Originally posted by Dave Zaslow:
Gregg and Jay,

Look at lfttech brochure (rightmost button)and tell us what you think. Perhaps on a different thread? This one is getting hijacked away from its estimable purpose.

Dave Z
Dave,

Random observations:

1) Because it is a different version the HANS device--the vertical component's reaction being resisted by a structure at the rear rather than the front of the body--one would expect to see similar head load reductions.

2) Page 2 is confusing. What "80% rule" are they referring to? Why is the baseline value relatively low? Why is the G-Force value so high? Is this the NASCAR pulse, but not on the Delphi sled? Lastly, this is a different chart from that on the Web site, which has changed recently. Perhaps they just got sloppy, but one would prefer the loose ends tied together.

3) Dealing with non-scientific issues, I would not want to drag it out the window in a hurry. It requires some modification of the seat and, IIRC, comes in different models to accomodate various seat angles. That's not a disadvantage of course, but good to know if you are shopping and have multiple cars.

4) I love the images at the top of page 3 showing the belts coming off the HANS device. Excellent video captures.

Jay?

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Gregg Baker, P.E.
Isaac, LLC
http://www.isaacdirect.com