Peter your statement is correct.
To tie down a vehicle for air uplift
You need enough tie down devices for rearward movement to hold twice the gross weight but for forward restraint it needs to increase to 4 times.
Sideways the figure is 1.5 times.
The real secret is to ensure that attachment points on the vehicle and trailer will handle that load
Regards
Col
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Vietnam Vet and proud of it.
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