The crane has got the load as far as it can. The jib may be at the end of its reach, there may be an obstacle to moving the crane body, there may be an overhang, or the destination may be in a confined interior space with little or no headroom, while the load is a large module that needs to be manoeuvred into it. Moving the load that last bit that the crane cannot manage— that, essentially, is bull rigging.

December 18, 2018