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You seem to be digging for something.
Yes information and qualification of your (and Neils) points.
You've explained what you physically did to your forward recovery points. I sought clarification, a 'why I did it' and possibly a picture.
You (in your last post) described your recovey as a snatch and suggested as you have in other posts that I don't know what I am doing - untrustworthy, obvoisly hasn't any real life experience, pillock etc etc.
You said that I "seem to forget the momentary forces at work with a snatch", well ... that's the first time you said it was a snatch and, yes I do recognise that the kinetic energy release of a snatch pull is significantly high, however, I don't use that technique as I don't think i'm able to reliably calculate the forces involved. I have a winch so don't need to 'snatch' anything.
I understand that the chassis is made from mild steel plate with a yield strength of 550MPa - I asked what you and your recovery mate thought/if you agreed and never got a response.
I asked what the pull off force would be for the rear tow hitch - no answer - 1 reckon it's circa 5000kgs BTW
I have reasoned that the chassis will deform at around 9000kgs and said that: I (fag packet) calculate the max load I put on my D90's chassis to never exceed 5000kgs.
No responses whatsoever other than you guys are so good you don't need to qualify anything. It's all in yoiur gut feelings.
I can't work on gut feelings, I need facts, if I design something and it fails folk may die so it has to be right.
There are likely a lot of people reading this that would be intersted in facts to.
Shouldn't these people (me included) be allowed to gain something from your experience and enginering skills ?
Why did you beef up your recovery points ?
What load will they now take ?
Have you ever exceeded a 9 ton load with your vehicle ?
Here is a very interesting artice that discusses many aspects of this thread - including
@Hippo 's question about what type of tree (who even knew that was a thing ....)
It's even got some math in it, just for
@neilly
https://www.4wdingaustralia.com/4x4/4wd-recoveries-guide-to-forces-and-sizing-recovery-gear/