Questions tagged [aeronautical-charts]
For questions relating to navigation charts, but not performance charts.
342
questions
9
votes
1
answer
1k
views
Are ICAO airport codes starting with X-ray valid?
The Wikipedia page on ICAO airport codes currently states that
ICAO airport codes do not begin with I or J or X or Q
and later
In Russia, Latin letter X, or its Morse/Baudot Cyrillic equivalent Ь, ...
- 93
1
vote
1
answer
90
views
Why is the highest point value (6681') lower than the contour interval value of 7000'?
Why is the highest point value (6681') lower than the contour interval value of 7000'? As seen on the chart, the orange areas represent 7000 feet, but there is an obstacle with an altitude lower than ...
- 2,195
1
vote
2
answers
87
views
FAA Approach and Landing (AL) numbers
I was trying to get a list of all ILS approaches in the US, which brought me to the FAA Aeronautical Product Release API to retrieve all the DTPP (Digital-Terminal Procedures Publication) as five zip ...
- 113
1
vote
1
answer
93
views
What do these items on a Jeppesen VOR approach chart mean?
I have some questions about certain VOR approach charts. I find some details confusing on the following chart for SLTJ VOR C Rwy 13:
What does "state" mean? It's in bold in the minima ...
- 11
12
votes
1
answer
724
views
What is "Accident" on a VFR sectional?
Seen on the map just north of 2G4 (Garrett Country Airport) is a dot labeled "Accident".
(Direct link to map.)
I never noticed something like that before, and didn't fly close enough to ...
- 5,132
0
votes
1
answer
88
views
Why are there different bracket shapes to Class D airspace?
A Class D airspace ceiling is typically depicted with a two digit number surrounded by four brackets depicted below.
Why do some Class D airspaces have the same four brackets, with four additional ...
7
votes
2
answers
2k
views
What does "NON-COMPLIANCE WITH FAR 157" mean for an airport?
I was looking up the airport in Gorham, New Hampshire (2G8) on SkyVector and noticed it had a line that said "NON-COMPLIANCE WITH FAR 157". I know FAR 157 concerns what is needed to build, ...
- 433
2
votes
2
answers
126
views
How can airport elevation be different in various approach charts?
If you see KRDM RNAV Y RWY 29 - airport elevation is 3080.
But in RNAV Z RWY 29 - airport elevation is 3082.
How it can be different for approaches to the same airport and runway?
- 21
1
vote
1
answer
179
views
I have looked on the Low altitude IFR chart for this information and can not find it listed
Inside the communications box after the name, what does (H), (H)(H), (L)(H), mean?
5
votes
1
answer
399
views
What does "MOA excluded" when Restricted Airspace active mean?
Looking at the VFR chart at 453507N1194903W there is a note:
"BOARDMAN & BOARDMAN LOW MOAS EXCLUDED WHEN R-5701 & R-5706 ARE ACTIVE"
What is being excluded here? The military's use ...
- 1,313
1
vote
1
answer
120
views
Philippines - What is this symbol on a world aeronautical chart mean?
Need help regarding this symbol. I've checked the legend and this symbol isn't there. Thank you
- 81
-1
votes
1
answer
106
views
Can you explain what the 2nd caution on the LTAF VOR A chart means?
Can you explain what the 2nd caution on the LTAF VOR A chart means? "2. IF THE AIRCRAFT WILL MAKE A CIRCLING APPROACH VIA RIGHT TURN, ATC SHALL BE INFORMED AS SOON AS POSSIBLE." What exactly ...
- 2,195
2
votes
2
answers
156
views
Why do some charts not have the "TRACKs are MAG" notification, while others do?
Why do some charts not have the "TRACKs are MAG" notification, while others do? As seen in the examples I gave below, some charts have "BRGs and TRACKs are MAG" notifications, ...
- 2,195
0
votes
1
answer
78
views
Why are the height values different although the altitude values in the "straight-in approach" and "circling" minimums are the same?
Why are the height values different although the altitude values in the "straight-in approach" and "circling" minimums are the same? For Adana airport, the minimum altitudes of the ...
- 2,195
1
vote
2
answers
251
views
How can a surface created with asphalt be considered "Rigid" and not "Flexible"? Isn't concrete that is rigid and asphalt that is flexible?
How can a surface created with asphalt be considered "Rigid" and not "Flexible"? Isn't concrete that is rigid and asphalt that is flexible? This was also stated in the answer to ...
- 2,195
1
vote
1
answer
126
views
Why are the symbols of the markings on the ground given differently on two different charts of the same AIP?
Why are the symbols of the signs on the ground given differently on two different charts of the same AIP? As can be seen in the images below, the ground markings in the same region on the airport ...
- 2,195
7
votes
1
answer
1k
views
What do the white circle and black arrow on the airport chart mean? (VOR identifier and frequency written)
What do the white circle and black arrow on the airport chart mean? (VOR identifier and frequency written) There are 2 on the chart. Also, is there a document where I can find the meanings of the ...
- 2,195
7
votes
1
answer
524
views
What do the "GP 330.5" and "CH24X" I marked in the picture below mean?
What do the "GP 330.5" and "CH24X" I marked in the picture below mean? I think 330.5 is localizer independent glidepath frequency but I have no idea what CH24X means. Does anyone ...
- 2,195
3
votes
1
answer
434
views
Are the runway directions given in the table relative to magnetic north or true north? (True or Magnetic?)
Are the runway directions given in the table relative to magnetic north or true north? (True or Magnetic?) How can I understand this? Is there a specific case for charts?
- 2,195
2
votes
1
answer
159
views
Why is the magnetic variation value from 1999, although the AIP Charts in my country are up to date?
Why is the magnetic variation value from 1999, although the AIP Charts in my country are up to date? In all of the chart examples I shared below, the variation value is 3.2°E and belongs to 1999. ...
- 2,195
3
votes
4
answers
1k
views
Why is Cathay Pacific flight path so long? [duplicate]
I was looking at flightradar24 and found this:
Which shows a flight from Vancouver, Canada to Hong Kong by Qatar Executive.
On the other hand I found this:
A flight from New York to Hong Kong by ...
- 225
3
votes
1
answer
374
views
What's the difference between these two VOR cones in Jeppesen Approach Charts' profile view?
Both are ILS approaches. In Jeppesen introduction there's a similar icon which is explained as "A "broken" navaid or fix symbol indicates that it does not fall directly in line with ...
- 33
1
vote
2
answers
191
views
Changes to aeronautical charts
Are there notes on changes to aeronautical charts available anywhere?
For example, when a new sectional comes out, many changes are charted. Is there any place I could find the specific changes that ...
- 15.5k
2
votes
1
answer
80
views
How precise is the placement of airports on VFR sectional charts?
Looking at the August 10, 2023 edition of the San Francisco VFR sectional, M45's displayed name is being changed from ALPINE CO to ALPINE COUNTY:
More ambitiously, it is apparently going to be moved ...
- 15.5k
3
votes
1
answer
375
views
What is the dots before Missed App Point on the Jeppesen VOR Chart?
What is the dots before Missed App Point on the Jeppesen VOR Chart ? and also why the pull up vector before the missed approach point ? Thanks.
- 101
4
votes
1
answer
133
views
Why are there two Decision Altitudes at LTBR Bursa Yenişehir?
Hello,
As you can see, at the missed approach point, the chart gives 984 feet. On the other hand, The Decision altitude given as 959 feet. What is the reason ? Thanks.
- 101
3
votes
1
answer
335
views
Example of where Class Echo abuts class Golf
Aeronautical Chart Users' Guide shows an example of a fuzzy magenta line bordering with class Golf airspace. I tried to look but couldn't find any examples on the charts. If you have seen it, please ...
- 63
2
votes
1
answer
182
views
Does the Garmin G-1000 contain a database of airport information?
Some modern avionics contain airport information similar to what is published on charts and in the FAA's Airport/Facilities Directory.
Does the G-1000 keep airport information in a database that can ...
- 26.1k
8
votes
2
answers
1k
views
Why is there a blue square on top of the 2Q9 airport symbol?
What is up with the sectional symbol for Dyer (2Q9)? Why is there a blue square on top of it?
- 1,559
4
votes
1
answer
174
views
Why some airspaces don't have high-altitude IFR airways?
I noticed on enroute charts that some airspaces (mainly over Balnkans - e.g. LWSS, LYBA, LDZO, LOVV etc) do not have high-altitude IFR airways. Unfortunately searching online didn't reveal much. What ...
3
votes
2
answers
207
views
Where is the MAP for the LDA RWY 25 at Eagle County Regional
The MAP for the LDA with GS is the decision altitude. The LDA without GS mins does not have a FAF to MAP distance, nor is timing given.
- 886
3
votes
1
answer
292
views
Although this approach is suitable for straight-in landing minimums in every sense, why are circle-to-land minimums given?
Although this approach is suitable for straight-in landing in every sense, why are circle-to-land minimums given? There are no obstructions, the gradient in the descent path is not steep and the ...
- 2,195
1
vote
1
answer
89
views
Why is there a FAF database identifier with the code [FS044] even though it says no FAF and why is there an RNAV fix symbol for that point?
Why is there a FAF database identifier with the code [FS044] even though it says no FAF and why is there an RNAV fix symbol for that point? The code [FS044] means FAF for the approach (What is the ...
- 2,195
0
votes
0
answers
165
views
Which values do "PANS-OPS" and "Standard" labels represent in the minimum table seperately? (minimums, circle-to-land values, aircraft categories...)
What is the difference between these two labels and which values do they represent in the minimum table exactly? ("PANS-OPS" and "Standard") What are the values that Standard and ...
- 2,195
0
votes
1
answer
77
views
What values will I use for circle-to-land in categories A and B? RVR 1800m or RVR 2200m?
What values will I use for circle-to-land in categories A and B? RVR 1800m or RVR 2200m? And if I am using them, why are the visibility values such as 1500m-1600m determined?
- 2,195
0
votes
1
answer
110
views
What is meant by the sentence, "It relates to aircraft handling speeds and circling area development."?
What exactly is meant by the sentence:
It relates to aircraft handling speeds and circling area development.
For which values does the phrase "aircraft handling speeds and circling area ...
- 2,195
1
vote
1
answer
88
views
What exactly does the expression "higher straight-in minimums" describe as "higher" relative to which value?
What does the description of note 1 that I marked in the image mean? What exactly does the expression "higher straight-in minimums" describe as "higher" relative to which value? ...
- 2,195
0
votes
1
answer
185
views
Although the missed approach point in the profile view is 1.1 DME-400 feet, the GS out reference altitude is given as 410 feet in 1.0 DME. HOW?
Although the missed approach point in the profile view is 1.1 DME-400 feet, the GS out reference altitude is given as 410 feet in 1.0 DME. HOW?!
Based on GS out reference altitudes, we are expected ...
- 2,195
1
vote
1
answer
99
views
Why don't the Altitude-DME values in the approach profile match the Groundspeed-FPM values in the conversion table?
Why don't the Altitude-DME values in the approach profile match the Groundspeed-FPM values in the conversion table?
When the calculation is made with the values given in the conversion table, the ...
- 2,195
2
votes
1
answer
98
views
How can I find the type of CRL VOR at LTBU Corlu Ataturk airport? (Terminal,Low,High)
How can I find the type of CRL VOR at LTBU Corlu Ataturk airport? (Terminal, Low, High) Although there are reference documents for the FAA, I could not find a document for ICAO with the types of VOR ...
- 2,195
0
votes
1
answer
677
views
What is the distinct difference between "Std" and "Standard" markings on Jeppesen charts?
What is the difference between "Std" and "Standard" markings on Jeppesen charts? I read the descriptions, but I can't make a clear distinction. Because both EASA and ICAO represent ...
- 2,195
-1
votes
1
answer
131
views
Why aren't the left and right papi lights written "in-line" in the lighting icons section of the Jeppesen chart?
Why aren't the left and right papi lights written "in-line" in the lighting icons section of the Jeppesen chart? Although there is REIL on other charts, it is written in line. Could this be ...
- 2,195
2
votes
1
answer
147
views
What exactly is the difference between "to","on" and "via" in the missed approach icons section of Jeppesen charts?
What exactly is the difference between "to", "on" and "via" in the Missed approach icons section of Jeppesen charts? Sometimes "on" is used and sometimes "...
- 2,195
3
votes
1
answer
233
views
Why are the altitudes and distances in the profile view different when calculated with the fpm values in the conversion table on Jeppesen charts?
Why are the altitudes and distances in the profile view different when calculated with the fpm values in the conversion table on Jeppesen charts? To put it more simply, I find the distance between ...
- 2,195
2
votes
1
answer
87
views
How can stand numbers 1, 2 and 3 have the coordinates of 07.9 minutes North ins, but stand number 9 have the coordinates of 07.8 minutes North?
How can stand numbers 1, 2 and 3 have the coordinates of 07.9 minutes North ins, but stand number 9 have the coordinates of 07.8 minutes North? As can be seen from the blue line I drew visually, ...
- 2,195
8
votes
1
answer
2k
views
While only RL will be sufficient at night for the aircraft to take off, both RL and RCLM are required to take off during the day. Isn't it illogical?
While only Runway Lights (RL) will be sufficient at night for the aircraft to take off, both RL and Runway Centre Line Markings (RCLM) are required to take off during the day. Isn't it illogical? The ...
- 2,195
0
votes
1
answer
641
views
Which of the arrows in the magnetic variation symbol represents which North value (Magnetic N, True N)?
Which of the arrows in the magnetic variation symbol represents which North value (Magnetic N, True N)? According to my calculations, the arrow pointing to the top should point to magnetic north, ...
- 2,195
0
votes
1
answer
320
views
Getting Minimum Grid Area Altitude from navigational chart
One of the questions for the EASA PPL(A) exam sounds like this:
What is the highest Minimum Grid Area Altitude between BERTA (point 1) and LJLJ (Ljubljana) along route A (yellow)?
And the following ...
- 387
0
votes
2
answers
1k
views
Easy way to calculate distance between two GPS coordinates
I'm studying for my EASA PPL(A) exam, and for some questions for the Navigation exam, I'm requested to calculate the distance between two points, like so:
What is the distance from VOR Brünkendorf (...
- 387
2
votes
1
answer
147
views
Why are the altitudes on an RNP IAC shown on the point while for a conventional approach are parallel to the route? Is there an actual difference?
The RNP approach for LGIR runway 27 has the altitudes on some of the points underscored.
I had the impression (and I'm afraid I'm wrong) that these are "crossing restrictions" and the ...
- 6,980