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
23
votes
10answers
50k views

What's the difference between a balked landing and a go-around?

Is there a difference between a balked landing and a go-around? If there is, what exactly is a balked landing?
1
vote
1answer
98 views

What does “running torque” mean?

I would like to know the meaning of the phrase and especially the meaning of "running torque": Torque the inner plug to between 75 and 85lbf.in. Loosen half a turn and RETORQUE to between 15 and ...
0
votes
1answer
127 views

Does this web page really correctly depict the angle that is called “incidence” in the French language in the aviation context?

Does this web page really correctly depict the most common usage of the term "incidence" in the French language in the aviation context, in the context of speaking of an entire aircraft and not just ...
9
votes
3answers
2k views

What does “Raven” [phonetic] means when used by ATC?

What is the meaning of "Raven" [phonetic] heard in use at Reagan National Airport? Most recently heard: The ATC will say "proceed direct raven" or "direct raven maintain" whatever altitude; or "...
8
votes
3answers
4k views

What is the purpose of classifying fighters?

Fighters are classified by generation, as explained in this answer. Given this Wikipedia sum up, some fighters are not clearly in a defined generation, especially for 4th generation subclasses. Thus ...
3
votes
6answers
991 views

Is there a more specific term than 'flight line' for straight lines flown during flight?

I work for a small software startup, where its just my boss and I. Prior to this job, I had no experience with aircraft. We have a client that uses our software to fly a pattern over an area, where ...
4
votes
3answers
2k 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 ...
1
vote
6answers
438 views

Why is a reduction in lift called 'drag'?

Induced drag is high pressure air 'leaking' to the upper part of the wing (low pressure zone) creating a vortex which means the area of the wing tip with the vortex can't create lift. Drag on the ...
4
votes
5answers
252 views

Is there a proper term to use when you're referring to the total number of people on an aircraft, including both the passengers and crew/pilots?

I've found that often when people quote the number of passengers on an aircraft, they exclude the crew/pilots, which they'll provide separately. Is there a proper term to use when you're referring to ...
3
votes
1answer
214 views

What does “mission mixing” mean for long-range aircraft?

I know very little, like long-range aircraft will be used for short-range and medium-range operations. But what is the purpose of using them like that? Also I want to get complete details of "mission ...
23
votes
3answers
4k views

What does the term “tanker” mean when used in regards to a passenger airliner?

In a comment on this answer: Airlines will tanker fuel if it's substantially cheaper at another airport I've wondered what that term meant before, and now this comment leads me to think that ...
3
votes
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 ...
9
votes
3answers
2k views

Is induced drag essentially nothing more than a specific type of form drag?

If I were standing outside on a windy day holding a flat rectangular object such as a food tray up in the wind, orthogonal to the direction of flow, the drag created would be classified, mostly, as ...
0
votes
1answer
81 views

What is the meaning of “transition area” as used by the FAA? Has the meaning changed over time since the term was introduced?

What is the meaning of "transition area" as used by the FAA? Does it currently have a specific meaning? Does the FAA still use the term at all? Has the meaning changed over time since the term was ...
4
votes
3answers
446 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 ...
9
votes
1answer
4k views

Why does the auto brake panel on an A320 use “lo”, rather than “low”?

Is there a specific reason that Airbus chose to shorten "LOW" to "LO" for the lowest autobrake setting? Wouldn't it be more consistent to use three letters for each setting?
2
votes
1answer
69 views

What does “5B3/P” in CFM56-5B3/P mean?

For the CFM56 engine model CFM56-5B3/P, what does "5B3/P" mean?
1
vote
4answers
236 views

What is “company compensation fuel” and “pad fuel”?

I tried to find the definition of these fuels but I could't. Does anyone know about company compensation fuel or pad fuel? In which document can I find the definition of these fuels?
1
vote
2answers
204 views

How do STOVL and V/STOL aircraft differ?

Wikipedia's page for STOVL begins with A short take-off and vertical landing aircraft (STOVL aircraft) is a fixed-wing aircraft that is able to take off from a short runway (or take off vertically ...
10
votes
3answers
4k views

What is the piece that covers the top part of tires?

I would like to know the name and the usefulness of this piece that covers the top of the tire of some planes, such as some Cessnas.
11
votes
3answers
3k views

What is the name of the movement which is carried out by plane beginning from the runway and ending at takeoff?

What is the name of the movement which begins after the plane lines up on the runway and takeoff clearance is received, and ends when the plane lifts off from the runway? Is it also called as 'taxiing'...
2
votes
4answers
4k views

What is the relationship between Angle of Attack and Angle of Incidence?

The Angle of Incidence (AoI) of most GA planes is 6°. Assuming a plane with an Angle of Incidence of 6 degrees-- How do we calculate pitch attitude if we know the direction of the flight path and the ...
0
votes
1answer
122 views

A question about the exact meaning of one British usage of the term “Angle of Incidence”

This answer to a related question stated: Most anything can have an angle of attack. If you must be specific, you mention 'angle of attack of ...' ... When we talk about airplane as a whole, ...
-1
votes
1answer
67 views

The meaning of “fully paid” [closed]

What is the meaning of "fully paid" in the airline industry? Based on my research it's an adjective and it means "paid for at full face value with no further money due from the stockholder", but I ...
14
votes
4answers
14k 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?
2
votes
3answers
205 views

Is there a standard word or phrase in the English-speaking world to describe the angle between the fuselage and the flight path / relative wind?

Is there a standard word or phrase, or several alternative commonly-used words or phrases, in the English-speaking aviation world to describe the angle between the longitudinal axis of the fuselage, ...
3
votes
1answer
79 views

How common is it in current British usage for the angle between the chord line of a wing and the flight path to be called the “angle of incidence”?

In American usage, the angle between the chord line of a wing and the flight path is called the "angle of attack". The angle of attack is also represented by the greek letter "alpha". However, some ...
32
votes
7answers
7k views

What does “Ground loops are costly. Fly them until they stop” mean?

In one of the earliest scenes of William A. Wellman's 1942 film Thunder Birds, a sign can be seen in a room of a USAAF base (some relax or briefing room, apparently), which says: Ground loops are ...
11
votes
4answers
18k views
0
votes
1answer
253 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)?
7
votes
1answer
203 views

How are “charter” and “passenger” flights defined in the AIDX standard?

I'd like to know the difference between these flight types in the IATA AIDX standard; specifically, for use in fuel order notifications.
3
votes
1answer
215 views

What is the term for an aileron that’s also used as a ground spoiler?

Ailerons and spoilers1 have a considerable amount in common; both are wing-mounted panels, hinged at their leading edges, that move up and/or down to alter the aircraft’s aerodynamic characteristics. ...
8
votes
4answers
3k views

What exactly is a “coordinated” turn?

I am wondering what turn coordination really means and what makes a turn uncoordinated? I know that when the turn is coordinated, there is no slip and skid, an aircraft is flying a perfect circle ...
10
votes
6answers
3k views

What is the difference between a glider and a sailplane?

The words "glider" and "sailplane" seem to refer to similar or the same type of aircraft. In particular, the Wikipedia articles "Glider (aircraft)" and "Glider (sailplane)" seem to be describing the ...
23
votes
1answer
14k views

What does “Boeing” mean?

We know about the existence of Boeing planes like the 737, 747, and other planes. But where did the name "Boeing" come from?
11
votes
4answers
5k views

What is an aircraft magneto?

I know that magnetos are related to the engine and that on many planes, they are used to start the engine. But what exactly do they do in the engine?
13
votes
1answer
1k views

What is an airliner's “green dot speed”, and how does it vary with weight, and why?

A related question told us, quoting from an Airbus performance manual, Green dot speed (minimum gradient) is a function of weight. Comments under the question stated that the "green dot speed" ...
1
vote
1answer
118 views

Does the phrase “.78/280/250” have a standard meaning to an airline pilot, in the context of a long descent?

Does the phrase ".78/280/250" have a standard meaning to an airline pilot, in the context of a long descent? Specific context-- the table in this answer-- Is the descent performance of the PMDG 737-...
7
votes
1answer
2k views

What are the components of a crew pairing?

I need to do some modeling for an FRMS (Fatigue Risk Management System). By crew pairing I mean a sequence of flights that starts and ends at crew base. From my understanding, crew pairings are made ...
22
votes
3answers
6k 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 ...
2
votes
2answers
95 views

“Gross” and “net” planned runway length for the Haifa airport

My city's mayor was just boasting on how she'd gotten an approval for an airport runway of length "2100 m gross, 1900 m net length", and that this would be enough to connect the city - Haifa - to hubs ...
1
vote
2answers
119 views

What is the difference between Review and Analysis in DO-178C?

In the context of DO-178C, what is the difference between review and analysis of the outputs of the software development processes? Are they both the same?
27
votes
7answers
7k views

At what point does an aircraft become an airliner?

For me, the term 'airliner' conjures up an image of a passenger jet that is capable of hosting a large number of passengers¹ but I'm finding it difficult to source a reputable definition or etymology ...
0
votes
3answers
283 views

What's the meaning of “the break is a level” in a recovery operation of an aircraft carrier?

The break is a level, 180° turn made at 800 feet (240 m), descending to 600 feet (180 m) when established downwind. Landing gear/flaps are lowered, and landing checks are completed. (source: wikimili....
2
votes
2answers
431 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, ...
1
vote
3answers
127 views

Does it make sense to say an aircraft has an attitude of 3° or that it has a flight position of 3°?

I am trying to translate an aircraft manual, and there is a diagram showing what the HUD would look like given a "posición de vuelo de 3°". The diagram is captioned in Spanish as "vuelo horizontal a ...
7
votes
3answers
2k views

What is a seal in aeronautics?

I've read phrases like "All gas turbine engines use pressurized seals for their shaft bearing compartments to keep [...]" but I do not understand what "seals" means. In spanish we haven't a word for ...
8
votes
3answers
3k views

What does it mean when autoland is fail passive / fail operational?

The below explanation is what I've got from the internet about fail passive and fail operational: Fail operational - Where you have 3 autopilots engaged, such that any single failure will result in ...
1
vote
2answers
268 views

What does “short parked” mean?

Recently, when flying (as a passenger of a regular flight) from Stockholm/Arlanda, there was quite a long bus ride from the gate to the aircraft, because the latter was "short parked", according to ...
5
votes
2answers
4k views

What is the difference between MCP and METO?

I was reading the Cessna 150H POH earlier today and noticed that the manual mentions something like "Normal cruising is done at 65% to 75% of METO power." The Cessna 172S POH charts refer to cruising ...

1
2 3 4 5
7