6.0 g!

[joseff]

Is the peak lateral load recorded by Jenson Button during practice at Silverstone.

[Monstrobolaxa]

Can't remember the number but in 1992 (or 91) Nigel Mansell reached a record breaking number of G's at the Eau Rouge corner at SPA. It was a very high number and alot of people thought it was impossible cause the number williams alleged was a value that would cause Mansell to have become unconsious....but Williams proved they were telling the truth with the telemetry read-outs. If I'm not mistaken it was slightly over 7....I'll try to confirm the number...I read it in the year book...

[StiK]

A person can endure more than 100Gs but only for a brief time, like 10ms or less. So it all depends on the time you have to endure the Gs.

[Monstrobolaxa]

Yup but when we mention the numbers here it's because they withstood the g's for a long time.

In 1999 when Schummy had his accident he suffered around 140 G's for 5 ms.

In 2000 when Maurcio Gugelmin had an accident on an oval he suffered over 200 G's for 2 ms....and didn't black out.

if you look at the Fia f1 tech regs in the crash test regs you'll wee the limits of G's and the max time, that they can be mesured (in the test condtions) for the car to pass the crash test.

[CFDruss]

are you sure its 100Gs....sounds way excessive to me. The amount of G's a human can handle is no where near that amount, and "pulling" 100 G's would kill you intantly.
NASA has already spent lots of time and money doing this for humans. Fighter pilots can take up to 9 G's, and our upper limit (for brief periods) is somewhere around 12 G's. You experience 3+ G's on a good roller coaster, and most of us will start to blackout around 7+ Gs

[Monstrobolaxa]

the maximum deceleration does not exceed 60g for more than a cumulative 3ms, this being
measured only in the direction of impact

FIa tech regs on rear and front impact.

the front impact is at 14 m/s (50,4 km/h)
the rear impact is at 12 m/s (43,2 km/h)

It can reach a maximum of these values at these low speed...imagine at high speed....Schummy's impact was at 185 km/h if I'm not mistaken (at Silverstone 1999).....(there was an article in the Autosport mag the week after the accident about it)

About the NASA tests those tests when the mention a brief time they mean one or 2 tenths of a second what we're talking about here is 100 times smaller then that (ms)....

Princess Diana's accident reached between 70 and 100 G's....but it was a road car and they don't have very good seat belts, (they make the torso rotate on impact) and Diana was concious on impact.

[CFDruss]

http://www.unk.edu/acad/biology/hoback/ ... lingG.html

[Monstrobolaxa]

Another thing I just remembered that I forgot to post....on a head on impact in a F1 the peak of G's is reach when the nose cone is completly crushed and has no more absorving capability...so this means that the front of the monocoque will absorve the remaining energy.

Here is another Mauricio Gugelmin accident:

http://www.speedcenter.com/news01/sc_n0428_01.html

nose first - at 66.2 G's and ricocheted down the back straight. Six seconds after his initial impact, Gugelmin hit the outside wall for the first time - this time with the rear of his car and a force of 113.1 G's.

the first impact measured 66,2 the second 113.1.....if he had hit the wall the first time in the way he hit the second time...he would have reached alot more.

[Monstrobolaxa]

just found this:

NEW YORK (AP) -- The number even made Mauricio Gugelmin gulp. The CART driver's engineer had just informed him the impact from his crash at Chicago Motor Speedway had produced 123 G's in 0.03 seconds.

this was for 3 hundreds of a second...the numbers me and Stik are mentioning are thousands of seconds...it's for a very very small time!

[Monstrobolaxa]

Ok everyone me and russ just discussed on MSN....

The conclusion of our discussion were:

We're talking of the same thing but from diferent views....Russ is talking about a (more or less) constant aceleration that is applied on the human for a relatively long time (1 or 2 seconds).

And I'm talking about a huge amout of aceleration that is applied for a very very small time 1 thousands of a second)...the peak of this aceleration is very high and so fast that it might not be enough time to influence the persons body or ever injure the person. And even reaching a very high peak the average aceleration during the crash will not be very high it will be around 10G's.

[pompelmo]

"pulling" 100 G's would kill you intantly.

I't possibile!
But for a veryery brief time!!

[j4kwan]

F1 drivers should wear G-suits with ever increasing speed and G's these cars can do. Modify current fighter pilot suits to meet F1 needs. That'll be awesome...how advantageous will that be if your driver isn't as physically strained? Reflexes shouldn't deteriorate. Mental judgement should be sharp.

[Monstrobolaxa]

They already have done it...before banning ground efects a few teams developed a g-suit for their drivers...if not mistaken Lotus was one of them....but then ground efects were banned....and the project went down the drain.

[walter]

actually human beings can withstand incredible amounts of G's without death(for a split second that is) drivers have smacked into walls and have
lived to talk about it, experiencing as much as 180 g's. Im not saying it doesnt damage you, In some cases the retina actually dissattaches from the back of the eyelid, the lungs fill with fluid, and concussions are inevitable.

Furthermore about the G-suits, It really doesnt matter like it does in jet fighters because the force is not vertical in Formula one cars, thus the blood doesnt all rush to your legs, just from left to right during long bends. and braking and accelerating are insignificant in time to require a G-suit to counteract the high forces.

[walter]

actually human beings can withstand incredible amounts of G's without death(for a split second that is) drivers have smacked into walls and have
lived to talk about it, experiencing as much as 180 g's. Im not saying it doesnt damage you, In some cases the retina actually dissattaches from the back of the eyelid, the lungs fill with fluid, and concussions are inevitable.

Furthermore about the G-suits, It really doesnt matter like it does in jet fighters because the force is not vertical in Formula one cars, thus the blood doesnt all rush to your legs, just from left to right during long bends. and braking and accelerating are insignificant in time to require a G-suit to counteract the high forces.