G-LOC: When G-Forces Are Too Strong For The Body

G-LOC: When G-Forces Are Too Strong For The Body

Pilots and astronauts both train to endure increased G-forces, and can be exposed to up to 9 G's during testing. G-LOC causes someone to lose consciousness for an average of 12 seconds, and remain disoriented when they wake. They may also have brief convulsions, vivid dreams, or complete amnesia afterwards. G-LOC can be fatal for a pilot flying at low altitude.


from United States Air Force

Key Facts In This Video

  • 1

    Pilots can train to endure strong G-forces in a specialized centrifuge. (0:09)

  • 2

    Pilots can experience more than 6 G's when they fly, or six times the force of gravity on Earth. (1:02)

  • 3

    An untrained person would probably pass out if they experienced between 4 and 6 G's. (2:35)

See all



Deep Sea


Get smarter every day! Like us on Facebook.
You'll get the most interesting and engaging topics in your feed, straight from our team of experts.