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3 Nov 2005, 20:43 (Ref:1451573)
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#51 | ||
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Veteran
Join Date: Mar 2003
Posts: 3,523
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What gets me about the 2" 3" belts business, is that Schroth developed the HANS, and they only offer a 2" belt for use with it, after their extensive tests showed a possible problem using a 3" belt.
As for the extinguishers, electronic, or mechanical. Hand-helds don't get siezed cables, or battery issues. We just jump out of the car and leave them in there! No different to getting out and legging it without pulling the cable, or pressing the fire button. Rob. |
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There is no substitute for cubic inches. Harry Belamonte - 403ci Vauxhall Belmont!! A 700hp wayward shopping trolley on steroids!! 
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3 Nov 2005, 21:03 (Ref:1451588)
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#52 | ||
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Veteran
Join Date: Jan 2005
Posts: 2,621
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That was one of the first mistakes with Hans, they only realised afterwards that the 3" belts slipped down. The new belt is now 3" at the waist and changes into 2" on the shoulders.
Properly mounted they should be crossed at the back as well. About the extinghuiser Rob: when on fire, park near a marshals post so that they use the track bottles. No need to use your own then. 
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The older I get, the better I used to be !
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12 Nov 2005, 08:42 (Ref:1458666)
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#53 | ||
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Veteran
Join Date: Dec 2002
Posts: 730
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It seems pretty pointless to have 3" belts that drop down to 2" at the shoulders, as thats where most of the force will be exterted in an sudden decelleration. Would have thought its a much better design principle to adapt the HANS to 3". I have had to have 3" belts in my F3 car since 2003 though? How would that cope with the mandatory 3" rule if I then had the belts that changed to 2" at the shoulder?
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__________________
"Centipede: An ant built to government specifications"
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12 Nov 2005, 09:50 (Ref:1458690)
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#54 | ||
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Veteran
Join Date: Aug 2002
Posts: 1,686
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No problem, 2" shoulder belts are allowed if you have a HANS device.
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12 Nov 2005, 12:03 (Ref:1458779)
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#55 | |||
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Veteran
Join Date: Oct 2003
Posts: 1,753
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Quote:
See www.hansdevice.com The original Hans had a return lip on the shoulder "legs" which was presumably to retain the belts, but this was dropped in favour of the friction surface now on them. Scroth, I believe manufacture under licence, as do Stand21. I've never seen any mention of crossing the belts Eddy, in fact all the website (above) information says to keep the shoulder belt as short as possible. It does however give dimensions for the distance between the shoulder straps and the angle of the straps behind the shoulders is precise. |
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If, as Freddie Mercury claimed, fat bottomed girls make the rocking world go round, isn't it about time that Croydon received some recognition for its contribution to astrophysics?
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13 Nov 2005, 09:47 (Ref:1459477)
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#56 | ||
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Veteran
Join Date: Jan 2005
Posts: 2,621
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John, after we indured the first problems with Hans early this year, we contacted Stand21, they told us to cross the belts.
In the office I have some written things about this, even from the FIA. I'll look it up tomorrow, when back in the office. |
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The older I get, the better I used to be !
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