Originally Posted by
Grappler
With the crane mounted at the rear corner the moment of force transferred to the vehicle is greater than when mounted "midship"
Mounted in the middle of the vehicle you only need one outrigger to stabilize the lateral force that wants to roll the vehicle, assuming the crane is lifting from one side of the vehicle
When mounted at the rear the force can be in two planes, longitudinal and lateral, so you should use two outriggers
By mounting the crane close to the centre of gravity of your vehicle, and using outriggers, the stability during lifting will be safer
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