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.

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2answers
131 views

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 [...
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1answer
147 views

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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1answer
136 views

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? ...
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1answer
76 views

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.
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4answers
459 views

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/ ...
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4answers
199 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, ...
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2answers
67 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
2
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1answer
216 views

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 ...
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0answers
33 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 ...
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2answers
525 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 ...
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1answer
78 views

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 ...
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1answer
565 views

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) (...
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0answers
109 views

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 ...
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1answer
1k views

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 ...
3
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1answer
321 views

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 ...