On May 17, 4:44*am, Mxsmanic wrote:

Why do airline operators prefer that their pilots use a flight management
computer instead of flying by hand?

Misconception here. The FMC doesnt "Fly" the aircraft, it directs it.
You can hand fly with the FMC for guidance. The main purpose of the
autopilot is to manage the workload. FWIW I hand fly ALL approaches
that I am legal to do so.
Frank