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From: David Jones
From experience where dual shoulder belts came off shoulders and allowed severe facial injuries in the crash of a small plane, I have some observations:
The placement of the anchor point on the shoulder strap of the IV is too high. It is probably going to allow lots of cervical injuries in any kind of mishap, and will also allow forward impact against the dash when it slips off.
Lowering the attach point might help some. Compression injuries are probably not related to the placement of this belt. If you hit hard enough to compress, you will get a whiplash effect as a secondary movement of your body, and you better have your upper torso restrained.
Lastly, most impacts will likely be high speed, and since most any impact above 70 kts is not surviveable, no matter whether horizontal or vertical, and since we land at 100 kts plus, why worry about the placement anyway?
So I left mine where it was, and I spend most of my effort in figuring out how to avoid getting into a crash situation...
Been there, didn't like it at all...
LML website: http://www.olsusa.com/Users/Mkaye/maillist.html
Builders' Bookstore: http://www.buildersbooks.com/lancair
Please send your photos and drawings to marvkaye@olsusa.com.
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