When should a G-awareness exercise be accomplished?

The correct choice is when the G-awareness exercise is accomplished on sorties that include maneuvers that require or may result in 3 or more Gs. This is essential as G-awareness exercises prepare pilots for the physiological effects of increased G-forces, which can lead to G-induced Loss Of Consciousness (GLOC) if not properly managed. By engaging in this exercise before executing high-G maneuvers, pilots can become familiar with the sensations and responses of their bodies under these conditions, thereby enhancing their performance and safety during such high-stress maneuvers.

The focus on G-forces above 3 Gs is crucial because that is the threshold where pilots are more likely to experience significant physical effects, making it imperative to be well-prepared. Therefore, integrating G-awareness exercises into training regimens that involve high-G maneuvers is a strategic step to ensure pilots understand and can mitigate the risks associated with such operations.