NASA Looks to 3D Printing to Improve Aircraft Icing Research Tools – NASA https://www.nasa.gov/aeronautics/nasa-looks-to-3d-printing-to-improve-aircraft-icing-research-tools/
NASA’s aeronautical innovators are using the most modern research tools available, including 3D printing, to generate new data that will help airplane makers
Historically, icing research has relied on generating real ice in a specially equipped wind