Questions tagged [terminology]

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

Filter by
Sorted by
Tagged with
14
votes
1answer
3k 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 ...
0
votes
0answers
153 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: ...
3
votes
1answer
384 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 ...
16
votes
1answer
5k 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 ...
1
vote
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?"
8
votes
1answer
626 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 ...
4
votes
2answers
241 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 ...
5
votes
1answer
3k 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 ...
4
votes
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 ...
9
votes
2answers
615 views

Why do pilots refer to the Flight Service Stations as “Radio” in the the United States?

When using an aircraft radio to call a Flight Service Station ("FSS"), why do pilots refer to them as "radio?" I understand calling control towers "tower", ground control "ground", Air Route Traffic ...
10
votes
1answer
340 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 ...
0
votes
2answers
163 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
votes
1answer
285 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 ...
1
vote
1answer
299 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 ...
4
votes
1answer
9k 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 ...
10
votes
1answer
885 views

What is Flexible Gunnery in the US Air Force?

I read many times in English Wikipedia that some servicemen were trained in Flexible Gunnery schools, but I don't get what that exactly means. Example: In January 1942, the 2d Air Force was ...
7
votes
3answers
621 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/...
5
votes
1answer
348 views

Does the definition of visibility take object size into account?

Overall, visibility is the distance at which objects may be discerned. Does this definition take into account the size of the objects? Obviously large objects can be seen from farther away than small ...
13
votes
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 ...
3
votes
3answers
2k views

How does bank angle differ from roll angle with respect to stability in fixed-wing aircraft?

I would like a clarification on bank angle and how its different from roll angle with respect to to fixed wing aircraft. It is my understanding that the bank angle is a result of rotating the aircraft ...
5
votes
3answers
5k 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
votes
1answer
652 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 ...
12
votes
3answers
10k views

What's the difference between racetrack and holding pattern?

Is there any difference between them or they are only synonymous?
3
votes
1answer
354 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 ...
8
votes
4answers
1k 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
votes
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 ...
6
votes
2answers
974 views

What is meant by a fused radar track?

Can anyone explain what a fused track is from the perspective of radar?
12
votes
3answers
10k views

What is the difference between a propeller and a rotor?

I have been making the mistake of using words "propeller" and "rotor" interchangeably when they are not the same thing. What is the difference between a propeller and a rotor?
8
votes
2answers
36k views

How do terms apron, ramp, tarmac, taxiway, parking area, gate, hardstand relate to each other?

The terms apron, ramp, tarmac, taxiway, parking area, gate, hardstand are used in a way that I cannot understand. Boeing Everett Factory. Photo by Andrew Hunt at Airliners.net (url unknown). Cropped ...
3
votes
2answers
395 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
votes
1answer
123 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?" ...
0
votes
1answer
616 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 ...
12
votes
1answer
1k views

What exactly are “suitcase handles” in a cockpit?

I was watching Seconds From Disaster about Alaska Airlines 261 (the one with the vertical stabilizer issue) and at one point the copilot tells the pilot to "try the suitcase handles". Is that pilot ...
7
votes
2answers
4k views

What is the difference between a Boeing Line number and a Block number?

We know that every Boeing aircraft has a Line number, Block number, and MSN number. I want to know what what does it mean by this Line Number or Block number. and what are the difference among these ...
2
votes
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 ...
0
votes
1answer
109 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
votes
2answers
908 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 ...
4
votes
3answers
9k 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 ...
3
votes
1answer
168 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?
3
votes
2answers
2k views

What is the difference between fuel exhaustion and starvation?

Is there any technical difference between fuel exhaustion and starvation? And what does it mean if a pilot says he has a "fuel shortage"?
2
votes
1answer
144 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 ...
3
votes
1answer
385 views

What is the difference between directs and shortcuts in the Route Availability Document?

I am studying about directs and shortcuts in aviation. While flying, an airplane can move from an airway to another by using directs or shortcuts. What I want understand is the difference between ...
6
votes
2answers
809 views

Does the “bat wing” aircraft paint design have a proper name?

I would like to do a web search for different planes that have utilised the "bat wing" paint application noticeable on the wings below? What keywords should I search for?
2
votes
2answers
1k views

What is the regulatory definition of AOG?

What is the legal or regulatory definition of AOG (Aircraft on Ground)? For example, this is sometimes stamped on a repair order.
3
votes
2answers
238 views

Which is the technically correct term: Nose Gear or Nose Landing Gear?

Talking about landing gear system, came across my mind the correct and technical name. Is it NOSE GEAR or NOSE LANDING GEAR?
4
votes
1answer
216 views

What is the difference between SUA (Special Use Airspace) and FUA (Flexible Use Airspace)?

The EUROCONTROL Concept of the Flexible Use of Airspace (FUA) is that: an ASM concept currently applied in the ECAC area and based on the fundamental principle that airspace should no longer be ...
5
votes
2answers
1k views

What is an Airline?

What is a good definition for the term "Airline"? The term is used extensively, and it's meaning is well understood at the one end of the spectrum: air carriers flying passengers on large aircraft on ...
0
votes
0answers
246 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, ...
4
votes
1answer
941 views

What is the difference between SUA and SAA?

I would like to understand the difference between Special Use Airspace (SUA) and Special Activity Airspace (SAA). I found the following definitions. Eurocontrol Lexicon for SUA (from FAA): ...
5
votes
2answers
1k views

What is the difference between Flight Test and Test Flight?

What is the difference between Test Flight and Flight Test? Are they the same thing or synonymous?