Posted by MarkB_MI on July 18, 2016 at 07:24:59 from (198.208.251.21):
In Reply to: Re: DOT?? posted by Geo-TH,In on July 18, 2016 at 06:02:13:
> Back to my original idea. Do you think the DOT chain requirements will really save your life when you stop faster than 0.8 g's?
> People who have been in an accident say the seat belt leaves burses. So what's your best guess how many negative g's do they experience? Then apply the -g's to DOT chain requirement and D ring strength. Strong enough???
Well George, no doubt the DOT requirements are intended to strike a balance between what is desired and what is practical. You're not going to tie down your machine using anchor chain off the Queen Mary, so at some point your chains will fail.
As I said in an earlier post, it seems that seat belts are designed to handle a 40 G crash. Most likely the assumption being that a 40 G crash is not survivable, even if your seat belts hold. But I'll bet most crashes are 10 Gs or less; enough to bruise you but not enough to sustain serious injury. And I'll bet very few truck crashes exceed 10 Gs. But that means there still must be a lot of truck crashes where the G forces on the load exceed the breaking strength of the restraints.
I suspect that the DOT wants to ensure that the tie-downs are not the weakest link. There are a lot of things that can fail in a 10 G crash: truck frame, trailer frame, trailer king pin, etc. If something else fails first, the full force of the impact will not be transmitted to the load tie-downs.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
