"Ignoramus30422" wrote

I am wondering if those cranes could have some kind of an automatic
safety system that prevents tipping.

i

They do. It's a chart that tells them how much they can lift with the boom
within any circle and upward angle. Imagine it this way: Put your elbow on
a table. The closer your forearm is to vertical, the stronger you are.
When your forearm heads toward the table, you get weaker. Looking at the
angle of the boom in relationship to horizontal, it is obvious he was down
too far. The final shot of the crane pulled down and laying in a straight
line with the load proves it all. Unfortunately, one does not have to know
how to run a crane to run a crane. And there are all sorts of valuable
information right there in the cab, mainly a chart of loads within a circle
of boom angles, and an actual swinging boom indicator to tell the operator
what angle he's at. Between the two, any operator will know when he is
reaching the parameters of the machine.

Steve