On May 21, 5:02 pm, "Ken S. Tucker" wrote:

First, does your preflight check list require you ascertain
your mag-comp as functional, and if so, why?
Ken

What does that have to do with compass fluid? Compass checks are
carried out during taxi, particularly for an IFR flight. Attitude
indicator erect and steady; heading indicator set and indicating
during turns; turn coordinator functioning and ball free; compass free
and floating, altimeter set and indicating proper elevation, radios
set. That's about as much as I can remember, since my Instrument
ticket lapsed eight years ago.
Compass is not part of the preflight.

Tell me: what does the compass do in a turn to or from North
versus a turn to or from South? Why does this make it useless for
rolling out on a heading unless we use a timer?

Dan