What is the role of substrates in Low Observable aircraft structures?

The role of substrates in Low Observable aircraft structures is fundamental, as they provide foundational material for Low Observable (LO) treatments. Substrates serve as the base upon which various materials and coatings are applied to achieve radar-absorbent qualities that are essential for reducing the aircraft's radar cross-section.

In low observable technology, the effectiveness of radar-absorbing materials significantly relies on the properties of the substrate. The substrate not only supports these LO treatments but also must possess physical characteristics that complement the radar-absorbing materials, ensuring the overall performance of the aircraft is optimized.

This understanding is critical because the successful integration of LO features into aircraft structures hinges on the proper selection and application of substrates, emphasizing their importance in maintaining and enhancing the stealth capability of the aircraft.