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> I was in a crash  of a plane that had dual shoulder harnesses--better, but
> not perfect--they had no cross-over buckle holding the two shoulder straps
> together, and my son's shoulders moved back at impact, and he slipped out
> of
> both harnesses and hit the instrument panel.


First Union Securities, Inc.

David -

The harness design you mention with a cross-over strap is, in racing, called
a sternum strap.  I am not a pro racer, but at the amateur level these
devices are NOT permitted as a means of holding a harness around the
shoulders.  The harness is required to fit closely on the shoulder without a
sternum strap.  That's why racing seats have cut-outs in the seat back to
permit the shoulder harnesses to fit snugger across the shoulders and chest.

I don't know the reason for the rule, just know it exists.

Matt


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