Originally Posted by
joethepilot
I believe the logic is that really the HUD is only needed for near 0/0 landings... Normal procedure at most airlines call for Captains to fly/land extremely low visibility approaches any way (see CATII at your regional)... hence if it was needed chances are the CA would be flying it any way. The technology is expensive so its not worth putting two in.
Where did you get this? There are rules governing Cat II and Cat III approaches and landings addressed in each airlines ops specs. Normally a Cat II or III approach is flown via the autopilot with an autoland (if applicable). At a lot of airlines the SIC actually is the PF and the PIC monitors the approach until DH at which point he/she assumes the landing and rollout. Cat II and III approaches are very specific in who does what when, callouts, and reasons to execute a GA.