dtuuri
Final Approach
Checklists can be used as "read and do" lists, "briefing" lists or "did" lists depending on the particular flight phase, the aircraft involved, the pilot's experience with the aircraft and generally, and other factors.
"Read and do" - read and step and do it - is mostly used by new pilots and pilots in new-to-them aircraft as they are learning different cockpit flows. Some, of course, never get past that stage.
"Briefing" - Best example is before takeoff, especially for those who fly different types aircraft. I use my checklist to "brief" from Vr through the transition to en route climb. I'm kind of hoping no one starts tolling down the runway and then looks at a checklist for the first time to see when to rotate (read-and-do), or, for that matter, takes off and then checks back to see whether they did it right ("did").
"Did" list. Also what some folks will refer to as a real "check" list. That's the flow followed by a check. i think the first one of those taught to most pilots is the preflight inspection - examine a segment of the airplane with a flow and check back to see if you managed to miss something.
I use a combination of "briefing" and "did" usage. "Briefing" for takeoff and before landing. Flow and "did" for most everything else.
Very nice summation. I would add that emergency checklists are "Read and do" except for recall items, even with professional pilots who fly every day. They are usually of a "Challenge and response" format, which I found to sometimes caused confusion, since the challenger is schooled to read the response as well and then the responder verifies and restates it. I rewrote them to simply state the action required. Then the responder could make an appropriate response as the situation called for.
dtuuri