In-Flight Icing and its Effects on Aircraft Handling Qualities – Theory and Practice
January 12, 2019This course will consist of a ground school covering all pertinent aspects of aircraft icing. A combination of guest lecturers, who are experts in various fields of icing technology, flight testing, and flight operations, will provide a comprehensive curriculum covering the following subject matter:
- Icing Meteorology including Supercooled Large Droplet (SLD) icing
- Ice shape formations and how they relate to the physical properties of icing clouds
- Aerodynamic effects of icing on airfoils
- Practical applications of aircraft stability and control characteristics and performance to selected icing certification testing
- Flight test results of icing effects on aircraft performance, stability and control, including SLD and Ice Contaminated Tailplane Stall
- Icing related upsets
- Methods and facilities for icing simulation: computation fluid dynamics codes (LEWICE), wind tunnels, airborne tankers
- FAR 23/25 icing certification requirements including discussion of AC 25-25
WHO SHOULD ATTEND
- Engineering personnel who are involved in aerodynamic analysis and icing simulations, especially those using computational fluid dynamics (CFD) tools
- FAA engineers and Designated Engineering Representatives (DERs), meteorologists, and program managers
PREREQUISITES
COURSE OBJECTIVES
- Become familiar with and understand how to apply the Airworthiness Standards for FAR Part 23 and FAR Part 25 in an aircraft icing certification program.
- Understand the meteorological aspects of how, when, and where icing clouds form as they apply to the various types of ice formations. Learn about use and availability of weather forecasting tools for planning aircraft icing flight test operations.
- Understand the physics of ice formation, and how various ice shapes affect aircraft aerodynamics.
- Become familiar with the flight test process for conducting an icing certification program, and how manufacturers approach this process.
- Describe how strategic and tactical planning is used in an icing flight test program and how the safety risk management process is conducted.
- Gain knowledge of how ice accumulations on aircraft surfaces affect performance, stability and control, and handling qualities. Understand the reasons and characteristics for upset conditions due to aircraft ice formations.
- Provide a summary of capabilities and availability of icing wind tunnels, inflight icing tankers, and climatic laboratories, which may be used to support an icing certification program.
- Understand the capabilities and application of computational ice accretion codes in the icing certification process. Participate in a laboratory exercise and practice using the LEWICE ice accretion code.
SAMPLE CURRICULUM
Day One – Icing Theory
Introduction
Icing Meteorology
Case Study: Weather Brief
Inflight Icing Testing
Aerodynamic Effects of Icing and Wind Tunnels
Icing Effects on Stability and Control, Performance, and Aircraft Handling
Day Two – Icing Certification
Certification of Modern Transport Aircraft
FAR 25 Icing Certification
FAR 23 Icing Certification
Current Issues in Icing Certification
Day Three – Research & Facilities
Engine Icing Research
Wind Tunnels
Airborne Tankers
Climatic Facilities
Day Four – Icing Codes
2D Icing Codes Overview
LEWINT
Thermal Protection Systems
| Single Seat |
807 William Northern Blvd
Tullahoma Tennessee 37388
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