What does the term 'masking' refer to in Terrain Flight Operations?

The term 'masking' in Terrain Flight Operations specifically refers to flying below the height of surrounding terrain to reduce visibility to potential threats. This technique helps to conceal the aircraft from enemy detection or surveillance by utilizing the natural landscape as cover. By flying low, pilots can take advantage of hills, valleys, and other terrain features, effectively hiding their presence and reducing the risk of being targeted. This operational tactic is crucial in military contexts where stealth and surprise are key advantages against adversaries. Masking is a fundamental element of terrain flight strategies designed to enhance safety and operational effectiveness in hostile environments.