Gen'understood that CAT3 are 'performed'with autopilot and'AUTOLAND'...Alasks and others recieved aproval for lower than CAT2 by having HUD to supplement the anto pilot at 80'TSO for the landing (flare)part of the approach. The B727,and early B737 didn't have Autoland,hence the Hybrid Cat3.......
With the advent of the B767 and later the majority of Transports utilized 'Fail operational'autopilot autoland....
The continued HUD developement today is to cater to none autoland aircraft ,below the 737 ????
The FAA have approved private operations of CAT2 for years,as long as the autopilot was 'cert' to the 80'disconnect-for a manual landing..
