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altimeter setting subscale;
d. Turn Coordinator (TC) – An electrically driven instrument, powered whenever the
MASTER SWITCH is selected ON. This instrument provides rate of turn
indications, with the ball providing indication of slip or skid. L and R turn indices
indicate a standard rate one turn (3º / sec);
e. Directional Indicator (DI) – Vacuum operated with rotating compass card;
f. Vertical Speed Indicator (VSI) - Instrument is actuated by static pressure changes
and depicts rate of climb or descent in feet per min.
g. Magnetic Compass – A rotating card magnetic compass is mounted to the centre
of the front windscreen.
Figure 1-57 Magnetic Compass