Yaw stability and yaw control.     

Revision.


Week 6: 

Newton’s second law of rigid dynamics.     

Axes system and relevant transforms.     

Angular motion equations.     

Angular motion equations.     

Revision. 


Week 7: 

Aerodynamic forces.

Gravitational and thrust forces.

Linearized equations of motion.

Linearized equations of motion: contd.     

Revision. 


Week 8: 

Force and moment derivatives.     

Force and moment derivatives.     

Contribution of aircraft components to aerodynamic derivatives.     

Linear model.     

Revision 


Week 9: 

Short period approximation.     

Long period approximation.     

Pure pitching motion.     

Flying and handling qualities.     

Revision 


Week 10: 

Linearized lateral dynamics.

Lateral motion :Linearized coupled motion.     

Roll approximation.     

Spiral approximation.     

Revision 


Week 11: 

Dutch roll approximation.

Pure rolling.

Pure yawing.     

Inertia coupling.     

Revision 


Week 12: 

Stability augmentation system: Longitudinal.     

Stability augmentation system: Longitudinal.     

Stability augmentation system: Lateral.     

Stability augmentation system: Lateral.     

Revision 
CERTIFICATION EXAM :
  • The exam is optional for a fee.
  • Date of Exams : October 28 (Sunday)
  • Time of Exams : Morning session 9am to 12 noon; Afternoon session: 2pm to 5pm
  • Exam for this course will be available in both morning & afternoon sessions.
  • Registration url: Announcements will be made when the registration form is open for registrations.
  • The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published.
CERTIFCATION:

  • Final score will be calculated as : 25% assignment score + 75% final exam score
  • 25% assignment score is calculated as 25% of average of  Best 8 out of 12 assignments
  • E-Certificate will be given to those who register and write the exam and score greater than or equal to 40% final score. Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kanpur.It will be e-verifiable at nptel.ac.in/noc.