RADIO MAGNETIC INDICATOR (RMI)
Reference: T34C NATOPS Manual, Chapter 19, "Radio Magnetic Indicator (332C10B)," NIFM
Part III, "Radio Magnetic Indicator (RMI)."
The Radio Magnetic Indicator (RMI) is the primary navigational instrument in the aircraft. It
displays aircraft heading in addition to magnetic bearing information from radio stations through the
use of pointers referred to as the VOR and TACAN/GPS (depending on mode selected on GPS
NAV/GPS button) needles (Figure 46).
Figure 46 Radio Magnetic Indicator (RMI)
COURSE DEVIATION INDICATOR (CDI)
Reference: T34C NATOPS, Chapter 19, Course Deviation Indicator (IND350); NIFM Part
III, "Course Indicator."
The IND350 is the secondary navigational instrument in the VOR/TACAN system and serves
as an aid in interpreting the RMI. Its components consist of a Course Deviation Indicator (CDI),
a TOFROM indicator, an OBS (Omni Bearing Selector), and a VOR/TACAN selector switch.
INTRODUCTION TO RADIO INSTRUMENTS 4-9