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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9
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1answer
384 views

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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2answers
424 views

What are the meanings of these terms used in ATC ground communications?

Regarding ATC ground communications, what/who are the following callees? Are these aircraft, or vehicles, or people? [Airline name] maintenance [Airline name] tug [Airline name] mechanic
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3answers
4k views

Why do most A320s make that distinct scream on takeoff?

I've noticed that the engines on the A320 make a very a distinct sound on takeoff. Is there something about the CFM-56 series that causes this? This noise can be heard in this video.
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3answers
259 views

What is the lightest jetliner out there?

What is the lightest commercial jetliner out there? I was thinking of something like a Embraer E170.
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2answers
68 views

In general, what are the RPM ranges/differences between the various compression stages on a 2 or 3 spool (LP,IP,HP) turbojet/fan engine?

I have a general interest in jet engines and am pretty new to the topic so I wanted to toss this question into the wind as I don't have any previous experience or knowledge to pull from and haven't ...
5
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1answer
290 views

Can pilots take multitools on board in Canada?

Can pilots in other countries or Canada carry Swiss army knives onboard on commercial flights? Passengers are not allowed to do that in Canada.
16
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1answer
2k views

What does Ryanair do without Sick Bags?

Sorry for the slightly strange question, but Ryanair (Europe's Largest Low Cost Carrier) decided that seat back pockets took too much effort and got rid of them, and it appears the sick bags in the ...
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2answers
209 views

Windowless VS windowed aircraft [duplicate]

While Emirates was showing off its triple seven's ability to provide crystal-clear viewing from virtual windows, it mentioned: "that could be a step to windowless aircraft", and I felt like ...
5
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2answers
489 views

Are any airlines actually flying the Comac ARJ21?

The Comac ARJ21, China's answer to Embraer's regional jets, was launched with great fanfare in 2016. However, if FlightRadar24 is to be believed, launch customer Chengdu Airlines does not appear to ...
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1answer
119 views

What is ILS CLASS in this airport NOTAM?

I have seen this NOTAM for UAII /CIT SHYMKENT airport and they mention ILS CLASS for runway 10/28, Does anyone knows what it means? NOTAM: NOTAM K3998/20: Shymkent Airport (UAII) K3998/20 NOTAMN Q) ...
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0answers
95 views

Best Way to certify DO-178 Communications Stack?

We currently have a piece of hardware running an RTOS that needs the communication stack to be certified to DAL-B. Everything has already been developed for non commercial aerospace applications, ...
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0answers
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Question regarding Selection Assessment [duplicate]

Could anyone please help me with this Spatial Orientation bit and explain me its basics. I am having alot of confusion while attempting such questions. Any help would be much appreciated.
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1answer
74 views

Does the civil industry use the CAN FD bus?

Does anyone know if commercial aircraft are using the CAN FD communication bus?
21
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1answer
6k views

How many type ratings are pilots allowed to hold at once?

I think i've read that the B787 has a common type rating with the B767 and B777. But I also think I've read that pilots are only allowed to fly two types of aircraft at a time... So when they go to ...
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2answers
277 views

Before COVID, what was the largest aviation crisis ever? [closed]

The Covid-19 pandemic is the worst crisis aviation has ever faced. Which one was the biggest one before that pandemic?
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3answers
18k views

How does one become an airline pilot in Australia?

I am 19 years old and from a young age I have always wanted to become a pilot at an airline. Becoming one is my biggest dream, to me an airline pilot is the most coolest jobs - I get goosebumps just ...
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2answers
796 views

What is the acceptable position of the brake wear indication for A320?

What is the acceptable position of the brake wear indication (PIN) for an A320 to be safely dispatchable?
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1answer
69 views

Factors to be considered when re-engining aircraft

What parts of the aircraft need to be adjusted / refitted / added when fitting new (different type) of engines? Also what what kind of re-certification regarding airworthiness etc. will be necessary?
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2answers
1k views

Are tripropellant jet engines a viable way to increase fuel efficiency for large commercial airplanes?

I was just reading about a tripropellent rocket engine that apparently passed all tests and was ready for flight before the program was cancelled in the early 90's. The engine was the RD-701 for the ...
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4answers
985 views

Would hydrogen fuel tanks on an airplane increase lift?

Since hydrogen is lighter than air, would hydrogen fuel tanks help provide lift for the airplane?
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3answers
318 views

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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1answer
109 views

Does the retirement age for commercial airline pilots vary across the globe?

Do the retirement age of commercial airlines pilot varies from country to country?
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15answers
6k views

Are there passenger flights with stops in the middle?

Train and bus lines usually have a number of stops along the way where some passengers can get on and off, while the rest stay onboard and continue to their destinatiom. For sufficiently long routes, ...
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3answers
209 views

Could gliders be a clean, practical alternative to other forms of transport?

Would it be possible to use pure gliders as an eco-friendly mode of transport? From what I have read so far, gliders can travel at a speed of 100-170 km/h. That would not be able to compete with a jet ...
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4answers
341 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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1answer
289 views

What programming language(s) is Boeing's MCAS written in? [closed]

What language is Boeing's MCAS written in? Thanks
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1answer
133 views

Can a company without an AOC hire out pilots to another company that does have one?

Is it legal for a company that does not hold an Air Operator Certificate (AOC) (company A) to hire out a pilot a second company that does have an AOC (company B)? Company B would be the one actually ...
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5answers
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Why did my flight climb so sharply on takeoff?

I was on a Ryanair flight this morning that seemed to perform an incredibly aggressive takeoff from London Stansted on a 737-8. Takeoff was fairly fast, but the climb was the steepest I ever ...
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1answer
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1.VRB02KT: Is it varying more or less than 180°? 2.VRB03KT: Is it surely varying more than 180°? [duplicate]

Based on the following ICAO Annex 3 criteria for the use of the abbreviation VRB (not FAA, which is different and evident): when the total variation is 60° or more and less than 180° and the wind ...
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4answers
3k views

Why did air traffic levels decrease dramatically in the US through the 2000s?

In 2015, the FAA stated that System-wide, air traffic has declined by 24 percent since peak year 2000. The chart in Figure 1.1 shows that air traffic volume is not expected to return to peak ...
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1answer
109 views

Why there are multiple classes in same plane? [closed]

This question always baffled me, why most conpanies do not have different planes for each ticket class ? There are obvious benefits to this system: Better paying customers can fly more reliable/newer/...
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1answer
195 views

Why don't airlines place some physical separator between passengers in the planes to prevent the spread of COVID-19?

Why don't airlines place some physical separator between passengers in the planes to prevent the spread of COVID-19? A bit like the following, but adapted for cabins and viruses: (image source)
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1answer
175 views

Has any commercial airliner ever flown inverted? [duplicate]

Has any commercial airliner ever flown inverted, either intentionally (extremely unlikely) or during an upset?
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3answers
98 views

How different is ADFX/ARINC 664 router from normal Router?

ADFX or ARINC 664 is a protocol that is derived from the Ethernet protocol. What I understand it is Point to Point (no routing of data) Deterministic used VLAN for addressing I just wonder do we ...
6
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1answer
326 views

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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5answers
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First time passenger flight by two pilots?

In this video, the captain proclaims after take-off: We were nervous about this, but takeoff went smoothly It was his first passenger flight in the A350, but still... not exactly what I would want ...
13
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1answer
2k views

Electrically heated windshields are mostly transparent, but their colors vary from light blue, yellow or light pink. Please explain

Found it on a quiz worded this way. No other details unfortunately. I can only assume it has to do with the heated element materials of tungsten or molybdenum reaction with film layer materials. ...
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4answers
3k views

How similar/different are the roles performed by Military and Civil pilots?

Broadly, Military and Civil are the only two categories in which the Pilots can be classified on the basis of the roles performed by them. What are the similarities and differences in tasks performed ...
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2answers
2k views

Why do pilots wait for a positive rate to put the gear up, When V1 means “commit to takeoff”?

To explain further, V1 means they cannot stop in time if anything happens. Therefore they must commit to taking off. So why wait for a positive rate? Shouldn’t it be retracted as soon as they see a ...
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1answer
83 views

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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1answer
200 views

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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2answers
1k views

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 ...
7
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1answer
2k views

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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2answers
553 views

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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0answers
106 views

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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6answers
52k views

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 ...
9
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3answers
2k views

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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1answer
131 views

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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3answers
445 views

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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1answer
103 views

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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