What is a common method to visualize RCS reduction in aircraft?

Reflective coating is a widely recognized method for visualizing radar cross-section (RCS) reduction in aircraft. This technique involves applying special materials that can absorb or scatter radar waves, effectively making the aircraft less detectable to radar systems. These coatings help to minimize the echoes returned to a radar source, thus reducing the aircraft's visibility.

In this context, the use of reflective coatings is critical for stealth technologies, as they are specifically designed to work in concert with the geometric shapes and materials of the aircraft. The effectiveness of these coatings can be visually examined or evaluated through various tests that assess how radar waves interact with the surface of the aircraft.

On the other hand, symmetrical design, while it can influence radar signature, is not specifically a visualization method. Artistic painting does not pertain to RCS reduction, as it focuses more on aesthetics than radar capabilities. Weight distribution may affect the aircraft's performance and stability but does not contribute to RCS visualization or reduction. Therefore, the use of reflective coating stands out as a direct and recognized method to achieve and visualize RCS reduction in aircraft design and maintenance.