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The Science and Stealth Behind Black Fighter Jet Radomes

The black nose cones, or radomes, on many US fighter jets serve a critical function beyond simple aesthetics. A radome's primary job is to protect the sensitive radar antenna while remaining transparent to its radio waves. The black color is often the result of specific materials or coatings, such as neoprene or iron ferrite-based paints. These coatings are essential for protecting the radome from erosion at supersonic speeds. Furthermore, these materials help to reduce the aircraft's radar cross-section, absorbing enemy radar waves to enhance stealth capabilities.

Official Source: https://simpleflying.com/why-us-fighter-jets-have-black-radomes/