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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1answer
131 views

What are heat detection sensors and how can they cause a speed error?

From this news article on Saratov Airlines Flight 703: A report handed down by Russian investigators has blamed human error for the crash of Saratov flight 703, saying the pilots didn’t switch on ...
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0answers
79 views

What does “lower flatness” mean in airfoil terminology?

What does lower flatness mean in these parameters of a Glenn Martin airfoil?
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1answer
172 views

What exactly are “clipped” wings?

What exactly does "clipped wing" mean? Been having a rather heated debate. My understanding is that clipped means the tips were removed after manufacture. The other party claims that if it was ...
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1answer
426 views

What does leading edge radius mean?

What does leading edge radius mean amongst these parameters of a st cyr 24 airfoil?
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2answers
396 views

What qualifies as a “takeoff” and “landing” in currency requirements?

I just met my night-time currency requirements at KONT. Landing and taking off from a 12000 foot runway in a Cessna 152 got me to thinking (always dangerous, I know). There's more than enough room ...
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2answers
1k views

What is the difference between a vertical stabilizer and a rudder?

I saw two questions on locating these surfaces ahead of CG: Vertical Stabilizer and Rudder How are these the same or different control surfaces?
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1answer
307 views

Why are some Tomahawk missiles' nose duck-nose shaped?

Why there is a duck-like shape in this Tomahawk missile's nose? I see this shape in most Tomahawk images; however, not every Tomahawk's nose is shaped like this. If it is an aerodynamic feature, ...
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1answer
323 views

What is a “slender delta” wing?

I am curious about delta wings. I read some articles and found the term "slender delta". Please help me to understand this term.
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1answer
121 views

What does “RA” mean in the FAA Terminal Constraints?

I'm trying to interpret the Terminal Constraints listed on the Operations Plan Advisory (https://www.fly.faa.gov/adv/adv_spt.jsp). RA seems to be used in the context of weather, but I haven't been ...
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2answers
609 views

What is the FAA definition of “takeoff” and “landing”?

This question is in the context of commercial flights with passengers. What is the definition of "takeoff" and "landing" phases? Does it include taxi? Is it from lift-off for takeoff? and touchdown ...
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1answer
226 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
5k views

What does the letter G mean in a runway identifier?

Boulder Municipal Airport (KBDU) has runways 8 / 26 and also runways 8G / 26G. What is the significance of the letter G following the runway numbers?
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2answers
298 views

What is the relationship between the terms “airprox” and “near mid-air collision”?

Do the terms "Airprox" and "Near mid-air collision" mean the same? If not what is the difference between them?
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1answer
222 views

What is Arctic Control Area (ACA)?

I saw that in Jeppesen airway manual but I didn't find a definition for it. What is that? How to establish it? Who establishes it and for what reason?
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5answers
703 views

Is it incorrect to refer to a C-130 as a jet?

In this article by CNN, the C-130 involved in the unfortunate crash in Savannah, GA is referred to as a "jet." Is this considered proper usage? I'm not looking for public opinion here but official ...
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2answers
2k views

What does the FAA mean by “Make and Model” of aircraft?

Short Version: How does the FAA define the terms "make" and "model" in regulatory documents, particularly in the context of referring to pilot experience in aircraft? Long Version In 14 CFR 135—and ...
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3answers
210 views

What does “inertial” refer to in “inertial reference”?

An ADIRU makes use of air data reference and inertial reference. Inertial reference calculates the heading, position, ground speed and attitude. I was wondering why is it called inertial. Is it ...
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1answer
301 views

What is the english term for “vol en ficelle”?

From what I have read online and understood, "vol en ficelle" is basically a low altitude flight preparation method that requires calculating a set of altitudes to be followed in order not to crash. ...
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1answer
383 views

Why do we say “climb” and not “ascend”?

The term for moving to a lower altitude is "descending." Why, then, is the term for moving to a higher altitude "climbing" and not "ascending"? The latter goes better with the term "descending." Does ...
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2answers
205 views

Does the reference for AGL include obstacles?

Let's say a plane flies 10m above some trees, that themselves are 10m above the underlying ground. Would that be 10m or 20m AGL? Or, in more abstract terms: What exactly is the reference point for ...
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1answer
798 views

What's the difference between “HAND OFF” and “HAND OVER”?

I think "HAND OVER" is a whole process of transfering radar idenrification between 2 controllers, and "HAND OFF" is a term used by the transfering controller(not receiving controller) when doing HAND ...
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4answers
14k views

What is it called when an airplane has to circle because it can't land?

Sometimes, a plane is required to circle around an airport repeatedly because for whatever reason, it is not able or permitted to land just yet. This state in which a plane is stuck in the air in ...
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1answer
490 views

Why is the Departure leg of the traffic pattern being mistaught as Upwind?

I hear a LOT of newer pilots and CFI's erroneously referring to the Departure leg of the traffic pattern as the Upwind. Ref. A.I.M. Sec 4-3-2. Actually had a Tower controller tell me "I'll call your ...
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4answers
137 views

Is there a generic term for origin and destination seen from an airport point of view?

I am trying to create a program that gives you the departures or the arrivals from a given airport. Thus, in the software code, I would like to refer to both origin...
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1answer
292 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
181 views

What is the name of the system that replaced stairs for disembarking aircraft?

Back in the day, or in old airports, or airports that have not upgraded their systems, passengers disembarked in aircraft using stairs, through rain and or snow and extreme weather, sometimes having ...
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1answer
1k views

What's the difference between aquaplane and hydroplane?

If one reads through 10 articles describing a plane which overran a contaminated runway, the term aquaplane will be used 9 times and the term hydroplane once (and on that one time there will be a ...
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2answers
141 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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5answers
4k views

What is it called when you roll without yawing or pitching?

My instructor made me do an exercise that consists of banking the sailplane left and right around 30 degrees without moving from the axis. I need to aim for a specific point, and start with the ...
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2answers
12k views

What is the history of “Joker” and “Bingo” fuel terms?

Why do we use, in military aircraft, the words "Joker" and "Bingo" to indicate the fuel status of the aircraft? What is the history of these two terms?
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3answers
4k views

What exactly is the meaning of “detent” in aviation?

I come across it in many different situations e.g. "settings changed to flight detent" or "landing altitude changes at first detent". There are other scenarios which I came across in the past, but I ...
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1answer
2k views

What is a “round-robin flight”, in layman's terms?

I'm struggling to find a sufficient explanation of a round-robin flight, as it pertains to ATC. Can someone explain, in layman's terms, what it is and the lifecycle of a round-robin flight? Graphic ...
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1answer
1k views

What are the components of a crew pairing?

I need to do some modeling for an FRMS system. By crew pairing I mean a sequence of flights that starts and ends at crew base. From my understanding, crew pairings are made of: Duty periods, which ...
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2answers
224 views

“Total time away from gate”, “Longest time away from gate” - what does this mean?

In the US, airlines or airports report two figures regarding canceled flights: the total time away from the gate and the single longest time away from the gate. and regarding diverted flights: ...
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3answers
1k views

Why does the Trent XWB have intermediate compressor stages?

I realized that the Rolls-Royce Trent XWB on the Airbus A350 has intermediate compressor stages. Why is that? Other engines like the CFM56 or IAE V2500 that power most of the A320-family have low ...
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2answers
255 views

What is the ICAO equivalent of a “point out”?

In FAA air traffic control, when we have an aircraft that is transitioning through someone else's airspace that we want to talk to we do a "point out": Point Out. A physical or automated action ...
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1answer
330 views

Is there a comprehensive list of IFR terms with definitions?

Is there a comprehensive list of IFR terms with definitions easily available? I am trying to make some flash cards for study
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2answers
468 views

What does 'given rate' mean?

I was watching this video: At around 1:28 I heard the controller clear a plane to descend to a level "given rate". I was searching online but couldn't seem to find ...
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2answers
719 views

Where does the term “throttle quadrant” come from?

The area of many flight decks that contains throttles or thrust levers is often referred to as the “throttle quadrant” or “thrust lever quadrant” even if it’s not one of four parts of the panels. ...
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1answer
402 views

When passing a waypoint, when exactly are we on the next leg?

When performing one of the procedures shown in the pictures below, when exactly do we consider ourselves to be on the next leg? For example: for the fly-by waypoint, when do we consider that we are ...
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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 ...
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2answers
720 views

What is the difference between a “compass swing” and “check swing” procedure?

What is the difference between a "compass swing" and a "check swing" procedure?
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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
97 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 ...
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3answers
3k 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 ...
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1answer
788 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?
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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 ...
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1answer
559 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 (...
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1answer
279 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 ...
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2answers
322 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 ...