AT-Basics Chapter 19: En Route IFR
Charts Exam Questions And All Correct
Answers.
En Route Low Altitude Charts - Answer designed to provide aeronautical information for en
route navigation during instrument flight below 18000MSL
How often are en route low altitude charts updated? - Answer every 56 days
What is the general layout of an en route low altitude chart? - Answer -geographical area is
divided with western half on one side and the eastern half on the other
-few are oriented north and south (easier to navigate along the coasts
-each side is of the chart is numbered separately and each contains two distinct areas
What information is included in en route low altitude charts? - Answer -VOR or "Victor"
airways with distances between intersections and NAVAIDs
-NAVAIDS as well as their position, identification, and frequencies
- selected airports
-SUA, Military Training Routes (MTRs), and related info
-limits of controlled airspace
-minimum en route altitudes and minimum obstruction clearance altitudes
How are charts designated/named? - Answer -each chart is numbered and prefaced with an
"L" for low altitude (ex. L-16)
-each "L" chart consists of several panels
-chart scale is listed under the chart number in the corners
Effective Date of the Chart - Answer -dates shown are identical for chart L-1 through L-36
-the "effective" date is the first day when the map can be used for navigation
-the "to" date is when the current one can no longer be used, which is also the scheduled date
for the next version
, -IFR routes (IRs) are listed first in ascending numerical order, followed by VFR routes (VRs) also
in ascending numerical order
-altitude range of each military route is listed next to the route number
Geographical Area Presentation - Answer -map of US showing the area covered by each Low
Altitude Chart (1 through 36)
-major cities depicted to aid user in chart selection
-darkest outlining indicates areas covered by this chart
-a list of all US cities covered by an Area Chart is found in the lower left corner
What major categories are the chart legends divided into? - Answer 1. Airports
2. NAVAIDs
3. Communication Boxes
4. Air Traffic Services and Airspace Information
How are the major section of the legend divided? - Answer subdivided into sections containing
similar types of information
-some information is color-coded for easier identification or to distinguish between facilities or
airspace areas with different operational characteristics
Airports Section of the Legend - Answer -all airports with an IAP and/or a hard-surfaced
runway >=3000ft are depicted
-blue and green indicate airport/seaplane base has an approved IAP published
-blue have an approved DOD IAP and/or DOD RADAR MINIMA published at least in the High
Altitude DOD Flight Information Publication (FLIP)
-brown indicates no published IAP
-civil, military, heliports, and seaplane all shown
What is included for airport data? - Answer -city name
-airport name
-airport location identifier
-field elevation
-lightning availability
Charts Exam Questions And All Correct
Answers.
En Route Low Altitude Charts - Answer designed to provide aeronautical information for en
route navigation during instrument flight below 18000MSL
How often are en route low altitude charts updated? - Answer every 56 days
What is the general layout of an en route low altitude chart? - Answer -geographical area is
divided with western half on one side and the eastern half on the other
-few are oriented north and south (easier to navigate along the coasts
-each side is of the chart is numbered separately and each contains two distinct areas
What information is included in en route low altitude charts? - Answer -VOR or "Victor"
airways with distances between intersections and NAVAIDs
-NAVAIDS as well as their position, identification, and frequencies
- selected airports
-SUA, Military Training Routes (MTRs), and related info
-limits of controlled airspace
-minimum en route altitudes and minimum obstruction clearance altitudes
How are charts designated/named? - Answer -each chart is numbered and prefaced with an
"L" for low altitude (ex. L-16)
-each "L" chart consists of several panels
-chart scale is listed under the chart number in the corners
Effective Date of the Chart - Answer -dates shown are identical for chart L-1 through L-36
-the "effective" date is the first day when the map can be used for navigation
-the "to" date is when the current one can no longer be used, which is also the scheduled date
for the next version
, -IFR routes (IRs) are listed first in ascending numerical order, followed by VFR routes (VRs) also
in ascending numerical order
-altitude range of each military route is listed next to the route number
Geographical Area Presentation - Answer -map of US showing the area covered by each Low
Altitude Chart (1 through 36)
-major cities depicted to aid user in chart selection
-darkest outlining indicates areas covered by this chart
-a list of all US cities covered by an Area Chart is found in the lower left corner
What major categories are the chart legends divided into? - Answer 1. Airports
2. NAVAIDs
3. Communication Boxes
4. Air Traffic Services and Airspace Information
How are the major section of the legend divided? - Answer subdivided into sections containing
similar types of information
-some information is color-coded for easier identification or to distinguish between facilities or
airspace areas with different operational characteristics
Airports Section of the Legend - Answer -all airports with an IAP and/or a hard-surfaced
runway >=3000ft are depicted
-blue and green indicate airport/seaplane base has an approved IAP published
-blue have an approved DOD IAP and/or DOD RADAR MINIMA published at least in the High
Altitude DOD Flight Information Publication (FLIP)
-brown indicates no published IAP
-civil, military, heliports, and seaplane all shown
What is included for airport data? - Answer -city name
-airport name
-airport location identifier
-field elevation
-lightning availability
