NAV Systems Flashcards
Where is the ARN-153 TACAN R/T located?
Underneath the companionway
How many antennas are associated with the ARN-147 VOR/ILS/MB system?
3
How many channels does the ARN-153 TACAN have?
252 (126-x and 126-y)
What are SA/AS codes?
Selective availability and anti spoofing
How would you select the SA/AS codes for use on the GPS?
Changing “MIXED” to “ALL Y”
Where is the ARN-153 TACAN R/T antenna located?
Underside of the aircraft AFT and right of the boomerang (VOR/ILS) antenna
Where is the ARN-149 ADF antenna located?
Underside of the aircraft, centered, STA 190
Where are the EGIs located?
Bottom of the avionics closet
What information is provided by the EGIs?
(4 things)
Heading, velocity, position, and estimate error
How many linear and angular accelerometers are associated with each Inertial Navigation System?
-3 angular and 3 linear
What information does the TACAN radio provide?
(5 things)
-slant range distance
- relative bearing
- course deviation
-to/from
-audio identification information
What is the operating range to an air-to-ground TACAN station for the TACAN radio?
390NM
What is the operating range for an air-to-air TACAN station for the TACAN radio
200NM
What are the four modes the TACAN can operate in?
R, TR, AAR, AATR
The DH (decision height) field value on the VOR/ILS Control page is in MSL or AGL?
MSL
What are the three alignment modes that can be selected to initialize the inertial navigation units (INUs)?
GC ALN
SH ALN
SHIP
What four items of information are available on the RUNWAY DATA page on the CDU?
-RWY Designation
-RWY length and width
-RWY TDZE
How many ADF Presets are available?
6
What CDU function key is used to access NAV RADIOS page
CNI
The VOR can be manually tuned by entering the new frequency in the scratchpad and selecting what key
RS1
What is the default alignment mode for the INU’s
GC ALN
The last VOR frequency can be recalled by entering zero in the scratchpad and selecting what key
RS1
What is the maximum number of Data Search Items that can be displayed on the map at one time
20
Which TACAN mode displays bearing and DME from a ground TACAN station
TR
Which TACAN mode displays distance from another aircraft
AATR
What CDU page is accessed to initialize the system
Start Page 2/2
With the TACAN in AATR Mode, what info will be received from an interrogated CH-47F
Distance only
What CDU page is used to change satellite constellation type between Mixed and All Y for GPS
GPS 1 (2) Navigation Page
Which CDU function key is selected to perform a search for closest airports to current position
Data Search
When tuning the VOR radio, what indication on the MFD does the pilot receive
Searching Annunciator
To recall the last manually tuned VOR freq you must enter a 0 and select which bezel key
LS1
On the Runway Data page, what key puts the position of the runway approach end into the scratchpad
LS
VOR Freq range
108.00-117.95
ALL Y protects against what
spoofing
