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Introduction to On-ground and In-Flight Aircraft Icing

The areas of on-ground and in-flight icing are intimately related, with the second taking over from the first as soon as the airplane takes off. While safe operation for on-ground icing is the responsibility of the airline, guaranteeing safety for flying into known icing is, for the most part, the responsibility of the aircraft manufacturer. While the airline can make timely decisions based on weather conditions, the manufacturer must ensure that the aircraft is safe in all conditions any operator is legally allowed to dispatch it in. This is a much higher responsibility that must be guaranteed from the start and that cannot benefit from adjustments or timely decision-making processes; lending credence to the adage: “Take-off may be optional; landing, however, is a must”. The aim of this course is to familiarize participants with both aspects of on-ground and inflight icing, and how they are intimately linked.

Date: TBA
Time: 9am – 5pm
Location: 688 Sherbrooke Street West
Fee: $1,095 CAD plus applicable taxes

This course is also available in French.


This course will provide a holistic view and integrated approach to the different aspects of icing (on-ground and in-flight), as experienced by de-icing operators, ATCs, dispatchers, pilots and manufacturers. Participants will not only learn, but will also, perhaps, contribute to a better harmonization of these activities.

Who Should Attend

Aircraft manufacturers, Airline operators, Pilots, Air traffic controllers.


At the end of this workshop participants will be able to:

  • Gain a better understanding of the treacherous nature of ice, whether on-ground or in-flight,
  • Appreciate the fact that each step of the ice protection process is linked to the next one and must be thought ought in an integrated manner,
  • Evaluate new techniques for dispatching aircraft, training of pilots and ATCs

Topics Covered

  • On-ground icing causes and effects
  • FAA/TC rules for take-off under icing conditions
  • Methods of de-icing of aircraft
  • De-icing fluids
  • De-icing stations, holdover times
  • Ground contamination, excess fluid left on runways
  • To dispatch, or not to dispatch: can CFD help?
  • In-flight icing causes, effects
  • Appendix C (D &O)
  • Aircraft anti-icing and de-icing systems; hot air and electrothermal anti-icing
  • Pilot training
  • SLD (supercooled large droplets), ice crystals.


Dr. Wagdi G. Habashi, McGill

Fellow, Academy of Science, Royal Society of Canada, Canadian Academy of Engineering, AIAA and ASME

Editor-in-Chief: International Journal of Computational Fluid Dynamics

Professor Wagdi Habashi holds the NSERC-J. Armand Bombardier-Bell Helicopter-CAE Industrial Research Chair for Multi-disciplinary Analysis and Design of Aerospace Systems in the Mechanical Engineering Department of McGill University and directs its Computational Fluid Dynamics Laboratory. He is also a Research Fellow of Pratt & Whitney Canada. Dr. Habashi is the founder- President of Newmerical Technologies International, a company active in the field of in-flight icing.

Dr. Wagdi Habashi is the recipient of numerous scientific awards for his aerospace work, such as the Killam Engineering Prize, the AIAC James Floyd Award and the CASI McCurdy Award.

Dr. François Morency, ETS

Dr. Morency holds a Ph. D. in Mechanical Engineering (aeronautics) from École Polytechnique de Montréal and is currently a professor at ETS, where he teaches fluid mechanics, thermodynamics, and the design of aircraft.  His research activities focus on the application of computational fluid dynamic (CFD) tools to design problems from the aviation industry.  Dr. Morency has worked for more than 15 years in aircraft icing simulation. He regularly presents his research results at the American Institute of Aeronautics and Astronautics (AIAA) conferences.

Dr. Morency developed a numerical tool for the study of aircraft de-icing systems based on panel methods and integral boundary layer methods. In 2000, Dr. Morency started his post-doctoral studies at McGill University in the CFD laboratory of Professor Habashi.  He then participated in the development of an ice simulation code based on three-dimensional model and finite element method.

Cancellation Policy

All cancellation & substitution requests must be made in writing. The following Cancellation Policy applies:

Up to 14 days prior to the start date: Full refund
7 days prior to the start date: Refund minus $100 Cancellation fee
Within 7 days of the start date: No Refund, however suitable participation substitution will be permitted

If no notice is given prior to the start of the event(s) and you fail to attend, you will be liable for the full course fee.

McGill SCS reserves the right to cancel an event up to 5 days prior to its start.

Contact Information

Telephone: 514-398-5454
E-mail: pd.conted [at]

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