Explanation of Chart supplement

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piccolo789

Filing Flight Plan
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piccolo789
I attached the screenshot and colored confusing parts. What's the meaning of 1) 9001 2) A5 3) (VH)(H) VORTACW?
1765249160942.png
 
9001 is the TakeOff Run Area, TODA is takeoff Distance Available, LDA is landing distance available, ASDA is Accellerate Stop Distance Available. In this case it tells you that you have 9001 available for the takeoff roll. See this graphic:
Declared%20Distance%20for%20Runway%20Analysis%20Depiction.jpg


A5 the type of lighting. This means Medium Intensity Approach Lighting System (See page 132 of the Aeronautical chart users guide). The little dot at the top of the circle means that there are sequenced flashers (rabbit lights). https://aeronav.faa.gov/user_guide/cug-complete_20250612.pdf

The VH and H explain the standard service volume of that VORTAC. The (H) is the old volumes desigantion, the (VH) is the newer style. See 1-1-8 in the AIM.
 
It can be fun to learn from group discussions; I never would have looked some of this stuff up, but a few minutes of chatting here, I learned!
Keep the questions and answers flowing; if it annoys a few, maybe they can ignore these threads.
 
Let'sgoflying! said:
It can be fun to learn from group discussions; I never would have looked some of this stuff up, but a few minutes of chatting here, I learned!
Keep the questions and answers flowing; if it annoys a few, maybe they can ignore these threads.
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I don't think anyone here gets "annoyed" by questions. OTOH, I do think "this is all explained in official material you should know how to use" is a legitimate answer. Y'know, teaching how to fish kind of stuff. Or, do you think learning that the answer to a question is contained in the same material that led to the the question is a bad thing?
 
Agreed, questions (and answers) potentially benefit not just an OP.

[off-topic observation]:
… when PoA members spend time to lookup/provide answers, and/or explain where to find answers, it’s curious why so often, an OP doesn’t acknowledge follow-up discussion efforts with “thanks”.

Maybe there’s a generation which perceives info posted on a forum (a discussion, by humans) the same as an AI response … where a ‘thanks’ isn’t necessary or appropriate? (not even to click Like).

Thanks for the legend Mark, appreciated!
 
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MikeNY said:
… when PoA members spend time to lookup/provide answers, and/or explain where to find answers, it’s curious why so often, an OP doesn’t acknowledge follow-up discussion efforts with “thanks”.
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I've even seen that with private messages.

But sometimes it's just someone who asks a question and doesn't even check to see if there was an answer.

In this one I wonder. Four posts for four questions and crickets after that.
 
Seems like this is one area where EFBs, great as they are, may have made things a bit "worse." Various legends, and lots of other reference pages, aren't as readily visible, or even known, as they were in the days of paper charts and little green books. Pretty hard to miss the legend on the front pages of a folded sectional, and usually even a cursory flip-through of the green A/FD books or instrument approach procedures booklet would, at a minimum, at least remind one where that info might be found. Still, that info is in any (most, AFAIK) EFB charts/airport directories somewhere, but not always easy to get to, and I imagine some pilots never see those "pages."
 
The Chart Supplement is a great resource full of useful information, but it’s so condensed that you really need to know the symbols and abbreviations to get the most out of it. I brought up in another thread that a lot of new pilots don’t seem very familiar with sectional symbology or the Chart Supplement, but that comment received a lot of pushback, even ridiculing me for advocating for paper charts (which I wasn't). Most people said that since ForeFlight explains everything, there’s no real need to learn the “old” stuff anymore.
 
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midlifeflyer said:
I don't think anyone here gets "annoyed" by questions.
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Oh- well, maybe I'm wrong about that. You can never hear intonation in a typed reply, right?

I do vote in favor of open discussion.
And I think that some of the answers we see cause others who were thinking of opening topics for review or discussion to be put off and clam up. To the loss of the community.
 
Jim Carpenter said:
Seems like this is one area where EFBs, great as they are, may have made things a bit "worse." Various legends, and lots of other reference pages, aren't as readily visible, or even known, as they were in the days of paper charts and little green books. Pretty hard to miss the legend on the front pages of a folded sectional, and usually even a cursory flip-through of the green A/FD books or instrument approach procedures booklet would, at a minimum, at least remind one where that info might be found. Still, that info is in any (most, AFAIK) EFB charts/airport directories somewhere, but not always easy to get to, and I imagine some pilots never see those "pages."
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I agree with you and I place the responsibility on us. Those of us who learned on paper should simply know better. CFIs have a responsibility to teach it to those of us who learned or are learning to fly in the EFB age. There's probably a bit of human laziness tossed into the mix as well. Why RTFM when there are people who will read it for you?

Even without specific instruction, I think all it really takes is an understanding that, if there is a publication with pictures and abbreviations, there is also something within the publication that explains them. That doesn't cover all the bases. There is plenty, particularly on charts, that is not covered within the chart or Terminal Procedures legends, which is why we have a Chart Users Guide. But "there's probably a legend here somewhere" is a heck of a good start.
 
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The OP has 4 posts, three of which are new threads asking unusual questions, and only one is a response within one of those threads. Apparently is not interested in any follow-up or further discussion.

I say the questions are unusual, because to me, they really are. For instance, in this thread, he (?) asks about the 9001, not the more obvious general question about the heading for that section - "what is runway declared distance information?" or "What does TODA mean?" Which would be normal questions, most pilots don't deal with this stuff until they start flying larger airplanes.

He asked about the A5 symbol, but nothing else - not the P, the A, the dots down the center of one of the runways, or anything else on the airport diagram. In other words, didn't ask "where can I find the list of symbols for the airport diagram?"

In one of the other threads, he asked about light gun signals but didn't indicate WHY he thought the diagram was incorrect (which it wasn't).

In the other thread, he asked about things like "LCL" (local time) on the display of a G1000 included in a textbook figure, when the textbook figure and caption was certainly put there to show something else on the screen. And then there was a question about a knob on the Garmin 430, but again it was a figure from a textbook that was certainly discussing some other aspect of the display. Note that the questions were not "I fly with a G1000 (or 430), what does this thing mean?" Rather, they were "I saw this figure in a book discussing something else but am curious what this random unrelated thing is in the picture for an avionics system I may or may not ever see".

OP, we welcome your participation here, but it helps if you provide a little more background or information when you ask your questions. What are you flying? Where are you in your training?
 
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RussR said:
The OP has 4 posts, three of which are new threads asking unusual questions, and only one is a response within one of those threads. Apparently is not interested in any follow-up or further discussion.

I say the questions are unusual, because to me, they really are. For instance, in this thread, he (?) asks about the 9001, not the more obvious general question about the heading for that section - "what is runway declared distance information?" or "What does TODA mean?" Which would be normal questions, most pilots don't deal with this stuff until they start flying larger airplanes.

He asked about the A5 symbol, but nothing else - not the P, the A, the dots down the center of one of the runways, or anything else on the airport diagram. In other words, didn't ask "where can I find the list of symbols for the airport diagram?"

In one of the other threads, he asked about light gun signals but didn't indicate WHY he thought the diagram was incorrect (which it wasn't).

In the other thread, he asked about things like "LCL" (local time) on the display of a G1000 included in a textbook figure, when the textbook figure and caption was certainly put there to show something else on the screen. And then there was a question about a knob on the Garmin 430, but again it was a figure from a textbook that was certainly discussing some other aspect of the display. Note that the questions were not "I fly with a G1000 (or 430), what does this thing mean?" Rather, they were "I saw this figure in a book discussing something else but am curious what this random unrelated thing is in the picture for an avionics system I may or may not ever see".

OP, we welcome your participation here, but it helps if you provide a little more background or information when you ask your questions. What are you flying? Where are you in your training?
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Ah yes, it seemed like no one else thought it was strange he took a picture of an example of a glass panel from a textbook and wanted to know what every tiny little detail meant
 
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