3. De-icing Process
Type I Fluid
De-icing fluid with low viscosity or “unthickened” for removing ice and snow,
glycol/water mixture heated, usually dyed orange
Type II Fluid
Anti-icing thickened fluid designed to remain in place to 100 knots, usually
dyed yellow
Type III Fluid
Anti-icing thickened fluid designed for slower aircraft with rotation speeds
under 100 knots, usually dyed yellow
Type IV Fluid
Similar to Type II fluids with a longer holdover time, usually dyed green
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11. Infrared De-icing
Available at JFK and Wisconsin’s Rhinelander-Oneida County Airport
IR de-icing reduces glycol usage by up to 90%
Does not heat the air, just the ice, snow, and frost and only heats the
aircraft’s skin by about 2 microns
Even though the IR system can remove ice without Type I glycol, the FAA
still requires Type IV anti-icing fluid be applied
Since the aircraft is warm when the Type IV fluid is applied, it becomes
more effective and reduces the chance of returning for additional de-
icing
14. Logistics Impact
IR de-icing can save around $5,000 to $10,000 per
commercial aircraft
Finding real estate on the airport and high investment cost
act as a deterrent
This year DIA is debuting a new computerized de-icing
system of five locations, currently taking 15-30 minutes
System is expected to reduce de-icing time by 3 minutes,
equals about $6 Million savings in fuel by improving accuracy
