SUMMARY: What if the yoke didn't require constant pressure, as is the case with the current "trim" function?
In all cases that I know of, airplanes have had the yoke (which you need to apply constant pressure on) and trim (which you don't) separate. The yoke is used to short inputs, such as a roll or a pitch down, and the trim is used to maintain the aircraft in a specific attitude, given the changing nature of center of lift and gravity.
But I do not understand why it is necessary for them to be separate. Trim can do (almost) everything a yoke can. Would it be a good idea to combine the two?
- Safety; fast reaction to sudden trim changes (such as part of wing or empennage breaking off)
- trim does not center itself, so there's that inconvenience
- increase chance of wild maneuvers if left unattended while deflected