A recurring topic on this forum is "rated" recovery points, and the "extreme forces" involved in snatch recoveries.
For many years, we have been directing people to the video produced by Mitsubishi Motors Australia, where they deliberately bogged a Gen3, snatched it using only one factory loop, and checked for signs of distortion in the body.
https://www.youtube.com/watch?v=wPXixsvjDjY
For their worst-case snatch, they reported a maximum force of 31.6 kiloNewtons, or nominal 3220 kg.
I just stumbled across a video produced by TJM, where they deliberately bogged a ute and camper trailer, and measured the forces required to snatch it out.
https://www.youtube.com/watch?v=T6ib-tY-f8U
TJM intelligently used a bridle to distribute loads over both of their recovery points - wouldn't be a good look to distort their ladder frame.
So, what was the peak force they recorded, in attempting to snatch their bogged combination?
TJM Snatch Testing.png
Their peak force was only 60kg less than measured by Mitsubishi over 10 years ago, or about 2% less - arguably measurement error. Both tests, in different locations using different equipment, close on 2 decades apart, measured the same peak forces.
Is that a lot?
Mitsubishi's peak force of 31.6kN is a little over 7000 pounds. Those of us with winches on our 4wds would have something rated to 9500 pounds or more, and carry a snatch block to double that - worst case, a winch recovery could be generating more than double the forces measured by these two different tests.
Please don't talk about "extreme forces" in snatch recoveries. Done properly, they're not that extreme.
For many years, we have been directing people to the video produced by Mitsubishi Motors Australia, where they deliberately bogged a Gen3, snatched it using only one factory loop, and checked for signs of distortion in the body.
https://www.youtube.com/watch?v=wPXixsvjDjY
For their worst-case snatch, they reported a maximum force of 31.6 kiloNewtons, or nominal 3220 kg.
I just stumbled across a video produced by TJM, where they deliberately bogged a ute and camper trailer, and measured the forces required to snatch it out.
https://www.youtube.com/watch?v=T6ib-tY-f8U
TJM intelligently used a bridle to distribute loads over both of their recovery points - wouldn't be a good look to distort their ladder frame.

So, what was the peak force they recorded, in attempting to snatch their bogged combination?
TJM Snatch Testing.png
Their peak force was only 60kg less than measured by Mitsubishi over 10 years ago, or about 2% less - arguably measurement error. Both tests, in different locations using different equipment, close on 2 decades apart, measured the same peak forces.
Is that a lot?
Mitsubishi's peak force of 31.6kN is a little over 7000 pounds. Those of us with winches on our 4wds would have something rated to 9500 pounds or more, and carry a snatch block to double that - worst case, a winch recovery could be generating more than double the forces measured by these two different tests.
Please don't talk about "extreme forces" in snatch recoveries. Done properly, they're not that extreme.
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