Questions tagged [terminology]

For questions about words, phrases and definitions that are specific to aviation or used in a different way in aviation.

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715 views

What is altitude above surface / ASFC?

ASFC is an acronym frequently seen in official European publications, e.g. used by the French AIS: Also in some ICAO ones, e.g in Annex 4 (Aeronautical Charts) to the Chicago Convention: The ...
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1answer
94 views

Can we use ECI coordinates for an airplane?

It is taught for navigation systems (like an airplane) on Earth we us ECEF (earth-centered, earth-fixed) and for space systems (like a satellite) we use ECI (earth-centered inertial). But why is ECEF ...
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2answers
169 views

What device in western countries allows ATC to get clearances or search flight plans automatically?

In Korea, there is a device called 'Flight data terminal' which enable air traffic controller to get clearance or search certain flight plans automatically. But I found that there is no 'FDT' in ...
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1answer
112 views

What does “Constant wind condition during flight” mean?

What is constant wind condition during flight? Is it zero wind velocity at an instant (say at level flight) or wind with constant speed, say 20 m/sec (at steady level flight or whatever it is) Which ...
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1answer
206 views

What is the meaning of AFT in airworthiness directives?

What is the meaning of AFT in airworthiness directives?
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1answer
61 views

Is the National Aviation Authority the same as the Civil Aviation Authority?

Are the NAA (National aviation authority) and the CAA (Civil aviation authority) the same organisation? According Wikipedia it looks like they are the same organisation.
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1answer
323 views

Is a pilot responsible for CTAF announcements in this scenario? [closed]

A Cessna 525 Citation Jet is coming in to land and a single-engine Cessna 150 is taking off at a small airport with no ATC. The Cessna 150 stays in continued radio contact and the Cessna 525 Citation ...
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2answers
787 views

Why is there conflicting nomenclature for the 1,000 ft runway markings?

The two thick solid lines on runways at 1,000 ft from the end of the threshold are called "fixed-distance markers" in some documentation, and in others, it is called the "touchdown zone marker". Are ...
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1answer
276 views

Gage or Gauge? Which is correct in the aviation industry? [closed]

Gage or Gauge? Some official aviation sources seem to use the spelling "gage" whether referencing cockpit instruments or aircraft maintenance tooling. However, more broad English sources note that "...
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2answers
160 views

Are there FAA rules about changing an airport name from Municipal to Regional?

Are there any FAA requirements to be met or stipulations for an airport to change its name from Municipal to Regional?
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1answer
3k views

What is the difference between en route and airway?

I am studying about airway now. But there are multiple terms that mean airway like enroute or air route. I don't know exactly what the difference is between them. Airway, en route, air route, air ...
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4answers
179 views

Is falling a mode of flying? [closed]

I frequently observe people arguing (on this very web site) about the question if falling is a mode of flying or not. It appears to me that the majority of people have a strong opinion that it is not. ...
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2answers
417 views

Would an ASTERIX decoder be “radar data processing” or “surveillance data processing”?

I am not an air traffic controller, I am a software engineer. I developed an ASTERIX decoder, the application will just extract all the information and save it in a text file. I am just wondering how ...
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80 views

What does pre/post modification mean in Airbus MPD?

What is the difference between POST MOD (with partial mod i.e SXXXX) and PRE MOD (with partial mod) in the applicability column of an Airbus MPD (Maintenance Planning Document)?
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169 views

What is the ASTERIX terminology for an atomic piece of information?

The ASTERIX standard defines the smallest piece of metadata information: Data Item: The smallest unit of information in each Data Category. And the implementation equivalent: Data Field: ...
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0answers
250 views

Is there a term for the general design used in most modern fighters?

Is there a term that encompasses the overall design of modern fighters (e.g. F-15, F/A-18, F-14, Su-27, Su-30,33,35,37, Mig-29, J-11, etc.), with dual vertical stabilizers, leading edge extensions, ...
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2answers
111 views

How can we define that an Engine or Airplane is ETOPS compliance?

What is the process for obtaining ETOPS certification for an engine or aircraft?
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1answer
51 views

What are the definitions of AFGS and AFCS in guidance systems? [closed]

What are the definitions of AFGS and AFCS in guidance systems?