Rollbar and HANS not a safe combination
#31
Instructor
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Which is it? Better have harness or not? On one hand you're saying having harness without HANS is a bad idea but then you say that cage is necessary.
Whether race car or not, if you have full cage & harness, to me it seems you're safer with them even without HANS than with regular 3-point & no cage.
(no need to argue that cage needs to be properly installed etc. as that obviously is assumed when there is a cage)
Yes, and using HANS that is not properly installed has the same untested issues.
You're talking about airbags, right?
Whether they're bad in a car that has 6-point harness & full cage I have no idea. To me it would seem it's not a bad thing but I'm not educated enough to argue about it.
However besides airbags, I don't see how a street car with full cage and 6-point harness differentiates so much from a race car with full cage and 6-point harness and in that case, I have to believe all those races with their harnesses and cages before HANS knew something when they were using those instead of 3-point & no cage.
Whether race car or not, if you have full cage & harness, to me it seems you're safer with them even without HANS than with regular 3-point & no cage.
(no need to argue that cage needs to be properly installed etc. as that obviously is assumed when there is a cage)
Yes, and using HANS that is not properly installed has the same untested issues.
You're talking about airbags, right?
Whether they're bad in a car that has 6-point harness & full cage I have no idea. To me it would seem it's not a bad thing but I'm not educated enough to argue about it.
However besides airbags, I don't see how a street car with full cage and 6-point harness differentiates so much from a race car with full cage and 6-point harness and in that case, I have to believe all those races with their harnesses and cages before HANS knew something when they were using those instead of 3-point & no cage.
You are trying to conflate two entirely different things. If you think that I'm saying that people should be racing with three point belts, well, I'll just say that I don't think you are actually reading what I wrote.
There are two entirely separate issues here. The first is that you would be nuts to wear a harness on track and not wear a HANS today. The past is pretty much completely irrelevant. Without a HANS or equivalent, your neck is almost completely unprotected. In a street car that does not have a cage, the airbags and seat belts are designed to limit the damage. That's why people don't generally break their necks in crashes on the street (or on track in street cars).
The second issue is the question of what safety equipment actually makes you safer when you are running a street car on the track?
There are a couple levels to this question:
1) In a bone stock car, are you actually safer wearing a helmet? Does the interaction between the helmet and your airbags make you less safe? Is the extra weight added to your head harmful?
2) What is the minimum level of safety equipment necessary to actually make you safer? I said that in a relatively modern car in a DE (i.e. NOT racing!), if I couldn't use a HANS, I'd rather just wear the 3-point.
Again, let me reiterate: I am not talking about racing. When it comes to actual racing safety, I am a great believer in stepping through the FIA handbook. And, of course, the FIA handbook includes HANS.
#32
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To go back to the OP, if my car still had the DAS bar in it, I'd wear a HANS device, no question. Sorry, Juha, based on completely anecdotal observations, I see far more guardrail or tire wall impacts than rollovers. The track rollovers I have seen with 911's either with or without a rollbar have resulted in an intact driver compartment. This is based on over a decade of track experience. (Cue Ken to one up me with his thirty plus years of track work.
)
When I go out on the track, even if it's "just" a DE, no matter how hot it is, I wear my suit (with cool shirt) and my HANS device. It's like buying a radar detector and zapping cross country without it because it's too inconvenient. You bought it; why not use it?
![Embarrassment](https://rennlist.com/forums/images/smilies/redface.gif)
When I go out on the track, even if it's "just" a DE, no matter how hot it is, I wear my suit (with cool shirt) and my HANS device. It's like buying a radar detector and zapping cross country without it because it's too inconvenient. You bought it; why not use it?
#33
King of Cool
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#35
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The second issue is the question of what safety equipment actually makes you safer when you are running a street car on the track?
There are a couple levels to this question:
1) In a bone stock car, are you actually safer wearing a helmet? Does the interaction between the helmet and your airbags make you less safe? Is the extra weight added to your head harmful?
2) What is the minimum level of safety equipment necessary to actually make you safer? I said that in a relatively modern car in a DE (i.e. NOT racing!), if I couldn't use a HANS, I'd rather just wear the 3-point.
There are a couple levels to this question:
1) In a bone stock car, are you actually safer wearing a helmet? Does the interaction between the helmet and your airbags make you less safe? Is the extra weight added to your head harmful?
2) What is the minimum level of safety equipment necessary to actually make you safer? I said that in a relatively modern car in a DE (i.e. NOT racing!), if I couldn't use a HANS, I'd rather just wear the 3-point.
Given the number of people who swap out their seats for pure racing seats that don't have integral side airbags, I think that suggesting that people rely on the stock safety systems is a bad idea.
Let me also point out that not all HNRs work like the HANS and require a /6-point harness to be effective. There are other systems available that might be a better fit for use in a "pure" street car.
#36
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To go back to the OP, if my car still had the DAS bar in it, I'd wear a HANS device, no question. Sorry, Juha, based on completely anecdotal observations, I see far more guardrail or tire wall impacts than rollovers. The track rollovers I have seen with 911's either with or without a rollbar have resulted in an intact driver compartment. This is based on over a decade of track experience. (Cue Ken to one up me with his thirty plus years of track work.
)
When I go out on the track, even if it's "just" a DE, no matter how hot it is, I wear my suit (with cool shirt) and my HANS device. It's like buying a radar detector and zapping cross country without it because it's too inconvenient. You bought it; why not use it?
![Embarrassment](https://rennlist.com/forums/images/smilies/redface.gif)
When I go out on the track, even if it's "just" a DE, no matter how hot it is, I wear my suit (with cool shirt) and my HANS device. It's like buying a radar detector and zapping cross country without it because it's too inconvenient. You bought it; why not use it?
Now, contrast that with the 100% stock E36 M3 I had the (dis)pleasure of riding in when we went softly sliding off track at Thunderhill, hitting some ruts and doing a 720. A pillar crushed down in the driver's head. And I'm not sure how arms didn't fly out the windows. All this at 20 (?) MPH.
Nearly infinite number of scenarios out there; and I've seen total POS cars survive rather well, as well as pro-prepped DE cars with properly installed "lite" equipment having a poor outcome.
Ultimately, I say work with PROFESSIONALS to acheive your comfort/risk level.
#40
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For me it is easy:
3 point harness -> no HANS
6 point harness -> HANS
Someone should not drive 6 pt harness without a HANS ... But this is my risk management and shared by a lot of pro coaches on my race tracks.
3 point harness -> no HANS
6 point harness -> HANS
Someone should not drive 6 pt harness without a HANS ... But this is my risk management and shared by a lot of pro coaches on my race tracks.