Mystery turn control device on older jets

Mxsmanic wrote:
Luke Skywalker writes:


Well not remembering which jet leaves the field wide open...but if it
was on the pedestal of a B737 200 series or a B727 or a B707 you were
looking at the rudder trim knob.


I thought of that, but this was larger ... and you wouldn't normally use
rudder trim to turn the aircraft.

I guess it could be a manual turn controller for the autopilot, as Bob said,
but I wonder how it was used and why it's gone now. Maybe it was something
like control wheel steering (also apparently not used much in practice).



Take a look at this pictu

http://www.airliners.net/open.file/1149076/L/

At the very bottom center of the photo is the rudder trim knob. Ahead
of it, on the center console, forward of the nav & com radios, and just
below the 3 fuel cutoff levers, is a smaller, grey knob. This is the
autopilot manual turn (and pitch) control knob. It is used to turn the
aircraft left or right, if you're not using a heading &/or nav mode,
while the autopilot is engaged. It is also used to command nose up or
down, unless you are coupled in "approach" mode.

Happy flying!
Scott Skylane

Scott Skylane writes:

Take a look at this pictu

http://www.airliners.net/open.file/1149076/L/

At the very bottom center of the photo is the rudder trim knob. Ahead
of it, on the center console, forward of the nav & com radios, and just
below the 3 fuel cutoff levers, is a smaller, grey knob. This is the
autopilot manual turn (and pitch) control knob. It is used to turn the
aircraft left or right, if you're not using a heading &/or nav mode,
while the autopilot is engaged. It is also used to command nose up or
down, unless you are coupled in "approach" mode.

That could be it. I recall it being the size of the lower knob, but it was so
long ago (when I was a child) that I could be remembering things incorrectly
and confusing one control with another. I was interested in planes even then
but I knew nothing about cockpit controls at the time.

--
Transpose mxsmanic and gmail to reach me by e-mail.

Mxsmanic wrote in
:

Scott Skylane writes:

Take a look at this pictu

http://www.airliners.net/open.file/1149076/L/

At the very bottom center of the photo is the rudder trim knob.
Ahead of it, on the center console, forward of the nav & com radios,
and just below the 3 fuel cutoff levers, is a smaller, grey knob.
This is the autopilot manual turn (and pitch) control knob. It is
used to turn the aircraft left or right, if you're not using a
heading &/or nav mode, while the autopilot is engaged. It is also
used to command nose up or down, unless you are coupled in "approach"
mode.

That could be it. I recall it being the size of the lower knob, but
it was so long ago (when I was a child) that I could be remembering
things incorrectly and confusing one control with another. I was
interested in planes even then but I knew nothing about cockpit
controls at the time.


You're an idiot, you don't fly you have no idea what you're talking
about.

Berti e