What is the potential increase in +Gz tolerance from a properly performed AGSM?

The potential increase in +Gz tolerance from a properly performed Anti-Gravity Staff Maneuver (AGSM) can reach up to 4 Gs. This increase occurs due to the physiological mechanisms engaged during the AGSM, which enhances blood flow to the brain and helps prevent loss of consciousness (G-induced Loss Of Consciousness, or GLOC) under high gravitational forces.

When pilots perform the AGSM, they engage in a series of muscle contractions, specifically tightening their leg, abdominal, and chest muscles. The maneuver aims to reduce the pooling of blood in the lower extremities, which is a common response during +Gz exposure, where gravitational forces push blood away from the brain. By maintaining blood flow to the brain and preserving consciousness, pilots can better withstand increased G-forces.

The effectiveness of this technique has been validated through both training and experience, showing significant improvements in G-tolerance, especially in high-performance flight conditions. Understanding the role of AGSM in mitigating G-induced effects is crucial for pilots to maximize their performance and safety in high-G environments.