Image to right: The hybrid anti-icing system tested at NASA icing research tunnel by Cox and Raytheon engineers.

Today, progress is often measured in making technologies smaller, yet just as effective. During the past two decades, aircraft engine core sizes have shrunk, also reducing the amount of power available to operate systems protecting against ice build-up.

In response to the new low power paradigm, NASA researchers developed the Hybrid Ice Protection System. Operating at 25 percent of previous systems' power requirements, the Hybrid system is the first to incorporate an electro-mechanical deicer as compared to the earlier electro-thermal. The ice protection system uses both thermal anti-icing and mechanical deicing to keep airfoils—wings and other lifting surfaces—clear of ice. The anti-icing part of the system heats the leading edge of the airfoil, preventing any ice formation. Past the heated leading edge, the mechanical deicing component periodically deflects the wing skin to break and remove any ice.

When the Hybrid Ice Protection System flew aboard a Raytheon Premier I aircraft, it became the first FAA-certified new form of ice protection in 40 years.

Hybrid Ice Protection System Team
NASA Glenn Research Center, NASA Langley Research Center, Raytheon Aircraft