Questions tagged [aeronautical-information]
Use this tag when the questions is related to AIS (aeronautical information services) or AIP (aeronautical information publication) as defined by ICAO Chicago Convention.
24
questions
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What is the "Model TA-M" I marked in yellow in the table?
What is the "Model TA-M" I marked in yellow in the table? I think it represents a weather chart, but I don't know if it's an abbreviation or what the explanation is. The table image was ...
- 2,049
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vote
1
answer
99
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What does the expression (For VOR/ILS/MLS, give VAR) in the table mean? Because VAR (magnetic variation) value is not given in the table
What does the expression (For VOR/ILS/MLS, give VAR) in the table mean? Because the VAR (magnetic variation) value is not given in the table. The table image was taken from the AIP Turkey document for ...
- 2,049
3
votes
1
answer
325
views
What do "Secondary power supply/switch-over time" and the corresponding values in the table mean?
What do "Secondary power supply/switch-over time" and the corresponding values in the table mean? I have no idea about the statements I marked in yellow in the table. I would be glad if you ...
- 2,049
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0
answers
72
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What exactly is LDI (Landing Direction Indicator), what does it look like, where should it be, how does it work and how do pilots use it?
What exactly is LDI (Landing Direction Indicator), what does it look like, where should it be, how does it work and how do pilots use it?
- 2,049
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1
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20
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What do "NAC Dynamic" and "ASFT" mean according to the image in the LTAF AIP document?
What do "NAC Dynamic" and "ASFT" mean according to the image in the LTAF AIP document? I found out that ASFT stands for "Airport Surface Friction Tester" but I don't know ...
- 2,049
0
votes
1
answer
40
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What do "AFS" and "LTAFYDYX" mean according to the image in the LTAF AIP document?
What do "AFS" and "LTAFYDYX" mean according to the image in the LTAF AIP document? I found that AFS stands for Aeronautical Fixed Service, but I don't know what it does and the ...
- 2,049
4
votes
1
answer
249
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What is the "Change Notices Available" information on the airport information page of the Jeppesen chart?
What is the "Change Notices Available" information on the airport information page of the Jeppesen chart? For some, none is specified, and sometimes different numbers such as four and ...
- 2,049
2
votes
1
answer
349
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Speed reductions prior to reaching a holding fix
The instrument ACS states that speed reductions for a hold should be made “3 minutes or LESS” from the holding fix.
While the AIM under 5-1-3 j.8(a) says speed reductions should be made “AT LEAST 3 ...
- 21
3
votes
1
answer
108
views
What are RW values in Venule increments?
In US AIP differences from ICAO:
12.3.1.7 d/e/f
U.S. controllers do not give wind speed, visibility, or RVR values in metric terms. RVR values are given in 100- or 200-foot increments while RW values ...
user14897
0
votes
2
answers
500
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Why is more oxygen required at higher altitudes?
Referring to a chapter from Aircraft Maintenance And Repair
Normal air contains approximately
21 percent oxygen, and this provides adequate oxygen for
the human body at lower altitudes. At 34 000 ft [...
- 601
4
votes
1
answer
2k
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What is the difference between a waypoint and a significant point in an airspace?
I know ATS routes are made up of waypoints, but what are Significant Points used for? Is there a difference, or are they really just two names for the same thing?
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votes
1
answer
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How is true airspeed measured?
Now, indicated airspeed is pretty much the dynamic pressure that air is creating.
What about true airspeed? How do the calculations go about factoring out all the wind patterns and finding the speed?
...
- 601
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votes
1
answer
208
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Material alternatives for aircraft leading edge
Are there any material alternatives for the aluminium used on the aircraft leading edge? By alternatives, I mean composite alternatives.
- 601
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4
answers
3k
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Why landing gears still need bungee springs?
While studying landing gear, I came across this term 'bungee spring' to which there was no definitive explanation in text with regards to its usage.
So in the image, you can see for the jury strut/ ...
- 601
2
votes
4
answers
1k
views
Why are true and indicated airspeed different?
So, I understand that True air speed is the motion of aircraft relative to air around it. And, indicated airspeed is speed arising due to dynamic pressure.
Considering a true airspeed of 100 knots, ...
- 601
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vote
2
answers
91
views
When do pilots use NOTAMs? [duplicate]
Usually, pilots will check NOTAMs during pre-flight prep. Are there some situations where they use them in a specific flight phase? If yes, in which case would it be useful?
Thank you
- 103
2
votes
1
answer
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Where to find the parking coordinates of the aircraft in the Apron?
Is it possible to find out the coordinates of where the aircraft park in an the Apron? I mean some sort of list for each terminal or aeronautical chart.
I was thinking about the AIP (Aeronautical ...
- 1,044
4
votes
0
answers
36
views
How to obtain transformation parameters between the Vertical Reference System EGM-96 and a Local Geoid Model? [closed]
Dear Mr/Mrs Geodesy Engineer, Cartographers and AIS Specialists
I have a quite deep question here,
AIP data locations are determined by geographic coordinates /X & Y axis/ and vertical values /Z ...
- 341
6
votes
2
answers
763
views
Why do we see "page intentionally left blank" so often in aviation related documents?
In aviation, we see the phrase "This page is intentionally left blank" quite often in documents like POHs, AIP etc. I can't remember seeing this in any other field. Why is that the case? Why do we see ...
- 3,839
1
vote
1
answer
102
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How are change-overs between regional air traffic patterns communicated? [duplicate]
The airport near me that has two major landing/takeoff patterns part of a large regional air traffic control plan involving other major international airports (SFO/OAK/SJC)
The duplicate-cited ...
- 151
2
votes
1
answer
749
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How to calculate the best climb rate and glide rate?
Considering the lift equation
$$L = C_L \frac{1}{2}\rho v^2 s$$
Given $P$ is 1,000 ft, $\rho$ is 0.002308, and $V$ is the cruise speed of a Piper Archer or 126 knots, we get
$$L = (0.4) (0.002308) (...
- 21
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vote
0
answers
127
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Which countries provide the parameters for their national height reference model in the AIP?
There is a standard in Annex 15 1.2.2.3 "When a geoid model other than the EGM-96 model is used, a description of the model used, including the parameters required for height transformation between ...
- 341
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vote
1
answer
2k
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Where to find information on ILS categories at European airports?
I have a list of airports in Europe and I need to find up-to-date information about ILS categories (I, II, IIIa, IIIb or IIIc) at these airports. Does anyone know where I could find such data ...
- 11
3
votes
1
answer
374
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Which aerodromes are in the scope of ICAO recommendations?
I'm looking for a clarification of how aerodrome characteristics are regulated in a country which has signed the ICAO Chicago Convention (more on Wikipedia). To guide the answer, I'm providing a list ...
- 70.9k