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#21
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A. Jones wrote: On Sat, 17 Oct 2009 13:31:42 -0400, Vandar <vandar69 (AT) yahoo (DOT) com> wrote: I've often wondered why they can't just have the helmet straps attached to the seat. My guess is it would be too simplistic and inexpensive. My guess is, it wasn't designed to work that way...then again, I suppose you are gonna claim to know more than the people at HANS. |
#22
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On Sun, 18 Oct 2009 09:38:36 +1100, "Chad" <cbstun (AT) safemail (DOT) com wrote: A. Jones wrote: On Sat, 17 Oct 2009 13:31:42 -0400, Vandar <vandar69 (AT) yahoo (DOT) com wrote: I've often wondered why they can't just have the helmet straps attached to the seat. My guess is it would be too simplistic and inexpensive. That's gotta be just bait! ![]() I offer my opinions, Chad, and I think my explanations are direct, straight forward, and easy to understand; plenty good enough for most people here. You did not agree with me about engine displacement. You do not like my definition of roof flap design. And, lemmie guess, you don't like my comment on the HANS. Go figure. |
#23
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On Sun, 18 Oct 2009 09:38:36 +1100, "Chad" <cbstun (AT) safemail (DOT) com wrote: A. Jones wrote: On Sat, 17 Oct 2009 13:31:42 -0400, Vandar <vandar69 (AT) yahoo (DOT) com wrote: I've often wondered why they can't just have the helmet straps attached to the seat. My guess is it would be too simplistic and inexpensive. That's gotta be just bait! ![]() I think my explanations are direct, straight forward, and easy to understand; |
#24
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On Sun, 18 Oct 2009 09:38:36 +1100, "Chad" <cbstun (AT) safemail (DOT) com wrote: A. Jones wrote: On Sat, 17 Oct 2009 13:31:42 -0400, Vandar <vandar69 (AT) yahoo (DOT) com> wrote: I've often wondered why they can't just have the helmet straps attached to the seat. My guess is it would be too simplistic and inexpensive. That's gotta be just bait! ![]() I offer my opinions, Chad, and I think my explanations are direct, straight forward, and easy to understand; plenty good enough for most people here. |
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You did not agree with me about engine displacement. You do not like my definition of roof flap design. And, lemmie guess, you don't like my comment on the HANS. Go figure. |
#25
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On Sat, 17 Oct 2009 18:55:24 -0400, "armpit" <armarmpitpit (AT) yahoo (DOT) com wrote: if you attach the helet to the seat, there is a very realistic chance of getting trapped in the car. Not to It's okay to strap your body into the seat but not your head because you might get trapped... mention that attaching the helmet to the seat would break the driver's neck in a frontal collision. Because your body would go flying out of its harness... LOL |
#26
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On Sat, 17 Oct 2009 18:55:24 -0400, "armpit" <armarmpitpit (AT) yahoo (DOT) com wrote: if you attach the helet to the seat, there is a very realistic chance of getting trapped in the car. Not to It's okay to strap your body into the seat but not your head because you might get trapped... mention that attaching the helmet to the seat would break the driver's neck in a frontal collision. Because your body would go flying out of its harness... LOL |
#27
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A. Jones wrote: On Sat, 17 Oct 2009 18:55:24 -0400, "armpit" <armarmpitpit (AT) yahoo (DOT) com wrote: if you attach the helet to the seat, there is a very realistic chance of getting trapped in the car. Not to It's okay to strap your body into the seat but not your head because you might get trapped... mention that attaching the helmet to the seat would break the driver's neck in a frontal collision. Because your body would go flying out of its harness... LOL Oh gawd, I know I should resist, but I'll try one serious response to you. during a front on accident the seat will decelerate at a very different rate to the driver and his belts. The idea of the HANS is to keep head deceleration at the same rate as the body (in particular the spine). So the HANS needs to be part of the body/belt "mass" so that it can match the head deceleration to the body. If the helmet was just mounted to the seat a persons body would decelerate a lot slower than the helmet/seat/head, putting some level of pressure on the neck. I don't know how far a drivers body does move forward compared to the seat, but I'd guess anything more than an inch or two suddenly, at 8gs, would be enough to really hurt something in there. -- Chad |
#28
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A. Jones wrote: On Sat, 17 Oct 2009 18:55:24 -0400, "armpit" <armarmpitpit (AT) yahoo (DOT) com wrote: if you attach the helet to the seat, there is a very realistic chance of getting trapped in the car. Not to It's okay to strap your body into the seat but not your head because you might get trapped... mention that attaching the helmet to the seat would break the driver's neck in a frontal collision. Because your body would go flying out of its harness... LOL Oh gawd, I know I should resist, but I'll try one serious response to you. during a front on accident the seat will decelerate at a very different rate to the driver and his belts. The idea of the HANS is to keep head deceleration at the same rate as the body (in particular the spine). So the HANS needs to be part of the body/belt "mass" so that it can match the head deceleration to the body. If the helmet was just mounted to the seat a persons body would decelerate a lot slower than the helmet/seat/head, putting some level of pressure on the neck. I don't know how far a drivers body does move forward compared to the seat, but I'd guess anything more than an inch or two suddenly, at 8gs, would be enough to really hurt something in there. |
#29
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On Sun, 18 Oct 2009 10:21:40 +1100, "Chad" <cbstun (AT) safemail (DOT) com wrote: during a front on accident the seat will decelerate at a very different rate to the driver and his belts. The idea of the HANS is to keep head deceleration at the same rate as the body (in particular the spine). So the HANS needs to be part of the body/belt "mass" so that it can match the head deceleration to the body. If the helmet was just mounted to the seat a persons body would decelerate a lot slower than the helmet/seat/head, putting some level of pressure on the neck. I don't know how far a drivers body does move forward compared to the seat, but I'd guess anything more than an inch or two suddenly, at 8gs, would be enough to really hurt something in there. I've considered all that and believe a head harness could be tuned to sync with the body during each given degree and direction of impact. I'm not saying the HANS is a bad device, or entirely bogus. It's just that I think Vandar brought up a good question. The question is why not, and I'm not satisfied with anything I've seen so far. Should that make me a bad person or someone to revile and insult? Let me ask, why are you here? Are you here to think about and discuss the topics, or is everyone supposed to get in unison lockstep with each other and agree with everything everyone says? Let's agree to simply disagree in a civilized manner. ![]() If it were as simple as attaching the helmet to the seat, don't you |
#30
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On Sun, 18 Oct 2009 09:56:05 +1100, "Chad" <cbstun (AT) safemail (DOT) com wrote: You have me mixed up with someone else, I made one comment about displacement, neither for you or agin you, and I don't think I commented at all in the roof flap thread. What you have said, in all three topics, indicates you disagree. And each successive time you're getting more and more combative. I see it over and over in certain people but I did not think you were like that. It's kind of disappointing. |
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I'm pretty sure you said something idiotic about G forces in the Trulli thread though! I did not make one single post in topic. I'm not the confused one. And I didn't say I didn't like your comment here, was just observing that it's so obviously wrong to anyone who bothered to try google, or just read this entire thread, that it must have been bait to get TS into another long winded argument. You were calling me a troll, when all I did is give my honest opinion. |
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But if I was wrong about that, I guess you really are just a useless windbag that spews out the first thought that comes to mind without a care if it's right, wrong or just plajn stupid. There it is... insults, name calling. No vulgarity? In time I guess. But no doubt from this response, you will back up this opinion with plenty more ill informed posts to win tour argument anyway. To win tour argument... ill formed posts... Good grief. Enjoy yourself, if you find a player. ;-) Wasn't looking for one, but I guess I did find a player. You. |

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