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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4answers
241 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?
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1answer
159 views

What is an “unsafe airline”? [closed]

Question: Is there any internationally accepted definition for what an "unsafe airline" is based on objective criteria (e.g. fatalities per million passengers) ? Or is there an international standard ...
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2answers
1k 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
380 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 ...
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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 ...
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3answers
179 views

Is “wingman” strictly a military term?

Does it have to be a potential combat situation for a pilot flying on another's wing to be called a wingman. If two aircraft are being flown in formation to a destination simply for the purpose of ...
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2answers
164 views

What is the real difference between aerospace and aeronautical?

I see people using these two words interchangeably. But I feel there is a huge difference between the both.
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3answers
2k views

Definition of “Rotation Speed” vs “Lift Off Speed” vs “Fly Off Speed”

Is rotation speed and lift-off speed ever used interchangeably? (AMENDED Question) Is lift off speed and fly off speed the same? (See supplemental info below) I thought I clearly understood the ...
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1answer
296 views

What is a CRM and what does it stand for? [duplicate]

I've always wanted to ask a pilot what a CRM was. Of course, I didn't really get lots of chances to ask pilots, no I thought of just asking here. What is a CRM and what does it stand for?
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1answer
141 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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1answer
2k 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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1answer
502 views

What is the meaning of segment in MTRs?

Military Training Routes (MTRs) with no segment above 1,500' AGL shall be identified by four number characters (IR1206/VR1207) MTRs that include one or more segments above 1,500' AGL shall be ...
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1answer
194 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 ...
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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 ...
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2answers
256 views

What exactly rotates along the lateral axis? Is 'rotate' mathematically correct?

Researching the etymology of 'rotate' (that OED lacks!), I chanced on Anas Maaz's Quora answer: What many does not know is 'rotate' is just not a fancy word, but it involves a real physical ...
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1answer
149 views

What's the difference between 'modification' and 'corrective action' in an AD or SB?

For example Modification of an airplane in accordance with the instructions of the specific SB as specified in Table 1 of this AD, as applicable...
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1answer
101 views

What is the meaning of “regular pitch” when applied to a propeller?

I am looking at parameters of a propeller that looks like this: 3 blade xx inch diameter (regular pitch) What does "regular pitch" mean?
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1answer
3k views

What is the difference between microburst and windshear?

When I read about these weather phenomena, I find that both of them depict the same thing, and have the same actions to avoid. So why are they differentiated? http://www.myairlineflight.com/windshear....
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1answer
3k 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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3answers
6k 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
258 views

What is the name for a flap that increases the wing's area but not its camber?

Flaps are high-lift devices mounted to the rear portion of an aircraft's wing. Some types of flaps increase lift by increasing the wing's camber, or, at least, that of its lower surface (plain flaps, ...
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1answer
200 views

Why is it common to speak of “Concorde” rather than “the Concorde”?

Suppose you researching a book on the history of Boeing B-17. Suppose you researching a book on the history of the Boeing B-17. Which of those sentences sounds more complete and correct? OK, so ...
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1answer
433 views

What are the radius of containment (Rc) and horizontal protection limit (HPL) and how are they related to Type Code?

In ICAO Document 9871 (Technical Provisions for Mode S Services and Extended Squitter) page 30 they have mentioned it in the form of a table. But they haven't explained HPL and Rc in detail.
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1answer
149 views

AN-hedral or Cath-hedral? [closed]

We normally hear of wing geometry with dihedral. Most commonly, when speaking of a wing with negative dihedral, we hear the term anhedral. As I recall the prefix "an" indicates "without". On a few ...
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1answer
100 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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1answer
3k views

What are ARTCC, RCO and FSS and what are differences?

I am confusing what ARTCC, RCO and FSS. and also what do they do? Do they control air traffic by communicating with pilots? Also, do they offer WX information in air born?
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1answer
69 views

How to call a cartesian (END) coordinate system, that is referenced in surrounding air?

I'm looking for the correct/usual terminology for a coordinate system, that is moving with the wind. I do calculations in a Cartesian East-North-Down (END) system. When taking wind into account I'd ...
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1answer
432 views

What is the aviation term for what the navy calls “fire control system”?

The weapons systems, including computers etc, in a naval ship can be referred to as the Fire Control System. I'm not sure if FCS would be considered an appropriate acronym for fire control; I'm using ...
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2answers
223 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 ...
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0answers
59 views

What does “representative sample engine” mean for an overhaul extension?

If the PT6 turbo prop engine is required for an extension for overhauling due to operational reasons, the manual has to be searched if the extension is feasible for the company. The company states ...
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75 views

What is the difference between flight watch and home reserve?

Can anyone explain the difference between 'flight watch' and 'home reserve' with regards to flight and duty periods. This is in regards to a charter operation, where crew members are on standby at ...
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86 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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3answers
287 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....
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409 views

What is the area between the taxiway and runway shown in the picture below?

Is this the Arresting area? I'm not too sure what you call this area
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223 views

Is there a specific aviation term for suicide by pilot?

CFIT, controlled flight into terrain, refers to an aircraft being unintentionally flown into the ground. Is there any term specific for suicide by pilot? CFIT would not apply to that situation.
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1k views

What is a hypernym for the ascending and descending legs of a flight?

If an airline flight is everything that happens in between your starting and ending gates. What is the generic term for each time the plane ascends or descends during an air route? In layman terms, ...
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2answers
215 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
834 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
104 views

Launch control equivalent while take-off

What is the proper term used when the plane is stopped and the engine is ramped up and after a certain thrust is reached, it suddenly starts off with a jerk.
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1answer
120 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
175 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
115 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
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, ...
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1answer
318 views

What is the meaning of AFT in airworthiness directives?

What is the meaning of AFT in airworthiness directives?
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1answer
69 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
343 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
2k 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 ...
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1answer
322 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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188 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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4answers
225 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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