Nanotubes keep UAVs warm

U.S. Army paratroopers assigned to the 425th Brigade Special Troops Battalion, 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, conduct a final inspection of an unmanned aircraft system, or UAS, before its launch from Forward Operating Base Sparta on Joint Base Elmendorf-Richardson on Friday, Nov. 15. Before the launch, UAS had not been flown over JBER since 2008. (Courtesy Photo by Chief Warrant Officer 3 Nicholas Jones / Released)

As the U.S., Russia, Canada and other nations devote preparations to Arctic operations, Battelle has designed a coating that keeps UAVs from icing up in cold weather.

Battelle’s HeatCoat “utilizes a carbon nanotube coating that can be sprayed onto an aircraft surface much like paint, creating a heated area when power is applied. An intelligent controller monitors the heater performance and applies only the power levels required for the flight conditions,” said a company news release. “This method is lighter than traditional ice protection systems, can operate on less power, has no moving parts, and can be retrofitted to existing assets.”

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The coating has been tested in a laboratory chamber with temperatures as low as – 22 degrees Fahrenheit and air speeds of up to 182 knots.