Greg wrote:
In primary and supporting method of attitude instrument flying, which
do you consider the primary instrument for bank in the partial panel
situation (loss of both attitude indicator and heading indicator)?
Turn coordinator or magnetic compass?

The magnetic compass isn't worth **** in a turn. It should only be
used as a heading reference in straight-and-level flight.

If you've got a good ADF you can tune in an AM broadcast station and
that makes a dandy DG replacement. Pick a station that's far enough
away that azimuth to the station is approximately constant but close
enough that you get a good strong signal. Not that most planes have
ADFs these days, and the ones that do exist tend to be pretty cruddy.

With practice, you can fly a decent ILS with just a TC, ASI, and CDI.
No AI, no DG, not even a wet compass.