Table of Contents TP 10643
- How to Use This Manual
- Record of Revisions
- Foreword
- Chapter 1 - Air Law, The Clean Aircraft Concept
- Chapter 2 - Theory and Aircraft Performance
- Chapter 3 - Deicing/Anti-icing Fluids
- Chapter 4 - Preventative Measures and Deicing Procedures
- Chapter 5 - Ground Crew Supplement
- Chapter 6 - Aircraft Critical Surface Contamination Examination Questions
- List of Tables
- Acronyms
- Glossary
One-step Deicing/Anti-icing
65. Generally, in Canada the use of a one step process suggests that there isn't any active precipitation occurring at the time of deicing. However, in Europe the one step method is used with Type II & Type IV anti-icing fluids in a diluted and heated state, and applied with a specialized nozzle. Also, in Canada's Northern communities, given the extremely low temperatures, the only fluid option has been the Type I fluids, and a one step procedure is sometimes used despite the associated short Hold Over Times.
66. The thickened fluids, Types II, III & IV, should not be used unheated on an aircraft contaminated with any snow ice or frost. The aircraft surfaces must first be cleaned before application of an unheated fluid Two-step Deicing/Anti-icing.