What is the primary timing error associated with the Anti-G Straining Maneuver (AGSM)?

The primary timing error associated with the Anti-G Straining Maneuver (AGSM) is starting too late after G Force onset. The AGSM is designed to help mitigate the effects of increased G forces on the body during high-performance maneuvers. When a pilot experiences G forces, the blood is pulled away from the brain due to the high acceleration, which can lead to G-induced Loss Of Consciousness (GLOC).

If the AGSM is initiated too late, it may not provide the necessary counteraction to maintain cerebral blood flow and prevent GLOC. By the time the maneuver begins after G forces are already exerting significant pressure on the body, it may be too late to effectively stabilize blood circulation and maintain consciousness. Thus, recognizing the precise moment to initiate the maneuver is critical for its effectiveness.

In contrast, incorporating rhythmic breathing, beginning too early, or ending too quickly also can affect the efficacy of the AGSM; however, the most crucial timing factor is ensuring that the maneuver be executed immediately in response to the onset of increased G forces to provide the best support for the pilot.