300kph Stack

Discussion in 'Lounge' started by Advikaz, Nov 30, 2016.

  1. It will never happen to me. < edit, that should have been a quote.
     
    #21 Not Carl Fogarty, Dec 1, 2016
    Last edited: Dec 2, 2016
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  2. I don't think it would have altered the outcome.
     
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  3. big respect, you must be very passionate about safety.
    Has anyone else modified any road fixtures or fittings to reduce their bodily damage? :Writing:
     
  4. Haha! Well, I am a Civil Engineer.... that is basically my job! I think that was the only roads job I ever did. You would be surprised how much thought goes into a new bit of road when the designer is a biker!
     
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  5. and the nearside mirror :Watching:
     
  6. Don't mean to sound too morbid but I'd rather die very quickly in the case of a massive crash than survive with a serious brain injury, paralysis, no limbs, terrible pain etc. At 300kmph I don't think you're getting away without something truly horrible even with the best airbag top of the line gear.
     
  7. If you have full leathers and just slide down the road it shouldn't be a big issue (and a different barrier let's you slide rather than grabbing and chopping you). I have personally only been off at just over 110mph, but it wasn't that bad. Marquez came off at over 330kph and was racing the next day. I'm sure I read that the guy who got hit in this clip (so the onboard) just broke his leg? Personally, I'd rather have a broken leg than be in 4 pieces....
     
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  8. I guess it depends on the landing and separation from the bike too... if you slide with 200kg on top of you and land on your head you might be done.
     
  9. problem is, rarely do you fall off in a straight line, so most times your going into another vehicle, or off road. In either case, its broken or dismemberment, thats a nice word, dismemberment.
    :Writing:
    Dismemberment is the act of cutting, tearing, pulling, wrenching or otherwise removing the limbs of a living thing. It has been practised upon human beings as a form of capital punishment, can occur as a result of a traumatic accident, or in connection with murder, suicide, or cannibalism.

    mmmm, Dismemberment.......
     
  10. Yes, it's not the fall that hurts ...
     
  11. Yes, and the faster you go, the harder you hit, or the further you travel, increasing your chances of hitting something. But look at all the daft videos of people going off of corners and bouncing through fields without connecting with anything... you might, you might not.

    I totally get what you are saying as well camelfarmer, but I'm just saying it isn't a given it'll end in doom and gloom, so I wouldn't be making a deal of "if I come of at over 150mph I want to be dead just so it doesn't hurt too much". I'd take my chances and hopefully survive with nothing worse than a broken leg.
     
  12. At these speeds, protective gear or not, your margin for error, whether yours or others around you is at best minimal. Deceleration alone will kill you, even if the barrier or whatever you hit does not. The human anatomy is simply not designed to resist such catastrophic forces. Net result is usually fatal.
     
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  13. Road car crashes apparently vary from 28g to 70g typically. Most at 50g+ are fatal.

    At 100mpg crashes of 100g have been recorded and in car racing 200g.

    The avergage head weighs 5 to 7 kg. Do the math.

    If you hit, bump or roll... and those kinds of forces are generated not good.

    Racing at around 3g normally despite being strapped in, it feels a car has nudging you left to right through a series of corners.. sustained it feels a bit like having more than you could bench press distributed evenly, leaning on your whole side.
    I would not want to expierence 10 or 20x more even if it was for a shorter duration.

    If the data above is correct I don't see much chance of survival even though some people do.. if you are doing 186mph just having your ass dig in the dirt and a few flips is going to be real nasty.. if it's 50g.. your leg or head could feel like they weigh 250kg. It's also the organs that apparently take a pounding.

    Not my data above so maybe incorrect.





    Sent from my SM-G935F using Tapatalk
     
  14. Flatfish.....you're beginning to worry me!
     
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  15. There are so many holes in that, it is hard to know where to start. The biggest being that you can't relate g to mph, unless to are talking about hitting the same thing in the same way. You could slide down the road, or hit a tree, both giving you significantly different "g" whilst stopping. Also, it would be my guess that most road car crashes register under 28g. Who here has been in an accident? I'm guessing a few, and most were probably well under 28g.

    I'm sure plenty in here have been off of a bike at over 100mph and are still here in one piece. Unfortunately there will be a few no longer with us. It just isn't a foregone conclusion that you will hit something and die.
     
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  16. "There are so many holes in that, it is hard to know where to start. The biggest being that you can't relate g to mph"

    You seem to have misread... It states, at 100mph, 100G has been recorded < that does not imply it is in every case... that might be the highest on record, into a brick wall. Is that not obvious.

    You are talking about "what ifs" which is not the same thing by predicting the outcome before it happens there is endless possibility. Which is not the same as discussing certainty. I was talking about forces that have been recorded, if you experienced those forces (it has already happened). Speed is a factor as is mass and other variables...

    I said I would not want to experience those kinds of forces and yes it would appear you are lucky to survive if you experience high G forces if the rate of fatality is high at that level of force. That's common sense... "if the risk of fatality is high at that rate of force."

    If I did not make it clear enough I am sorry, otherwise.... This is going to get tedious and I doubt anyone wants that? This is why I have a company with legal knowledge write our policies and procedures and contracts because I'd be sure to fook it up, too many hats.


    I also said, the above is not my data. I am 100% sure there is a stat for crashes being less than those figures but we were talking about high speed crash were someone died and lost limbs, those figures are a marker of forces that can be experienced in specific situations (or not) I applogise if my post was not clear on that either.

    If you want to talk about how much the barrier might flex, if the impact is square on or not, were they deflected, what materials was the barrier made of, how thick was it, how frequently was is bracketed to the floor, how was it welded or bolted, how deep were the footings... I'd be happy to learn about it.

    I've never said I know everything and I like to learn. It is part of my job... If you want to go down the route of best case scenario or alternatives we could be here till next Christmas perhaps infinity but I must warn you, I like this kind of detail and I won't get bored.

    I never said or intended to imply every crash results in a high force but yes in a specific circumstances a high speed crash will increase the risk of such, even if it's only by the fact you travel further at a given speed so this will increase risk the potential to hit something hard (disclaimer, depending on where you are). Obviously a low speed crash into a brick wall could produce a more harmfull impact than a slide on your ass at high speed, but your body being tossed about at higher speed will also create some huge forces and complications, that you may not experience at lower speeds...

    I am an engineer by profession. I consult businesses and I have to use (basic) calcs and stats so obviously understand variables. Ambient temp and distance effects resistance, pressure and volume these things factor in all sorts of things from cubic feet per minute, to electrical calcs and even traction.

    This is why I enjoy racing and did run my own car, it encompasses everything I am interested in. Human ability, physically and mentally and engineering.

    Speed does effect G forces in a given situation a car with down force, with all variables being constant rounder a corner will pull more G if it's going faster) but it's not my field.

    I agree you can't predict the outcome of a crash I never said that who would, perhaps mystic meg or god?? not all crashes are the same.

    I would still not want to experience that level of force.

    The fact remains if you come off going fast (or slow) there is an element of luck involved and if you are unlucky enough to experience high G forces good luck with that... you might survive, you might end up with brain damage or just a bruised heart. I think everyone is aware of the TT riders come off, some live some don't.

    The fact remains the human body can't take huge forces in the wrong order or duration.

    Hans devices in car racing did not become mandatory because force and speed and likenesses of impact is a risk not worth considering.
     
    #36 Not Carl Fogarty, Dec 2, 2016
    Last edited: Dec 2, 2016
  17. Ffs, how much time do you have on your hands?

    There's a blokes head, leg and torso littered around the highway and you're disappearing up your own arse on the finer points of 1/2mvsquared ?
     
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  18. I think from the vid it looks like a tyre blew....and on a corner (which means your going to hit something somewhere at somepoint). By the way they were riding i think (and it sounds really bad) that they destined for at least the hospital and got what was coming to them....as i agreed further up - ill go fast if i can but only if the surroundings lend themselves to it and even then i dont get up to the top end of my bike....on each of them ive been up there once or twice out of curiosity but thats it....and thats been on the straight on the mountain section TT week...
     
  19. But if you do, at those speeds, you probably will.
     
  20. Its grim, yes, but its a reminder of the fragility of the human body. We are only flesh and bone. Its not uncommon for pelvis and torso to be torn apart from relatively blunt objects - lamp posts, trees and certainly Armco. It doesn't need a sharp edge to sever the spine at the pelvis, just a heavy enough blunt force. We are only held together down there by skin and ligaments. The most lethal road furniture, it seems to me are the wire hawser barriers. I remember when they were proposed here in the 90's. I was a member of MAG at the time and there was a big campaign to try and stop them. About the same time the EU were trying to force bikes to be fitted with leg protectors..

    A friend of mine witnessed someone cut in two in South Africa when the pick-up truck he was travelling in struck a man who suddenly ran into the road in front of it. The sudden impact of the bonnet striking his pelvis and the whiplash effect on his upper body was enough to pull the poor guy in two like a Christmas cracker.
    If its any consolation, its probably a lot more traumatic for the witnesses than the victim who would have been insensible or dead at the moment of impact.

    It just goes to show why race tracks have massive run-offs and gravel traps. The difference between racing on public roads and racing on track is the difference between doing a tight-rope walk above a safety net and doing one above jagged rocks. One mistake..
    Be careful out there.
     
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