G-Force, Jerk, and Passing Out In A Centrifuge

  • Published on Apr 16, 2018
  • Thanks to the Starrship team for arranging this! I'm also over on their channel, flying with the Blades: tvclip.biz/video/iwy3-1gorxk/video.html • At the Royal Air Force training centrifuge in Farnbrough, pilots learn how to avoid G-LOC: g-induced loss of consciousness. Let's talk about g-force, about jerk, and about how to keep circulation flowing to your brain.
    * Isn't 3.6g a really low g-tolerance? *
    Yep. Turns out I would not qualify to be a fighter pilot. The average range for g-tolerance is 4-6; no-one was expecting me to pass out. The centrifuge team do not deliberately try to G-LOC people! To be fair, though, I'd done a few earlier runs with only minor effects.
    * What g was the RAF person at the start pulling? *
    That's Marcus, from the Starrship team, and he was successfully pulling 6.5g with the help of g-trousers: they plug into a compressed air source in the plane (and in the centrifuge) and act as a lower-body tourniquet to keep the blood up top. They are very effective.
    * Why did you shake and shudder when regaining consciousness? *
    Those are called "myoclonic convulsions", which is a fancy medical term for "muscle jerks", and they're a common side effect of recovering from G-LOC.
    * What did it feel like? *
    I'll answer this in more detail in a video over on the Matt and Tom channel soon, but in short: I don't remember it. I was doing the breathing maneuver, then everything was wobbly, then we were stopped!
    * Is this a sponsored video? *
    No: the RAF and Starrship had no editorial control over this, and no money changed hands. Obviously, though, they gave me a spin in the centrifuge, and I'm collaborating with them over on their channel too!

    The RAF Centre of Aviation Medicine, the Starrship team, and the folks at Qinetiq.
    Instagram: instagram.com/starrshiphope/
    Facebook: facebook.com/starrshiphope/
    Twitter: twitter.com/starrshiphope

    I'm at tomscott.com
    on Twitter at twitter.com/tomscott
    on Facebook at facebook.com/tomscott
    and on Snapchat and Instagram as tomscottgo

Comments • 2 000

  • Tom Scott
    Tom Scott  10 months ago +1820

    If you have questions (what did it feel like? why did you convulse? isn't 3.6g a really low tolerance?) pull down the description, I've answered a few there! And if you see someone ask a question that's in the description, please point them there.

    • 109
      109 20 days ago

      +Jess Chan Sorry for a late reply, but it depends. You need athletic body to have the best tolerance. For example, the best tolerance sustained 9G fighter pilots are people with no neck (basically gym rats) + hardcore deadlifters (legs strength plays a major role). Also, high blood pressure helps. Only advantage I can see for women is their smaller height and weight. Their disadvantage is weaker muscles and muscles play a huge role. So I think a smaller height and thus smaller weight gym rat that is male is probably superior because of superior muscle strength. Remember you need strong neck (if you don't have a neck like it is with hardcore gym rats, then the better it is), super strong muscles from your abs (good core is good for your spine and you are going to need it) to all the way down. So never skip the leg day if you want to have a good tolerance. Hope this helps.

    • L T Mundy
      L T Mundy Month ago

      +A Totally Ordinary Aubergine: No. But you might suffer ICP (intercranial pressure) induced cerebral trauma or menengial tears/bruising.

    • L T Mundy
      L T Mundy Month ago

      +Ben WP: Analogous to a set of snug chaps married to multiple blood pressure cuffs. Securely fitted around the legs and lower abdomen of aviators, and containg pneumatic bladders between durable nylon/nomex shells. When the pilot is subject to downward high g forces, the suit inflates, thereby limiting the amount of blood that will naturally be drawn towards the lower extremities. Medspeak: Orthostatic hypotension: Liteheaded sensation after standing quickly from a prolonged sitting position.

    • Melo DEC
      Melo DEC 2 months ago

      Tom Scott I use to work at a space center, and we had a machine that would do 3g and held around 20 people. Kids ages from 11-15 would get on it many times back to back.

    • Jess Chan
      Jess Chan 2 months ago

      Is it true that females tend to have a higher G tolerance than males? Even if it is, there are still more male than female fighter pilots.

  • God King GG
    God King GG 7 hours ago

    I remembered the guy who goes for 9G and didnt passed out damn that would be a very hard training i suppose

  • Peter Akers
    Peter Akers Day ago

    £10,000 says the US use this for torture

  • Sheree Dogge
    Sheree Dogge 8 days ago

    I lost my sight for 15second in a roller coaster in a loop

  • Emre
    Emre 12 days ago

    How can I tryyy

  • Some Dude
    Some Dude 14 days ago

    0:20 does that guy in the middle not get dizzy. How does his computer stay standing ?

  • GKPB Trooper
    GKPB Trooper 15 days ago

    Who's here after listening to Glass Animals - Agnes?

    THE TRUTH12 15 days ago

    this is nothing,the earth spins at 1000 mph and gravity is the seat belt and i don't see anyone passing out do you ?..ps the earth is flat and motionless

  • Rozkladd
    Rozkladd 19 days ago


  • Lando4commando
    Lando4commando 20 days ago +1

    *b l i m e y*

  • Melissa Lyons
    Melissa Lyons 23 days ago

    Am i the only one that knows about this machine Because of that one Scooby doo movie .....

    Yeah? I thought so .....

  • shyguy
    shyguy 28 days ago +1

    Oh nothing I was just jerking off in the centrifuge

  • impossibro tv
    impossibro tv Month ago

    Came here from captain D. Way to go average nerd!

  • score fresh
    score fresh Month ago

    in disneyland orlando, epcot in misson space is the orange misson. it simulates g-force during launch. it felt like 2 g to be a guess.

  • Finders Bleepers
    Finders Bleepers Month ago

    I had the windows XP shut down theme in my head for some reason.

  • K0nst4nt1n96
    K0nst4nt1n96 Month ago

    Looked like your brain did a post on self test like a computer booting up.

  • kloosmitsoos xD
    kloosmitsoos xD Month ago

    I know how 5g feels hahahah i thought my legs are gonna explode

  • kloosmitsoos xD
    kloosmitsoos xD Month ago

    I mean 5 g are eazy

  • 晋三安倍
    晋三安倍 Month ago


  • Earthworm Jim
    Earthworm Jim Month ago +1

    I Came Here For Jerk Chicken, Yet I Found Nothing....

  • SCP 173 alternate account

    I’m getting dizzy

  • Snakey Mations
    Snakey Mations Month ago

    I release 25 gs when I have bowel movements

  • Snakey Mations
    Snakey Mations Month ago

    We didn’t evolve at all.


  • Daisy is a gryphon
    Daisy is a gryphon Month ago

    I have a G tolerance of 10.2.

  • TheJwwinter
    TheJwwinter Month ago

    Would an ant or a cat on that seat feel the Gs ?

  • Brandon sampybomp
    Brandon sampybomp Month ago

    I must try somehow

  • Chrnan6710
    Chrnan6710 Month ago +2

    3:34 reminds me of trying to start a car in the cold

  • TheCookieJar
    TheCookieJar Month ago


  • HoldShiftt2Run
    HoldShiftt2Run Month ago

    I would hate to sit in the middle as well.

  • MiltonRK
    MiltonRK Month ago

    3:32 oof

  • Sid Filips
    Sid Filips Month ago

    Hey i have been in a rolling coaster last night and i felt the g force

  • Peter Houle
    Peter Houle Month ago

    upon exiting the centrifuge, you could have pulled a Solo and flipped the monitor a "space quid" and muttered "sorry about the mess".

  • Peter Houle
    Peter Houle Month ago

    the RAF uses lots of breakfast cereal terms. I've just enjoyed myself a bowl of Jerks before watching this, as a matter of joke.

  • BeGarbled
    BeGarbled Month ago


  • Arich Manas
    Arich Manas Month ago

    To be fair, acceleration is the rate of change of velocity, not speed

  • Fermuso • 27 years ago

    I thought it said "Jerking off, passing out in a centrifuge"

  • ZaidP_24
    ZaidP_24 Month ago


  • Tiago Miranda
    Tiago Miranda Month ago

    Tom went from Tom Scott to White Scott, to Red Scott, and back to Tom Scott.

  • Norlex
    Norlex Month ago +1

    Actually the highest g's that a person has ever sustained is 214G

  • Anonymous
    Anonymous Month ago

    3:20 some one make this a *GIF*

  • DragonGirl14332 AJ
    DragonGirl14332 AJ Month ago

    I can’t quite see, *ah.*

  • Lunicat Gaming
    Lunicat Gaming Month ago

    Only around 3.8g is when you passed out, I did 5 and I didn’t pass out

  • last guard
    last guard Month ago

    Even this thing looks soo dangerous and scary ı cant even imagine beeing a jet pilot god bless all pilots

  • DMNX
    DMNX Month ago

    I blackout when I get up from bed...

  • Bohg
    Bohg Month ago +1

    The thumbnail and title make its sound and look like a porno

  • nola ya heard me
    nola ya heard me Month ago


  • Sk8ternTv
    Sk8ternTv Month ago

    i whould love to try it!

  • WNCRY_Buster
    WNCRY_Buster Month ago

    Let's convert the thumbnail to anime style, and... There we go! An Aheago picture.

  • Proİkizler Oyunda
    Proİkizler Oyunda Month ago

    3.5 g and.. :) not good.

  • Jack Wahlgren (elev)

    If I did that I would get so fcking dizzy I would die

  • Tiaan Lennox
    Tiaan Lennox Month ago

    2:50 Am I the only one who thinks this is the funniest thing ever?

  • Snoozer
    Snoozer Month ago


  • Gafe León
    Gafe León Month ago +1

    Great, now I want to know how much G-tolerance I have

  • Jason B
    Jason B Month ago +1

    1:36 /4:48

  • Jmsessn
    Jmsessn Month ago

    712 peeps did not withstand the test, lel 😂

  • Bananabug 4
    Bananabug 4 Month ago

    Blimey I lost all of it there
    All nut?

  • Rex Palastanga
    Rex Palastanga Month ago

    Dose this make you feel sick?

  • AggressiveFox
    AggressiveFox Month ago

    thats was fun to watch from somebody without training to see how hard is 9g

  • Doktorek
    Doktorek Month ago

    1:27 four persons?

  • Muhammad Imran
    Muhammad Imran Month ago

    I only live in 4G LTE life, no less.

  • C_dubbz _
    C_dubbz _ Month ago +2

    3:25 when you hit a dab too hard

  • TheChazas
    TheChazas 2 months ago +1

    Passed out on quite low G's, even Formula 1 drivers experience constant from 1+ to 6+ G's for 2 hours straight.

    • TheChazas
      TheChazas 2 months ago

      It is all about corner speeds, that is where the most G comes. In a two seater Formula car some people pass out too, even a few seconds can be enough for some untrained.

    • Melo DEC
      Melo DEC 2 months ago

      TheChazas its way different spinning around in the same motion than hitting turns and accelerating brutally fast. Feels totally different

  • Joe Benz
    Joe Benz 2 months ago

    This is the face of tie fighter pilots when they realized that the death star was destroyed.

  • Kyle Gregorio
    Kyle Gregorio 2 months ago

    Im jerking tonight

  • DENIAL 101
    DENIAL 101 2 months ago

    4:00 do the chiken

  • MrDavidelliottjr
    MrDavidelliottjr 2 months ago

    They would have so much puke every where if that was me

  • Hafiz Samad
    Hafiz Samad 2 months ago

    Look like orgasm when stop..

  • Michael Černes
    Michael Černes 2 months ago +5

    I've just noticed the RAF personnel at 4:00 making fun of Tom by showing what Tom looked like while being unconscious.

  • 캡틴곽T.V
    캡틴곽T.V 2 months ago

    I endured up to 6G during 30s. ^^

  • Gimberg Preval
    Gimberg Preval 2 months ago

    -Scott 2018

  • D Z
    D Z 2 months ago

    Bet I could do that

  • stupid faggot
    stupid faggot 2 months ago +52

    _dies for a second_

    • Boris
      Boris 4 days ago

      You Sir... I like you...

  • BasicBurp
    BasicBurp 2 months ago

    How much g force can a child hold

  • Reaper
    Reaper 2 months ago

    The fact that there's a comma after "Jerk" in the title greatly bothers me.

  • Juan Ariza
    Juan Ariza 2 months ago

    Acceleration is the rate of change of VELOCITY *****

  • Yofadhli Ahmed Kahirawan

    "I lost everything there" apparently not the script.

  • Steven Hickman
    Steven Hickman 2 months ago

    The thumbnail looks like me after 16 pints of lager!

  • K L
    K L 2 months ago

    That is why if we can be able to generate gravitational distortion this will not be a problem.

  • Sai Rithvik n
    Sai Rithvik n 2 months ago

    Thumbnail is TVclip gold.

  • Danfuerth Gillis
    Danfuerth Gillis 2 months ago

    And we are lead to believe those overweight old mofos on the ISS can take 20 GS on takeoff hahaha.

  • Blackoutsolid
    Blackoutsolid 2 months ago

    3:25 raw footage of Tom nutting

  • Tom Kaisers
    Tom Kaisers 2 months ago

    what is jerk?

  • pablo hernandez
    pablo hernandez 2 months ago

    How much does a 2000 hp buggy have because my family members have one and just hit the dunes but I didn’t ride with him
    Because I don’t know G-force controll

  • Wilmer Lagesson
    Wilmer Lagesson 2 months ago

    that's the mechanic dude from tv

  • Ewa Jasinska
    Ewa Jasinska 2 months ago

    I live in farnborough :o never knew there was that thing :o

  • Brian A
    Brian A 2 months ago

    "I'm healthy I've pulled a few G's before"
    Weird flex but ok

  • oof .
    oof . 2 months ago +1

    3:39 whoaaaa that was creepy eyes

  • GamerGodYT
    GamerGodYT 3 months ago

    *_P A A A A A A A_*
    **passes out**
    2 minutes later
    *_b l i m e y !_*

  • Hank nvt
    Hank nvt 3 months ago +1

    Youre really a fart.......not only that.......the way you fainted was really ugly to look

  • ismaelito sabio
    ismaelito sabio 3 months ago +1


  • A Katsuki-Nikiforov
    A Katsuki-Nikiforov 3 months ago +1

    woah there that was freaky

  • CJB Play's
    CJB Play's 3 months ago +1

    Did you watch this video because of CaptainDisillusion?

  • Bulina PW
    Bulina PW 3 months ago +2

    Why's this in my recommendations during no nap november?

  • Kori Sterling
    Kori Sterling 3 months ago +1

    jerk............jerkoff....jerkon...jerkoff.....jerkon... :D

  • DauntingKitty
    DauntingKitty 3 months ago +2

    I think I have too much jerk

  • Liberty Pyro
    Liberty Pyro 3 months ago +9

    Tom Scott, you have officially failed no Nut November

  • Mystery 640
    Mystery 640 3 months ago +1

    Does it hurt?

  • Castlehill650
    Castlehill650 3 months ago +26

    I jerk and pass out all the time.

    • twomindz79
      twomindz79 20 days ago

      You should probably go to a doctor and get checked out . You re doing something wrong .

    • Rob M
      Rob M 2 months ago

      Castlehill650 story of my life, jerk and pass out

  • Josh B
    Josh B 3 months ago +1

    most people can handle more than 3.6g