Chapter 4 - Preventative Measures and Deicing Procedures

Forced Air Augmented with Type I Fluid

102.  Heated Type I fluid is injected into the high-speed air stream. One advantage of this deicing method compared to the air alone system is that heated Type I fluid carries more thermal energy than just air alone. Heat is the principle mechanism for removing adhering contaminants from an aircraft's critical surfaces; hence the ability to remove contaminants is enhanced with this method.