ouch Why you buy that expensive helmet!

Nivola · 7 Sep 2005, 08:09 (Ref:1401086)

http://www.crash.net/uk/en/news_view...=26&nid=118272

This is amazing to say the least and he is one very very lucky man!

Neil Adams · 7 Sep 2005, 10:02 (Ref:1401174)

im amazed at the amount of damage to the helmet, having read a recent article in f1 racing on the stringent tests they have to go through, in these tests if the outer layer was penetrated after impact tests with sharp implements dropped from a great height it was a failure, i guess the rules arent the same for all series?

Russfeld · 7 Sep 2005, 10:23 (Ref:1401191)

F1 uses carbon helmets these days.

DanFlag · 7 Sep 2005, 10:59 (Ref:1401227)

Amazing

runshaw · 7 Sep 2005, 11:48 (Ref:1401267)

Thats incredible.

Kicking-back · 7 Sep 2005, 12:24 (Ref:1401307)

Surely the damage to the helmet is a good thing - shows it absorbs the impact

runshaw · 7 Sep 2005, 13:38 (Ref:1401378)

Quote:

Originally Posted by Kicking-back

Surely the damage to the helmet is a good thing - shows it absorbs the impact

Yeah it looks like it stood up very well considering a Formula Renault flew into it. Im surprised he was actually able to drive back to the pits after that.

**Tim Falce** · 7 Sep 2005, 14:09 (Ref:1401400)

Does anyone know what make it was, I need a new one soon.

Dave Brand · 7 Sep 2005, 14:13 (Ref:1401402)

Quote:

Originally Posted by Kicking-back

Surely the damage to the helmet is a good thing - shows it absorbs the impact

NO!!!! Ideally the helmet shell should show no deformation: the internal layers of the helmet should absorb the impact. That helmet did its job, but only just.

mark_l · 7 Sep 2005, 14:29 (Ref:1401408)

Was the driver wearing the HANS device as this would of restricted the movement of the head and the driver could of sustained more damage as a result.

JustinDawkins · 7 Sep 2005, 14:36 (Ref:1401415)

Quote:

Originally Posted by falcemob

Does anyone know what make it was, I need a new one soon.

Arai GP5

dasc04 · 7 Sep 2005, 15:07 (Ref:1401441)

Surely the helmet is not ment to deform like that? I wonder if the helmet has had a possible bang before and the fracture or damage had not been detected and therefore had been slightly weaker.

I remember when Karting we were once shown, in drivers briefing, a helmet that had been in an accident. On the outside it looked fine but whoever had donated it had cut it in half and stripped out the padding. The inside was all discoloured at the area of impact and was cracked but the outside looked fine!

Kicking-back · 7 Sep 2005, 15:41 (Ref:1401465)

I just think that a helmet that doesn't do that when it has the weight of a car thud on it would transfer too much shock to the driver's head.

**Tim Falce** · 7 Sep 2005, 16:01 (Ref:1401485)

Quote:

Originally Posted by Dave Brand

NO!!!! Ideally the helmet shell should show no deformation: the internal layers of the helmet should absorb the impact. That helmet did its job, but only just.

How could the internal layers absorb the impact without the outside deforming first? Too much rigidity in the helmet would transfer the forces which could result in a broken neck.
We don't know how the internal layers have deformed anyway but I would think the deformation would be progressive as the driver wasn't injured too severely.

Dave Brand · 7 Sep 2005, 16:07 (Ref:1401491)

Quote:

Originally Posted by falcemob

How could the internal layers absorb the impact without the outside deforming first? Too much rigidity in the helmet would transfer the forces which could result in a broken neck.

If the shell deforms the forces on the head are localised. By not deforming, the shell ensures that the force is applied to the head over as large an area as possible, thus reducing the likelihood of skull fracture, etc.

Kicking-back · 7 Sep 2005, 16:34 (Ref:1401517)

That's true in a normal crash impact - but when you have a car land on your head, it's inevitably going to deform!

**Tim Falce** · 7 Sep 2005, 16:47 (Ref:1401532)

Quote:

Originally Posted by Dave Brand

If the shell deforms the forces on the head are localised. By not deforming, the shell ensures that the force is applied to the head over as large an area as possible, thus reducing the likelihood of skull fracture, etc.

There is only so much force that an object will absorb before it deforms or breaks. I would rather have the helmet deform like that rather than it totally shatter leaving my head exposed. Like I said, we can't see the inside of the helmet so don't know how the load was spread (or not) inside.
Taking it all a step further, Why do cars now have crumple zones to absorb shock rather than the old designs of solid boxes that remained intact and caused more injury to the occupants inside?

Alan Cherry · 7 Sep 2005, 17:30 (Ref:1401567)

Quote:

Originally Posted by falcemob

Does anyone know what make it was, I need a new one soon.

Falcemob- You should consider the new Les Beer Invisible helmet as demonstrated at Lydden, not only is it incredibly light, also it doesn't mess up your hair ! - You'll have to ask Les where he got it from !

crgmichael · 24 Feb 2006, 22:01 (Ref:1530969)

how the hell did he live hes one lucky man

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