One of the most challenging experiences for pilots during any flight is enduring g-forces. But what exactly is g-force, why do pilots sometimes black out, and what happens when they do?
Fighter jet pilots do more than just control a metal bird and fire weapons. They must also withstand incredible pressures that could lead to complete blackouts and potentially disastrous outcomes.
So, how do pilots train to withstand these forces, and what challenges do they face during the process?
What is G-Force? G-force, scientifically, is a measure of acceleration relative to Earth’s gravity. 1 g is the force of Earth’s gravity that pulls us downwards. However, during acceleration or deceleration, g-force can increase, resulting in additional weight and pressure on the body. You might have experienced more than 1 g when riding a roller coaster or during a rapid takeoff in an airplane.
Why Do Pilots Black Out? Jet pilots encounter intense g-forces during sudden maneuvers, which can cause blood to shift from the brain to other organs, significantly reducing the oxygen supply to the brain. This leads to a short-term loss of consciousness, commonly known as “G-LOC” (G-induced Loss of Consciousness). During G-LOC, the pilot’s vision narrows, colors start to fade, and they’re on the verge of blacking out.
Staying Safe with Modern Technology and Training Modern aircraft are equipped with systems that help ensure pilot safety during a blackout. Automatic Ground Collision Avoidance Systems (Auto-GCAS) can automatically raise the plane in case of a potential crash if the pilot is unconscious, preventing disaster.
Additionally, pilots undergo rigorous training in flight simulators to prepare for high-g maneuvers. They use advanced equipment like the “Kraken,” a 90,000 kg simulation machine, to experience g-forces and develop the resilience needed for real-world application. With proper training, pilots can withstand up to 8 times Earth’s gravitational force.
This intense training and technology highlight the incredible endurance and skill required to be a fighter pilot. Despite the extreme challenges, pilots are able to safely navigate and respond effectively in high-pressure situations, ensuring safety and mission success.
