hans device. first impression
03-11-2012, 02:03 PM
#16
Actually the 1st gen HANS had a closer look to the lawsuited away defender. Wings never improved the function of the device on the sled and early racer crashtest dummies lived just fine. Everyone believes the wings help belt retentions so there they are. HANS says the belts can slip off the HANS tails is fine as long as they don't slip off the collar (winged part).
I use the double shoulder belt HANS. When my 1st set expired I tried a friends scroth 3/2 HANS belts and they were not the comfort I was used to with the doubles. I think I paid 600 or more for my second set of the doubles less than a year ago but they are comfortable. 3" on body and 2" just for the HANS. Do not try them unless you got 600 bucks because you are going to like them.
While it may not seem so especially because of the rear seat holes the emergence of the belts as they come off the harness bar have a huge effect on how the HANS stays on your shoulders. There is the old generic rule of belt spacing 3" center to center iirc and a more specific formula calculated based on distance of HANS collar to the harness bar and some other details. I have it as a pdf right from HMS or FIA I can't remember. PM me if you can't find it and I'll try and dig it up.
I use the double shoulder belt HANS. When my 1st set expired I tried a friends scroth 3/2 HANS belts and they were not the comfort I was used to with the doubles. I think I paid 600 or more for my second set of the doubles less than a year ago but they are comfortable. 3" on body and 2" just for the HANS. Do not try them unless you got 600 bucks because you are going to like them.
While it may not seem so especially because of the rear seat holes the emergence of the belts as they come off the harness bar have a huge effect on how the HANS stays on your shoulders. There is the old generic rule of belt spacing 3" center to center iirc and a more specific formula calculated based on distance of HANS collar to the harness bar and some other details. I have it as a pdf right from HMS or FIA I can't remember. PM me if you can't find it and I'll try and dig it up.
03-11-2012, 02:21 PM
#17
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please take some pix of your setup. What do you mean about the shoulder belts.not going to the cross bar?
Did you purchase an older model Hans? The 650 seems to be a standard 20 deg but an older version. Do you have sliding tethers on yours? You mention ajusting the tether length. I suspect you have an older device without sliding tethers. If you have the old tethers I think you should update as they improve your ability to see side to side.
Did you purchase an older model Hans? The 650 seems to be a standard 20 deg but an older version. Do you have sliding tethers on yours? You mention ajusting the tether length. I suspect you have an older device without sliding tethers. If you have the old tethers I think you should update as they improve your ability to see side to side.
03-11-2012, 06:04 PM
#18
Race Director
...
what do you guys do to keep the belts on the "runners" of the hans? the little velcro straps seem to work ok, but in leaning forward, the belts move around a lot and seems to really make the teathering ability of the straps to the helmet move around a lot. I wonder of the movement in a violent crash could actually derail the belts from the hans.
...
what do you guys do to keep the belts on the "runners" of the hans? the little velcro straps seem to work ok, but in leaning forward, the belts move around a lot and seems to really make the teathering ability of the straps to the helmet move around a lot. I wonder of the movement in a violent crash could actually derail the belts from the hans.
...
When I'm strapped in, I feel like I'm bolted to my seat. The only things that can move are my arms, legs, and head.
And I've got the non-Hans harnesses, so it takes a little adjustment to get them in the slot, but once synched down, nothing moves.
03-11-2012, 08:45 PM
#20
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Thread Starter
Mark,
Yea it does sound like something is amiss. What model did you get? All the current ones have the lips to keep the belts on top of the shoulder pads. Also only the 20degree model will work in a Porsche (unless you just upgraded to a spider ). Also the length of the tethers is very specific to the location of the mounts on the side of the helmet, they give you a precise location for installing these so the tether length shouldn't vary. I've only use HANS and like Joe said don't even notice it once the belts are all adjusted properly. If you liked the Hutchins why change? A lot of guys like the alternative devices. I was looking at the newer model of HANS with the rounded top, looks like it would be less likely to catch on stuff.
Yea it does sound like something is amiss. What model did you get? All the current ones have the lips to keep the belts on top of the shoulder pads. Also only the 20degree model will work in a Porsche (unless you just upgraded to a spider ). Also the length of the tethers is very specific to the location of the mounts on the side of the helmet, they give you a precise location for installing these so the tether length shouldn't vary. I've only use HANS and like Joe said don't even notice it once the belts are all adjusted properly. If you liked the Hutchins why change? A lot of guys like the alternative devices. I was looking at the newer model of HANS with the rounded top, looks like it would be less likely to catch on stuff.
got the 650, but it was slightly used from a fellow racer that has bagged the sport. its just like the picture that was posted I noticed that the directions say, dont move the tethers, but you can change it up to 1" , but i didnt and wont do that.
the hutchenns i had was the very older model. not SFI rated.
Mark, your geometry may be off. That will give you the feeling of loose and improper fit. The spacing between each belt and the external side belt slip containment of the belts connected to the cage is critical. Same goes for the angle of the belts to the seat eyelets and eyelets to the shoulders. And don't forget the angle of the subs in relation to the sub-eyelet. 20% angle IIRC. It would be wise to read and re-read the pamphlet that came with the Hans or check on Schroth's website.
angle without me sitting in it is horizontal, when im strapped in, about 1" higher at my shoulders, going down to the horizontal bar. just as advised in the manual.
please take some pix of your setup. What do you mean about the shoulder belts.not going to the cross bar?
Did you purchase an older model Hans? The 650 seems to be a standard 20 deg but an older version. Do you have sliding tethers on yours? You mention ajusting the tether length. I suspect you have an older device without sliding tethers. If you have the old tethers I think you should update as they improve your ability to see side to side.
Did you purchase an older model Hans? The 650 seems to be a standard 20 deg but an older version. Do you have sliding tethers on yours? You mention ajusting the tether length. I suspect you have an older device without sliding tethers. If you have the old tethers I think you should update as they improve your ability to see side to side.
sliding tethers??? the tethers have the openings at the end and they fit on the spring loaded connector on the helmet. i dont have the quick releases. I can connect and disconnect the helmet from the tethers pretty easily with the helmet on . dont know if i have sliding tethers. dont know what that is.
This part concerns me. You can lean forward when strapped in to your HANS?
When I'm strapped in, I feel like I'm bolted to my seat. The only things that can move are my arms, legs, and head.
And I've got the non-Hans harnesses, so it takes a little adjustment to get them in the slot, but once synched down, nothing moves.
When I'm strapped in, I feel like I'm bolted to my seat. The only things that can move are my arms, legs, and head.
And I've got the non-Hans harnesses, so it takes a little adjustment to get them in the slot, but once synched down, nothing moves.
it doesnt seem safe AT all, expecially compared to the hutchens which had the best of both worlds. the helmet was attached to a sytem of straps attached to your body, and the normal belts are straped over your shoulders, with nothing getting in their way, like he hans does by design.
Yes, thats the one i have.
Ill post some pictures of the angles, attachements and what im seening when im locked down, how i can lean forward IN the belted down mode.
you see how the early version has almost slopping down sides??? its almost opposite for how it should be designed.
in a very violent crash, this is easily going to find its way to come off the hans and leave you not only neck protected but your body would be free to move aorund alot more. side to side is important too, and that is greatly compromised with the hans set up. dont like it one bit, but ill give it a try . (not going to crash it, but will spend a race day with it and see what it feels like. maybe it will be ok)
03-11-2012, 09:08 PM
#21
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Pictures are definateley going to help here.
If you get everything right and don't like the HANS, check out the R6. I have one and really like it.
If you get everything right and don't like the HANS, check out the R6. I have one and really like it.
03-11-2012, 09:45 PM
#22
Rennlist Member
IMO, it is never a good idea to buy a used HANS or a used helmet.
03-11-2012, 09:46 PM
#23
you see how the early version has almost slopping down sides??? its almost opposite for how it should be designed.
in a very violent crash, this is easily going to find its way to come off the hans and leave you not only neck protected but your body would be free to move aorund alot more. side to side is important too, and that is greatly compromised with the hans set up. dont like it one bit, but ill give it a try . (not going to crash it, but will spend a race day with it and see what it feels like. maybe it will be ok)
in a very violent crash, this is easily going to find its way to come off the hans and leave you not only neck protected but your body would be free to move aorund alot more. side to side is important too, and that is greatly compromised with the hans set up. dont like it one bit, but ill give it a try . (not going to crash it, but will spend a race day with it and see what it feels like. maybe it will be ok)
Opposite? Really? You do know that Dr. Robert Hubbard, a professor of biomechanical engineering at Michigan State University, designed the Hans Device. Read that again: a biomechanical engineer designed the Hans Device.
Yes, the Hans Device is so badly designed that it is mandatory in Formula One.
Scott
03-11-2012, 09:47 PM
#24
Mr. Excitement
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Google sliding tethers and Hans. You have an old version with old tethers. Sounds like you are spending more time and effort hating the replacement to your loved hutchins than looking at the basic requrements of the Hans.
A lot of folks are using the Hans with little issue.
A lot of folks are using the Hans with little issue.
03-11-2012, 09:55 PM
#26
Mr. Excitement
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03-11-2012, 09:58 PM
#27
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Unless you have owned the helmet or HANS since new--a total 100% closed chain of custody--you have no idea just how safe the device is. Helmets get dropped. Helmets hit roll cages in accidents. HANS devices get run over by trailers. HANS devices are involved in accidents.
Why risk it? I don't get it.
Not to mention, in this case, getting a CLEARLY ancient & hard to use HANS.
Wow.
03-11-2012, 09:59 PM
#28
I'm in....
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03-11-2012, 10:08 PM
#29
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03-11-2012, 10:12 PM
#30
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