Questions tagged [commercial-aviation]

Commercial aviation is the part of civil aviation, whether general aviation, non-scheduled service, or scheduled airline service, that involves operating aircraft for hire to transport passengers or cargo.

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156 views

Is post-COVID flying more dangerous?

To be clear, this doesn't relate to safety relating to the virus, I'm asking about flight safety. A comment on this question states: There's a history of accidents with aircraft just out of ...
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What does prior weather shift distance is appreciated mean? [closed]

When a pilot uses the PA system to make the announcement below, what does 'make sure prior weather shift distance is appreciated' mean? Pilot: Make sure prior weather shift distance is appreciated. ...
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Why aren't we using drone blimp/hybird airship for delivery? [duplicate]

Currently, the heaviest weight a commercial drone (the type that delivers Amazon package, not the type that delivers tons of stuff) can lift is 4.5kg with a 30-45 minute battery life. A drone blimp/...
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What is the difference between an Airbus A330-200 and an A330-243?

I am just curious to know the difference between Airbus A330-200 and A330-243. Sri Lankan Airline A330-243 Sri Lankan Airline A330-200
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How serious is the problem of “stopping too far” next to the jet bridge?

In the answer to the recent question "How does an airliner adjust ...", there is the mentioning of the signal: "STOP TOO FAR". But what to do if you see this? In other words, if ...
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How does an airliner adjust and move exactly over the coloured lines before stopping in front of the jetways?

How does an airliner adjust and move exactly over the coloured lines before stopping in front of the jetways?
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Why do we see many more 5th and 8th freedom cargo flights than passenger flights?

Usually, we can see many cargo flights operating between 2 foreign countries (and even as domestic flights within a foreign country in some cases). There are passenger flights that operate in the same ...
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Can any US airline fly to and from any US city it wants to?

I am trying to understand the US commercial aviation industry. Assuming that slots are available, are US airlines permitted to fly to and from any US city they want to? Or are there limited permits ...
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Why are the lights inside commercial airplanes turned off during take off and landing?

Before landing and taking off, I notice the lights inside commercial aircraft are greatly reduced. I don't buy the explanation of power saving in case full thrust is needed as nowaday lights don't ...
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Does the avoidance of thrust reverser save fuel?

On 2017-06-17 I took an AirAsia Airbus A320-200neo from Hong Kong (VHHH) to Kuala Lumpur (WMKK). The flight crew did not use reverse thrust for slowing down the plane. Trying to find an explanation ...
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What do the various lights in the overhead aisle light cluster of a Bombardier Q400 NextGen represent?

I took this picture of an overhead aisle light cluster in a Bombardier Q400 NextGen. Copyright: self I am inquiring about the role of the bottom row of six rectangular lights. From right to left ...
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1answer
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Why did the 747-8's freighter version make its first flight before the passenger version?

I have read that the 747-8F entered service in October 2011, almost eight months ahead of the passenger version (747-8I). Anyone know why this is? Thanks
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Who activates the fasten seat belt warning on commercial flights?

Who activates (and de-activates) the "fasten seat belt" warning on commercial flights? I would guess it is either the pilot in command (normally the captain) or the first officer (co-pilot). If the ...
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Why did Avianca have A318s with PW6000 engine?

I want to know about the upgraded PW6000 Avianca A318s. Why did those get upgraded? Did they not produce enough thrust already?
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2answers
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How do airlines train their pilots to deal with the stress of delays?

There are some good answers here dealing with boredom during long flights and with the physical stress of piloting, and with what pilots to do during a delay. I'm interested in how pilots cope with ...
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What is the ratio of standby crews to flying crews?

Section 4.O of the FedEx Collective Bargaining Agreement discusses how pilots are to be compensated for being on standby. From what I can tell they basically get paid a "trip guarantee" that is close ...
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4answers
288 views

Why don't commercial aircraft use tail hook technology?

Tail hooks help drastically reduce an aircraft's speed during landing, and would therefore reduce the necessity of having long runways. So why doesn't tail hook technology be implemented into ...
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3answers
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How large are the banners that are trailed behind small planes for advertising?

How large are the banners that are used for aerial advertising, and how much do they normally weigh? Example: source: © Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons) Wikipedia page on ...
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Why do supersonic and hypersonic planes have a pointed nose whereas commercial planes have a round nose [duplicate]

We see supersonic and hypersonic planes having a pointed nose whereas commercial planes have a round nose.is there aerodynamic reason for these different design?
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Do the cabin announcements follow a common protocol?

Until recently, my local airline made all their pre-flight and pre-landing announcements in Swedish and using an informal language. A few months ago they changed this and are now using all the ...
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2answers
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Shall We Consider Reversers in performance Calculations?

Thrust reversers are featured to help slow down the plane after touchdown. Moving the thrust levers aft activates the translating cowl to open, closing the blocker doors. This action stops the fan ...
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1answer
67 views

How to define quarter-chord sweep angle for a cranked wing?

I have the values for surface area, span, aspect ratio, and quarter chord sweep angle, etc., for a general trapezoidal planform. So, I changed my wing to a single cranked wing such that surface area ...
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Why is C-5 Galaxy not used for commercial airlines while Boeng 747 is?

For a layman like I am, both the planes look massive and similar in size and shape, as if a near copy of each other. Do the similarity only end in the size and shape? Do they not perform equally well ...
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1answer
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How many cabin crews are needed for an A350-1000? [closed]

How many cabin crews are needed for an A350-1000?
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1answer
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Cruise Mach Number less or more than Critical Mach Number

Do commercial airplanes cruise at Mach number higher than the critical Mach number? And what is the critical Mach number of airplanes like B777 or A330?
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Can PPL, CPL, and ATPL be completed within a year?

It took me about 8 months to complete my PPL, because I struggled to go solo and I haven't started my CPL training yet due to financial set back. I've heard about students who completed their PPL ...
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2answers
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Is AMDAR a required system on aircraft?

I was intrigued by the assertion that COVID-19 depressing commercial aviation has lead to lower quality weather forecasting The aircraft observations are a key piece in the jigsaw of national and ...
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2answers
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Which engines do airliners start first?

I noticed many planes, especially Boeings (correct me if I'm wrong anywhere), start engine "2" first and shut down engine "2" last. However, I was watching an Airbus A350 cockpit video when I ...
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1answer
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Is there standard ticket data format specification for commercial flight operators? [closed]

I am new to this group and what brings me here is I am doing a research on ticketing solutions for commercial airlines. So I just wanted to find out if there's a international standard specification ...
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1answer
199 views

Can pilots take multitools onboard unlike passengers in Canada?

Can pilots in other countries or Canada carry Swiss army knives onboard on commercial flights?
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Why are 'ghost flights' necessary?

This article details the recent (March 2020) grounding of 90% of Ryanair's fleet due to the COVID-19 outbreak. Flight tracking data showed that all bar one of the jets had been flown in recent days:...
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4answers
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Why are Low Cost Carriers ordering several hundred aircraft?

Indigo is a low cost carrier, which already has 99 A-320s in its fleet has ordered 431 more. This airline currently covers 35 routes, while the full service carrier Emirates has 221 planes, and ...
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1answer
142 views

Why are non-essential passenger flights still being flown? [closed]

I'm not asking about essential passenger flights like for "like food, supplies, and flying medical workers. Oughtn't non-essential passenger flights have been shut down in North America, to curb the ...
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10answers
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Is there a maximum possible size for an airplane?

Is there any theoretical or practical limit to the maximum number of passengers - and therefore size - one can build an airplane for?
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Which is longest Oceanic crossing for any commercial flight route?

During oceanic crossings, there are limited to no terrestrial radio communications available, so I would think that most flight routes are designed to minimize ocean crossing time. Which commercial ...
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1answer
111 views

What is ATR Automatic Thrust Restoration in MD-83?

What is ATR Automatic Thrust Restoration in MD-83 ?
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1answer
133 views

Can the 787 mini navigation display be controlled independently from the ND?

Some aircraft, e.g., the Boeing 787 have the option to display a "Mini Navigation Display" on the left Outboard Display Unit, right under the Primary Flight Display: (image source) Is the ...
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2answers
152 views

Is there simpler way than scraping flightradar to determine Number of Flights between Two Countries?

Is there a simple way to procedurally determine how many flights are flown between two countries on a given day? Maybe even get an inbound/outbound break down? I consulted the FAA data site (https://...
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2answers
370 views

Could the toilet be used as an extra passenger seat?

In the US, if the toilet had a seat belt, would it be legal for an airline to board one more passenger than the number of normal passenger seats, requiring that whoever used the toilet last must ...
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1answer
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Why does Google's Wing drone have dimples?

The question What operational aspects of Alphabet's Wing drone delivery service will be the same as that of an airline? includes a cropped photo of a google drone from FAA Certifies Google's Wing ...
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1answer
2k views

What is this device they bring on board from the jet bridge when we park?

Every time I deplane a Virgin America A320, I notice that they grab something from the jet bridge, and stuff it between the jump seats. I haven't seen any other commercial airlines with things like ...
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1answer
139 views

Are there any Part 135 (On-Demand Passenger Charter) companies out there that use Aviation Bio-Fuel?

I was recently approached by a client asking if I can provide charters on environmentally conscious aircraft that run on Aviation Bio-Fuel. Anyone have any insight on what is required for an ...
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FAA's handbook, “in the middle of instrument”means where in this page?And is there anything wrong in ths page that I can correct?

Excuse me, does anyone know how to correct this page. My English and knowledge of aircraft is not well. this is one of FAA's handbook, "Instrument Flying Handbook" and its "Instrument Flying Handbook ...
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Carpet Plots for Aircraft Sizing

Generally, Carpet Plots are constructed to find out an optimal design which will satisfy all the performance needs and is least in weight & cost. I want to know how to construct a carpet plot? I ...
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6answers
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Can ATC handle a flight as emergency although the pilots have not declared an emergency?

The preliminary report for the LNI610 crash shows how much distractive conversation there was between ATC and LIN610 at a time when the pilots clearly didn't have the aircraft under control – as ...
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1answer
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During which phase of the mission profile, the airplane fastest?

In a mission profile, there are various phases such as Climb, Cruise, and Descent (excluding other phases). My question is during which of these phases, the Mach number of the airplane is highest? Is ...
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Does the NTSB and other investigative agencies charge airlines for investigations?

Does an airline have to pay the investigation team? For example the NTSB? And if Boeing or Airbus participate in the investigation, do they also charge the airlines?
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1answer
554 views

What happens if an aircraft tries to land at MTOW (if greater than MLW)? [duplicate]

Here's a scenario: Just after Take-Off, there's an emergency on-board and pilot wants to land immediately. But, the weight of the plane wouldn't have decreased by large margins (usually 0.02*MTOW). ...
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2answers
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What is the Function of Pressurization Light on Exit Doors for Commercial Airliners?

I am well aware that the average human is unable to open plug doors in flight due to pressurization of the cabin. I've noticed, however, a "cabin pressure" warning light in the window of exit doors, ...
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8answers
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Double deck vs wide body airliner, why would anyone build a double deck one?

I don't understand why double deck aircraft (or multiple decks in general) are a good idea. They must be, because there is a significant amount of them. But given a cross area, which should roughly ...

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