Ch 3 Navigation Instruments

Question 1

Radio Magnetic Indicator (RMI)

Answer 1

Consists of rotating compass card and two bearing pointers a head (which point towards a VHF omni directional range (VOR) or TACAN) and the tail indicates the current radial. Don’t function with instrument landing system (ILS) signals

Question 2

Course Indicator (CI)

Answer 2

Independent of RMI and displays desired course heading/position relative to VOR/TACAN

Question 3

TO-FROM indicator

Answer 3

indicates whether the course selected, if correctly intercepted/ flown will take you to/from station. Also when passing through perpendicular line from station indicator flips

Question 4

Course Deviation Indicator (CDI)

Answer 4

Deviation from desired course selected, each dot represents 5 degrees off, full scale is more than 10 degrees off

Question 5

ILS display

Answer 5

Consists of a localizer and glide slope

Question 6

Range Indicator

Answer 6

-displays slant range in NM to DME transponder, can use as horizontal distance except with close to station

Question 7

Flight director

Answer 7

Provides pitch/bank attitudes of aircraft

Question 8

Attitude Director Indicator (ADI)

Answer 8

attitude, rate of turn/ slip, glide slope, command bars, attitude/glide slope/course warning flags indications

Question 9

Horizontal Situation Indicator (HSI)

Answer 9

combines heading, RMI, CI, range indicator

Question 10

Full-scale deflection on the course deviation scale differs with the width of the localizer course

Answer 10

• depends on width of localizer course (up to 6 degrees)

- if 5 degrees full deflection is 2.5 and one dot is 1.25 degrees off

Question 11

Appearance of the course or glide slope warning flags indicates that the course or glide slope signal strength is not sufficient. Absence of the identifier indicates the signal is

Answer 11

unreliable

Question 12

T/F If the GSP is above or below center the glide slope is above or below the aircraft respectively.

Answer 12

True

Question 13

Flight Director Heading Mode

Answer 13

The flight director will sync the command bars to the heading marker to keep the aircraft on the selected heading.

Question 14

Flight Director ILS Intercept Mode

Answer 14

The flight director will cause the command bars to steer the aircraft onto and maintain the ILS course selected in the navigation radios.

Question 15

Flight Director maximum bank angle commanded is usually

Answer 15

25-35 degrees

Question 16

Maximum intercept angle commanded is normally about

Answer 16

45 degrees

Question 17

T/F ILS Final Approach Mode. Adds pitch inputs to the command bars to fly to and maintain the glideslope. In this mode, commanded bank angle is normally limited to a maximum of 15° and maximum pitch attitude commanded is 10° to 17°, depending on the system.

Answer 17

True