7478ti:
What was the target level of safety on those early auto-land systems? Were they fail operational?
BTW, I am curious which 737 type was the first 737 to come with two autopilots, and with the equivalent level of safety and operational capability as the early 767s?
EDIT: Several years after TWA completed delivery of its 727-231s they placed a follow-on order for ten "advanced" 727s (727-231A). It had a souped up version of the same crummy auto-pilot as the earlier 727s. But, it could do what they jokingly called CAT III (50' DA, 1,000 RVR). It would flare, but not decrab nor did it have rollout guidance. The pilot group basically boycotted that feature.
Last edited by aterpster; 25th February 2016 at 17:43.