The first federal lap belt standard in the US was in 1965 although they had
already been required by several states. In fact most states had been
requiring the provision of front anchors since the early 60s. While the
roadster had a shoulder belt starting in 67, and of course Volvo had a 3
point starting in 63, they were not made mandatory until 1973.
Jerry Krakauer
----- Original Message -----
From: <andycost@embarqmail.com>
To: "datsun-roadsters" <datsun-roadsters@autox.team.net>
Sent: Tuesday, December 18, 2007 2:56 PM
Subject: [Roadsters] Harnesses and helmets
> The DOT and Snell ratings are primarily different because of the
> certification requirements. DOT is self certified by the manufacturer.
> Snell is a 3rd party independant certification. Therefore, DOT
> certification is not as respected as Snell. There is lots of debate over
> which test method is more safe. Snell requires two impacts on the same
> spot where DOT only requires one. That requires the Snell EPS padding to
> be stiffer or to be twice as thick. Stiffer padding equals more impact to
> your brain. Regardless of all the arguement I would remind everyone that
> the helmet is only designed for a drop from 6 feet onto the ground. It is
> not designed to protect in a collision between the occupant and items
> inside the car or between the motorcycle rider and the Buick that he just
> rear ended at 30 mph. Will it help in those situations? Possibly.
>
> FIA also has a helmet rating system which is highly respected. Since it
> is European you don't see it much here. You do see FIA rating on
> harnesses here.
>
> I would suggest that you will not be able to successfully duck in a
> rollover. Also, without a good roll bar that attaches to the frame and
> extends at least 2" above your head you will probably be toast in any roll
> over situation regardless of what kind of belt you are wearing.
>
> It was my understanding that seat belts were not mandatory until the late
> 70's. I beleive that you may go without seatbelts in any car before they
> were mandatory. You should be able to install anything you want in those
> cars.
>
> I like the 5 point harness in my race car because it holds me tight while
> cornering. It takes less effort to control the car if I am not trying to
> hold myself in place with the steering wheel and bracing my feet on the
> floorboard. I would recommend the 5 point harness for street driving.
> The chance of having an accident where they would cause more harm than
> good is rare. Also note that regular seatbelts are only designed for the
> 90th % male. I believe that is 190 pounds and around 5'10". Is anyone on
> this list bigger than that?
>
> Andy
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