BMW M5 Forum

Post Reply
 
Thread Tools Search this Thread
      03-05-2017, 06:04 PM   #23
FD3S
Private First Class
70
Rep
188
Posts

Drives: BMW Z4M
Join Date: Oct 2016
Location: Dreamland

iTrader: (0)

The video is terrifying but reminds me what separates life from death are some seconds. What was truly sad for me, is that the local media and the social media cannibalised the family of the driver because he was one of the most wealthy guys in here. Stupidity at it is best moments!

Many days now that I have seen this thread I was wondering if it makes sense to ask some questions but I am almost sure I knew the answer. But after the post of AntDX316 I said to give it a try.

What you can do in a similar situation? Lets say that you are with a high speed an a tire blows. Is there any change to survive?
Makes any difference if you have the electronics on or off?
What happens in case a tire blows and is in the front axle?
Or the whole thing is doomed once it happens?
Appreciate 0
      03-05-2017, 06:25 PM   #24
lemetier
Plenipotentiary
lemetier's Avatar
2616
Rep
3,046
Posts

Drives: Yes
Join Date: Jul 2010
Location: Location

iTrader: (0)

Quote:
Originally Posted by FD3S View Post
The video is terrifying but reminds me what separates life from death are some seconds. What was truly sad for me, is that the local media and the social media cannibalised the family of the driver because he was one of the most wealthy guys in here. Stupidity at it is best moments!

Many days now that I have seen this thread I was wondering if it makes sense to ask some questions but I am almost sure I knew the answer. But after the post of AntDX316 I said to give it a try.

What you can do in a similar situation? Lets say that you are with a high speed an a tire blows. Is there any change to survive?
Makes any difference if you have the electronics on or off?
What happens in case a tire blows and is in the front axle?
Or the whole thing is doomed once it happens?
No recovery was possible in this accident sequence. Both the Vehicle Systems and the driver initiated appropriate control inputs, but the car suffered too much damage at a speed which guaranteed a fatal end.

A "normal" rear tire failure in a 911 at 200mph is startling but easily controlled as shown in the vid. This accident did not have a normal failure mode unfortunately.


Last edited by lemetier; 03-05-2017 at 06:33 PM..
Appreciate 0
      03-05-2017, 06:59 PM   #25
FD3S
Private First Class
70
Rep
188
Posts

Drives: BMW Z4M
Join Date: Oct 2016
Location: Dreamland

iTrader: (0)

Quote:
Originally Posted by lemetier View Post
No recovery was possible in this accident sequence. Both the Vehicle Systems and the driver initiated appropriate control inputs, but the car suffered too much damage at a speed which guaranteed a fatal end.

A "normal" rear tire failure in a 911 at 200mph is startling but easily controlled as shown in the vid. This accident did not have a normal failure mode unfortunately.

Lemetier what caused this severe damage? What makes the case of the GT2 so different? Could be the rainy weather?
Appreciate 0
      03-05-2017, 07:15 PM   #26
Dackelone
European Editor
Dackelone's Avatar
Germany
10820
Rep
22,992
Posts

Drives: N54 e82
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Originally Posted by Blacktan View Post
Latest details ,

Driver was 24 years old
Mud & Snow Tyres on car with DOT 4806 production
87Y speed indication

Driving on ten year old tires. Yikes!

Any tire that is older than four or five year's should be tossed. I guess there is a reason why our TUV is so stringent over here in the Land of high speed Autobahns.
Appreciate 0
      03-05-2017, 07:25 PM   #27
FD3S
Private First Class
70
Rep
188
Posts

Drives: BMW Z4M
Join Date: Oct 2016
Location: Dreamland

iTrader: (0)

Quote:
Originally Posted by Dackelone View Post
Driving on ten year old tires. Yikes!

Any tire that is older than four or five year's should be tossed. I guess there is a reason why our TUV is so stringent over here in the Land of high speed Autobahns.
My personal thoughts about this issue is that the car was dad's car and he was not using it often so he never looked about the tires.

Second case those guys have employees who run after their cars to maintain them. They usually use to put used parts and invoice them for new to pocket the difference.
Appreciate 0
      03-05-2017, 08:58 PM   #28
lemetier
Plenipotentiary
lemetier's Avatar
2616
Rep
3,046
Posts

Drives: Yes
Join Date: Jul 2010
Location: Location

iTrader: (0)

Quote:
Originally Posted by FD3S View Post
Lemetier what caused this severe damage? What makes the case of the GT2 so different? Could be the rainy weather?
Improper Specification tires in unserviceable condition. ETRTO has specific failure mode requirements and this tire failed in the opposite and most dangerous way. The load rating was 49% of the minimum needed at 130km/h. The failure occurred at over 300km/h. The interior side wall was compressed against the wheel flange causing a full circumference fracture. Because this camber compression was in the opposite direction required, it pulled the fractured carcass towards the centerline at an angle. It then impacted and became snared on the thrust control arm causing a severe change in toe angle. The carcass then twisted inside out and exited the rear. This produced a large hole in the bodywork open to the direction of the spin, which caused aerodynamic lift. This all occurred in under 0.5 seconds. 0.4seconds later, the car was entering the rest area with final impact in 0.9 seconds from there. The engine continued an additional 451m.

The rain did have an effect, but this was going to be fatal irregardless.

The GT2 on the other hand hit debris causing a puncture and deformed as designed, allowing for reasonable directional stability to be maintained.

Quote:
Originally Posted by Dackelone View Post
Driving on ten year old tires. Yikes!

Any tire that is older than four or five year's should be tossed. I guess there is a reason why our TUV is so stringent over here in the Land of high speed Autobahns.
There are going to be some inquiries as to why a Porsche purchased and serviced at Zentrum Bielefeld was involved in a fatal accident in Greece made worse by unserviceable and incompatible USED US DOT Snow tires being installed on the car.
Appreciate 1
Igor_M52340.00
      03-05-2017, 11:21 PM   #29
Umi|all|day
Second Lieutenant
Umi|all|day's Avatar
74
Rep
256
Posts

Drives: 2010 SS M3 E92
Join Date: Mar 2016
Location: USA

iTrader: (0)



The rain played a huge role, this GTR blew its front passenger tire at 200mph & still came to a safe stop. He didn't panick at all either, basically let the car slow down its self without getting on the breaks. Blowing a tire on wet roads at that speed is bound to be fatal.. if you can't get the car's force back in control those first few seconds it's a goner.
Appreciate 0
      03-06-2017, 02:40 AM   #30
FD3S
Private First Class
70
Rep
188
Posts

Drives: BMW Z4M
Join Date: Oct 2016
Location: Dreamland

iTrader: (0)

Quote:
Originally Posted by lemetier View Post
Improper Specification tires in unserviceable condition. ETRTO has specific failure mode requirements and this tire failed in the opposite and most dangerous way. The load rating was 49% of the minimum needed at 130km/h. The failure occurred at over 300km/h. The interior side wall was compressed against the wheel flange causing a full circumference fracture. Because this camber compression was in the opposite direction required, it pulled the fractured carcass towards the centerline at an angle. It then impacted and became snared on the thrust control arm causing a severe change in toe angle. The carcass then twisted inside out and exited the rear. This produced a large hole in the bodywork open to the direction of the spin, which caused aerodynamic lift. This all occurred in under 0.5 seconds. 0.4seconds later, the car was entering the rest area with final impact in 0.9 seconds from there. The engine continued an additional 451m.

The rain did have an effect, but this was going to be fatal irregardless.

The GT2 on the other hand hit debris causing a puncture and deformed as designed, allowing for reasonable directional stability to be maintained.



There are going to be some inquiries as to why a Porsche purchased and serviced at Zentrum Bielefeld was involved in a fatal accident in Greece made worse by unserviceable and incompatible USED US DOT Snow tires being installed on the car.
Very detailed answer. Thank you.

I wonder how do you know all those things. I hope he was not relative or friend. In any case rip for all of them.

On the media there was also an "expert" that he was saying in this accident if the tire blew 2 meters before or 0.5 before it would never have entered the parking. Makes you wonder...

Last edited by FD3S; 03-06-2017 at 08:47 AM..
Appreciate 1
Dackelone10820.00
      03-06-2017, 03:24 AM   #31
lemetier
Plenipotentiary
lemetier's Avatar
2616
Rep
3,046
Posts

Drives: Yes
Join Date: Jul 2010
Location: Location

iTrader: (0)

Quote:
Originally Posted by FD3S View Post
Quote:
Originally Posted by lemetier View Post
Improper Specification tires in unserviceable condition. ETRTO has specific failure mode requirements and this tire failed in the opposite and most dangerous way. The load rating was 49% of the minimum needed at 130km/h. The failure occurred at over 300km/h. The interior side wall was compressed against the wheel flange causing a full circumference fracture. Because this camber compression was in the opposite direction required, it pulled the fractured carcass towards the centerline at an angle. It then impacted and became snared on the thrust control arm causing a severe change in toe angle. The carcass then twisted inside out and exited the rear. This produced a large hole in the bodywork open to the direction of the spin, which caused aerodynamic lift. This all occurred in under 0.5 seconds. 0.4seconds later, the car was entering the rest area with final impact in 0.9 seconds from there. The engine continued an additional 451m.

The rain did have an effect, but this was going to be fatal irregardless.

The GT2 on the other hand hit debris causing a puncture and deformed as designed, allowing for reasonable directional stability to be maintained.



There are going to be some inquiries as to why a Porsche purchased and serviced at Zentrum Bielefeld was involved in a fatal accident in Greece made worse by unserviceable and incompatible USED US DOT Snow tires being installed on the car.
Very detailed answer. Thank you.

I wonder how do you know all those things. I hope he was not relative or friend. In any case rip for all of them.

On the media there was also an "expert" that he was saying that this accident if the tire blew 2 meters before or 0.5 before it would never have entered the parking. Makes you wonder...
He was a friend (lived in Miami and was in Greece for spring break when this occurred). I'm also an accredited expert for wheels/tires and human behavior during high performance driving. I wanted to know more for professional reasons as well.

The secondary EDR attached to the roll-over protection system survived.

There's numerous "if only" that may have prevented a family from losing a mother and child. They likely were unaware and thankfully died instantly without suffering.

George and the unbelted passenger never stood a chance. Once the tire went, recovery was impossible, and the impact location would mean their death..
Attached Images
 
Appreciate 3
FD3S69.50
Igor_M52340.00
Dackelone10820.00
      03-06-2017, 09:08 AM   #32
FD3S
Private First Class
70
Rep
188
Posts

Drives: BMW Z4M
Join Date: Oct 2016
Location: Dreamland

iTrader: (0)

My condolences Lemetier.
Appreciate 0
      03-07-2017, 04:14 AM   #33
Igor_M5
Igor_M5's Avatar
United_States
2340
Rep
1,932
Posts

Drives: Many, BMW.
Join Date: Aug 2007
Location: New York City

iTrader: (10)

Garage List
Quote:
Originally Posted by lemetier View Post
He was a friend (lived in Miami and was in Greece for spring break when this occurred). I'm also an accredited expert for wheels/tires and human behavior during high performance driving. I wanted to know more for professional reasons as well.

The secondary EDR attached to the roll-over protection system survived.

There's numerous "if only" that may have prevented a family from losing a mother and child. They likely were unaware and thankfully died instantly without suffering.

George and the unbelted passenger never stood a chance. Once the tire went, recovery was impossible, and the impact location would mean their death..
So sorry for your loss man.

At the moment, I'm not sure what I'm more floored by, the wrong time, wrong place freak accident, or the mind blowing knowledge your extremely interesting profession allows you to possess. All aside the unfortunate fact that the two coincided with the loss of your friend. WOW.
Appreciate 0
      03-07-2017, 07:38 PM   #34
AntDX316
Private First Class
AntDX316's Avatar
United_States
32
Rep
150
Posts

Drives: 2013 750xi ///M Performance
Join Date: Mar 2014
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by lemetier View Post
Your posts have reached a level of ignorant arrogance and disillusioned nature, it's amazing you are actually allowed in society.
I'm sending a warning to everyone and ways to prevent such disaster because Hell is real and he can't come back to tell you I am right about what I said and all the other people who messed up due to not doing what I said. I'm just trying to prevent people from going there though the lack of doing more when you have method. I don't opt-in to health insurance because the system is kind of broken. They don't teach how to address deficiencies but instead give solutions to remedy the symptoms but turning signs off. Also, it's like working out where you don't go hard enough w/ the weights then when sheer brute force impact hits your joints break but would have been strengthened years before had you did the correct heavy workouts and nutrient implementation. You say I'm ignorant arrogance and disillusioned nature but I've looked up and tested/proven my beliefs time and time again. Had your friend met someone like me before then his accident would have been averted.

Last edited by AntDX316; 03-07-2017 at 07:43 PM..
Appreciate 0
      03-07-2017, 08:00 PM   #35
JamesGames
Major
JamesGames's Avatar
United_States
1335
Rep
1,481
Posts

Drives: E60 550i|F82 M4|F48 X1|VA STi
Join Date: Apr 2012
Location: SOCAL

iTrader: (0)

Quote:
Originally Posted by AntDX316 View Post
No matter how skillful you are always leave some stability control on in real-life.

Always check tire pressure, brush up on driver skill w/ the vehicle to understand limits every month if you are wealthy. Keep your vehicle maintained. Of course they were burned beyond recognition for the ability to test for drugs/alch in the system. I drift very good in the snow but one time I was somewhat drunk and I messed up a correction. There was no telephone pole where I went up on the grass hill. I realized when drunk, your senses can be warped and a sense you easily have when "normal" is stretched. Stretched as in you think you got it but you don't such as a quick reflex to recenter the wheel but instead the angle of the steering is off a bit causing an unwanted momentum shift no matter how many times practiced. The finessing just may not exist when you need it the most. If you want to find out and you have a track and vehicle to work w/ in a controlled environment try doing some "maneuvers" both sober and intoxicated and compare your performance results. Like what happened in this video, I've seen NDE Hell videos of people telling their experience and if the driver is trapped in that car for all eternity they would have wished they met someone like me and taken what I said seriously given they were wealthy enough to do everything I said. As for the poor people who cannot afford... shouldn't even be racing in the first place unless you religiously practice on simulator settings in Forza and GT w/ a good force feedback wheel pedal set.

Quote:
Originally Posted by AntDX316 View Post
I'm sending a warning to everyone and ways to prevent such disaster because Hell is real and he can't come back to tell you I am right about what I said and all the other people who messed up due to not doing what I said. I'm just trying to prevent people from going there though the lack of doing more when you have method. I don't opt-in to health insurance because the system is kind of broken. They don't teach how to address deficiencies but instead give solutions to remedy the symptoms but turning signs off. Also, it's like working out where you don't go hard enough w/ the weights then when sheer brute force impact hits your joints break but would have been strengthened years before had you did the correct heavy workouts and nutrient implementation. You say I'm ignorant arrogance and disillusioned nature but I've looked up and tested/proven my beliefs time and time again. Had your friend met someone like me before then his accident would have been averted.
..........

Go home you're drunk.
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:12 PM.




m5:
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST