So a pilot in a twin otter is more "diligent" than a pilot in a 777?
Perhaps not, though I opine that a pilot hand flying a 777 will be more diligent than a pilot watching [or not] it fly itself. Similar for any automated plane, if you're hand flying it, you are probably paying more attention to the flying.
Yeah, yeah, I know, Asiana went bump in SFO, I think that was an example of the back side (pun intended) of the power curve of pilot's lack of lack of diligence - or awareness and skill......
This article, posted elsewhere, seems relevant.... (I re quote a poster on a different site):
Automated cockpits affect pilots' emergency skills
Press Trust of India | Washington December 2, 2014 Last Updated at 15:50 IST
Automated cockpits may negatively impact pilots' thinking skills such as navigating and their ability to diagnose troublesome situations, a new study has warned.
Researchers from the Human Factors and Ergonomics Society in US studied how the prolonged use of cockpit automation negatively impacts pilots' ability to remember how to perform these key tasks.
"There is widespread concern among pilots and air carriers that as the presence of automation increases in the airline cockpit, pilots are losing the skills they still need to fly the airplane the 'old-fashioned way' when the computers crash," said Steve Casner, coauthor of study and research psychologist at NASA's Ames Research Centre.
Casner and coauthors Richard Geven, Matthias Recker, and Jonathan Schooler studied 16 experienced pilots as they flew routine and nonroutine flight scenarios in a Boeing 747-100 simulator.
Levels of automation available to the pilots were varied as the researchers graded pilots' performance. The pilots also reported what they were thinking about as they flew.
Results indicated that pilots' instrument-scanning and "stick-and-rudder" skills remained reasonably intact despite prolonged periods of disuse.
More significantly, however, the study found that pilots often struggled with maintaining awareness of the airplane's position when the GPS and map display were disabled, or with troubleshooting problems when the automated systems were not available to provide hints.
Furthermore, pilots who relied more heavily on the computers to handle these tasks and who allowed their thoughts to drift during flight were more likely to suffer the effects of rusty cognitive skills.
"Our results suggest that we might be a bit less concerned about things that pilots do 'by hand' in the cockpit and a bit more concerned about those things that they do 'by mind,'" said Casner.
"Pilots' ability to remain mindful and engaged as they now watch computers do most of the flying may be a key challenge to keeping their cognitive skills fresh," Casner added.
The study was published in the journal Human Factors.
The Retention of Manual Flying Skills in the Automated Cockpit