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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15
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1answer
2k views

What is that invisible bump in the air called that occurs after completing a 360 degree turn?

Does that bump you feel after completing a level 360 degree turn in an airplane have a proper name? I've heard it called an "attaboy bump", but obviously thats not a proper name. My understanding is ...
18
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6answers
4k views

What would be a technical or slang term for 'in the air'?

I'm writing a sci-fi story involving aircraft and space craft. I'm struggling to get the terminology right for referring to a pilot being 'in the air' either on a mission or a training exercise. I ...
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1answer
99 views

Aviation terminology for 'in the field' [duplicate]

I'm writing a sci-fi story involving aircraft and space craft. I'm struggling to get the terminology right for referring to a pilot being 'in the field' either on a mission or a training exercise. I ...
18
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5answers
6k views

Is there a difference between “aerobatic” and “acrobatic” flight?

I hear and read both the terms "aerobatic" and "acrobatic" used to describe the more extreme maneuvers such as spins, rolls, loops and more. My questions is about the terms themselves. It seems that ...
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3answers
4k views

What is the exact definition of Taxi Time?

I found some definitions on the web, but they weren't same. Some resources mentioned it is sum of the times the aircraft is moving on the ground with its own engines. Some defined it as the time ...
10
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2answers
1k views

Is there a name for the area for aircraft to back track near the runway threshold?

Some airports have an area, on the threshold, used to back track the aircraft, mainly because of the their wingspan, they look like a half wheel. Is there any designation for this area?
2
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1answer
966 views

What is situational awareness and why is it important?

What is the definition of situational awareness? In which phase of flight is situational awareness the lowest, and why?
0
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1answer
2k 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 ...
6
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1answer
308 views

Who first coined the phrase “aviate, navigate, communicate”?

The phrase "aviate, navigate, communicate" describes the priorities of tasks for a pilot. It is applicable to a wide variety of situations, including military scenarios and emergencies. Who first ...
11
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2answers
2k views

What is the origin for “squawk” having two different meanings in aviation?

In Aviation, a "Squawk code" is a common term for a "Transponder Code". "Squawk 2345 and Ident" But it is also commonly a way to report problems with an airplane. "After I landed, I Squawk'd the ...
2
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1answer
736 views

What are these “F,S,O” characteristic speeds?

I am leaning for an avionics exam and I encountered a question asking for the meaning of F, S and O . They appear to be "Characteristic speeds", which are calculated by the flight management system (...
0
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2answers
412 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 ...
8
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1answer
706 views

Why is an ATC operational error called a “deal”?

Air Traffic Controllers who lose separation between aircraft call that event a "deal". Why? When the Conflict Alert function was added to the computer system, it reported conflicts to the area ...
14
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1answer
4k views

What, exactly, is a “co-pilot”?

When I speak of a co-worker, or a co-driver, I'm speaking of a mutual relationship and status (that's simply how the prefix co works in normal English) and I'm pretty sure it's what most people mean ...
16
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3answers
32k views

What is the difference between GPS, GNSS and RNAV?

I would like to know the fundamental difference between GPS, GNSS and RNAV. How are they related each other? Are all/some of them synonyms?
7
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3answers
668 views

What exactly does it mean, that plane has diverted due to the needs of a passenger?

Twitter account for Flightradar24 has reported twice in past 24 hours about two different British Airways flights that has diverted their original route "due to the needs of a passenger" (here and ...
0
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0answers
167 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: ...
16
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1answer
6k views

What is the difference between fail-safe and fail-soft?

I have heard the following terms related to safe system design but I cannot really see a difference between fail-safe and fail-soft (graceful degradation). To get a common understanding I will just ...
3
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1answer
425 views

What does “redatum” means?

I was doing a question about a fully hydraulic elevator and it's position in relation to the trimmable horizontal stabiliser and the explanation of the answer contained the word "redatum". What does ...
10
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1answer
424 views

How long has the term “situational awareness” been used in aviation?

I was puzzled to read (Wikipedia article on situational awareness) that: The term can be traced to World War I, where it was recognized as a crucial skill for crews in military aircraft. but in ...
5
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3answers
11k views

What is a flat rated engine?

I've heard that a "Flat Rated Engine" is an engine where the power is reduced to keep the internal temperature within certain limits when the ambient temperature is above a certain point. Is that ...
1
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2answers
2k views

What is the difference between a nautical mile and a statute mile? And what is a knot?

What is the difference between a "nautical mile" and a "statute mile?" And what is a "knot?"
4
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2answers
261 views

How to decide which aerodromes should have Electronic Terrain and Obstacle Data?

What is the meaning of "aerodrome that is regularly used in international civil aviation"? Is there any explanation or reference material in support of Aeronautical Information System (AIS)? I found ...
2
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1answer
145 views

Where to find comprehensive description of Special Use Airspaces (SUAs)? [closed]

Can you suggest me some document or website where I can learn about Special Use Airspaces? My goal is to understand the following topics: SUA definition Types of SUAs SUA pubblication SUA creation ...
5
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1answer
4k views

What defines a landing gear bogie?

(Wikipedia) A Boeing 737 main landing gear arrangement. What defines a landing gear bogie (truck)? In its airframe maintenance handbook, the FAA defines it as: When more than two wheels are ...
9
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2answers
5k views

Where does the term 'steam cockpit' come from?

Why are traditional style cockpits with gauges called 'steam cockpits'? Do the instruments actually run on steam?
4
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3answers
1k views

What is the section of the fuselage below the wings called?

Is there a specific name for the protruding section of fuselage beneath the wings? Im talking about the area where the landing gear bay often is. In the photo it's where the red Emirates logo is ...
0
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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 ...
5
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1answer
302 views

Has the FAA moved to change its use of gender-specific words like airman?

Last year, the United States Navy was ordered to review all of its job titles related to gender reference, e.g. yeoman, fireman and seaman. The Air Force has initiatives to fully integrate women in ...
5
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2answers
2k views

Should people flying UAVs be called “Operators” or “Pilots”?

I'm wondering if there is any formal/official definition* pertaining to the title given to people controlling Unmanned Aerial Vehicles? Are they "more" correctly titled Operators or Pilots? *As set ...
6
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3answers
2k views

How would one define or explain the term “unloading the controls?”

I've heard people say "unload the controls" or "unload the wing/propeller." What does this mean exactly? It is usually followed by releasing back pressure on the elevators or starting/ending a turn.
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1answer
322 views

If an aircraft cannot fly above 300ft, is it an aircraft?

I saw a question here that inspired one of my own. If an larger, person carrying aircraft, say some sort of hovercraft, could not fly above 300 ft would it be allowed to fly? Here in Australia, 300ft ...
6
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1answer
3k views

In Raymer diagram “Take off parameter- Take off distance”, what is the difference among “balanced field length”, “over 50 ft”, “ground roll”?

Raymer in his book suggests a method to find wing loading W/S (for example we consider jet with 2 engines) (starting from specific thrust $\frac TW$, $CL_{to}$, density/reference density etc.). In ...
4
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1answer
11k views

What's the difference between FMS and FMC?

What's the difference between FMS (Flight management System), and FMC (Flight management computer)? Can the flight management computer be thought of as what's manipulating the input information from ...
7
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3answers
713 views

What is the best word for lateral translational movement in a rotorcraft?

I'm talking about movement left and right without changing attitude. This is a motion that can be done with a quadcopter and to a limited extent a helicopter (I presume). On a helicopter a left/...
11
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4answers
6k views

What is the definition of taxiing?

According to Wikipedia the definition of taxiing is: the movement of the aircraft on the ground under its own power [however] push-back is not considered taxiing In contrast, Eurocontrol seems ...
13
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2answers
4k views

What does the word “boot” mean?

I found this word "boot" in one book. The chapter was connected with ICING operations, and I found this word with little explanation: A tube bonded to a surface, e.g. wing edge. When pressurized ...
5
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3answers
6k views

What is the difference between the words “airlines” and “airways” semantically?

I wonder what the difference between the words "airlines" and "airways" is. Do you have any information on this? I am asking this question to find out why some air carriers use "airlines" while ...
2
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1answer
789 views

Is “passenger loading bridge” a synonym to “contact stand”?

In a master plan of an international airport, which is already approved by the client, I face some confusion between the terminology of the PLB and the contact stand. Sometimes they're mentioned just ...
3
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1answer
405 views

What is the meaning of T/O Thrust => TRQ / N1 in a flight log?

I work at a software company which builds record-keeping software for aviation. What is the meaning of TRQ / N1 in a flight log, under a ...
2
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1answer
2k views

What is a GDS (in the context of the airline industry)?

I have been looking at this article and throughout the article they mention GDS's but do not explain the terminology. Does somebody know what they are talking about - For e.g. - Three GDSs emerge ...
8
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4answers
2k views

What is flight inspection, as provided by Cobham Aviation Services?

At about midnight, I saw a small plane (a Diamond Twin Star) take off from Heathrow, on flightradar24. It then proceeded to fly in irregular loops around North London, at low altitude, 1700ft. The ...
6
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1answer
1k views

What are the correct names for the two faces of an airfoil?

Usual case When representing a wing airfoil, often: The lift is positive The upper surface is the one with low pressure. So the airfoil faces can just be called upper and lower surfaces and we ...
3
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2answers
431 views

Is there anything in any airport called a “warm apron”?

I heard a pilot said they are located at big airports like LAX. But I couldn't find any information about it.
3
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1answer
124 views

What is the name of the figure consisting of a slow revolution around longitudinal axis? [duplicate]

"An airplane performing one slow revolution around its longitudinal axis is performing one of these..." This was a clue on Jeopardy today. The contestant responded with, "What is a barrel roll?" ...
15
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1answer
2k views

When buying airliners what is the difference between “orders”, “options” and “purchase rights”?

I've often seen announcements by aircraft manufacturers or operators along these lines "Qantas announced today that they will buy 10 A380's and have taken options on another 10". What does it mean to ...
2
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4answers
31k views

What is the true meaning of the word “wilco” when used on the radio? What is its origin?

Pilots often learn to use the word "wilco" on the radio through contextual interpretation. During my experience as a pilot communicating on the radio I have often observed pilots using the word "wilco"...
0
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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 ...
8
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2answers
1k views

What is the name for the Mitsubishi A6M Zero's one-piece wing/fuselage?

The Wikipedia article on Mitsubishi A6M Zero fighter cites an article from Life magazine published on Nov 4, 1942: The Zero's fuselage and wings were constructed in one piece, unlike the American ...
3
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1answer
175 views

What is that term to describe the wing motion range?

What is that term naming the range of motion of the wings when on the ground (hanging/drooping) then bends upwards during flight?