Lifting Jet Engines: Rigging Cranes for Complex Objects

AI Thread Summary
When rigging a crane to lift a complex object like a jet engine, it's crucial to avoid lifting from the center of mass and instead use multiple hard points that can support the load. Utilizing engineering drawings helps in determining the weights of subsystems for accurate calculations. Lifting should ideally occur from a point above the center of mass to maintain stability during the lift. If lifted from a point not directly above, the object may shift and seek a new center of mass, which can lead to complications. Proper rigging techniques ensure safety and efficiency in handling heavy machinery.
Spectre32
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Ok If you had a complex object, like a jet engine and what to rig a crane correctly to pick it up, what would be a good procedure on how to go about this? Let's say you had access to the engineering drawings and such, and could thus get approate weights for subsystems(turbine, bypas fans, etc etc) for proper calculations.
 
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You never pick up an object through its center of mass. Always through several hard points on the structure where it can handle the load.

But to answer your question, assume basic shapes and just balance the moments.
 
it's a good idea to lift the object through a point which is above the center of mass. if you lift it from a point not exactly above it, the object would move and try to find a new point of center mass.
 
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