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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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45
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6answers
8k views

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 ...
1
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1answer
166 views

How many stripes does a student pilot have?

When a student is finishing a Bachelor in Sc. Aviation, how many stripes does a student have? Can a student have stripes during his bachelor graduation or do they have to go through other PPL courses?
3
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2answers
336 views

If Boeing used two sensors instead of one simultaneously, wouldn’t they be in the same position today?

this article states that the original version of MCAS was suppose to rely on two sensors, One sensor will detect a high angle of attack, therefore activating MCAS The other sensor will ...
3
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2answers
472 views

Is solar power used (as auxiliary power) on commercial aircraft?

Are there any commercial aircraft that use solar energy in terms of auxiliary (not as main power source, as of now) power source ? If Yes, In what forms is the solar power used? If No, Why isn't ...
1
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2answers
125 views

What 's the difference between Angle of Attack and Pitch? [duplicate]

I am interested in knowing the theoretical and practical differences between the Angle of Attack (AoA) and Pitch: Graphical definitions How are they related? In what circumstances these angles are ...
19
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6answers
9k views

Is it possible to stall a plane so badly that the nose refuses to go down due to lack of airspeed?

So basically, a stall from a high AoA to the point that the entire plane just falls with the rear end pointing straight down? Because if wind is no longer passing over the wings, then this includes ...
0
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0answers
51 views

Why do civil aviation aircraft not routinely carry missile defense systems? [duplicate]

With all the incidents with civil aircraft and missiles, why do civil aircraft not carry flares and other defensive measures by default? If official aircraft carry them it is technically possible to ...
7
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3answers
367 views

Did Boeing need MCAS because the 737 MAX didn’t meet FAA longitudinal stability requirements, or was it to make the MAX feel like the NG?

I’m confused on this. I’ve read in multiple different places that MCAS was required due to the easier stick forces at a high angle of attack and a high G force, and because of this, the Max didn’t ...
0
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2answers
677 views

Could a modified J58 jet engine be used commercially?

Could this mean for more fuel efficient supersonic commercial cruising? If so in what ways would it need to be modified and how possible is this?
0
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1answer
91 views

Is the waves and signal dangerous for human at the airports? [closed]

Waved like VHF , UHF and other themes like radio or something ....
6
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6answers
3k views

Has a commercial jet airliner ever stalled on takeoff / at low-altitude?

In general aviation, a common reason for fatalities is low altitude stalls on takeoff or practising go-arounds. Has there ever been an incident where a commercial jet airliner stalled on takeoff / ...
1
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1answer
103 views

How did the Brazilian Civil Aviation Authority have MCAS on paper from Jan 2018?

how could they know but nobody else did? Did they buy the extra sensor or something?
4
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2answers
1k views

Why does the stick force per-g test require it to be harder for pilots to pull back on the yoke instead of easier?

What happens when it’s easier to pull back banked at such steep angles, wouldn’t it be a good thing that a pilot can maintain his altitude easier than harde?
44
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9answers
8k views

How important is it to have talent to become airline pilot?

The situation that led me to ask the question is as follows: I am a student pilot with only about 10 hours of flight time. I passed the aptitude and personality tests prepared by German Aerospace ...
-3
votes
1answer
157 views

How would a pilot stabilize the aircraft after a dual engine failure?

Since there would be no more thrust, they would have to exchange energy by losing altitude to keep forward speed. But what happens towards the end, when you have to reduce your V/S to something like -...
1
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0answers
55 views

Do negligible weights affect the control of a commercial aircraft? [duplicate]

I was watching a video and it said that switching seats on a commercial airplane would be fatal. "Switching of seats from the rear of the airplane to the front seats would result in probable accident"....
1
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1answer
207 views

Why can’t aircraft use GPS to generate the IAS, instead of using pitot tubes? [duplicate]

I’m mostly asking after reading about Aeroperu Flight 603, which was caused by a piece of tape blocking the sensor. Is there any other way to gather IAS or is this the best way to do it?
28
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2answers
4k views

What are the legal issues for an Uber or Lyft type model for ride share on General Aviation aircraft in the United States?

Is it possible for an Uber or Lyft type service to operate that allows pilots with small aircraft to share a ride under current FAA regulations? I personally don't see how this could operate under 14 ...
34
votes
4answers
14k views

Does the sterile cockpit rule mean flight attendants could not inform the pilots if a passenger is in the lavatory while on final?

Context: I've seen this interesting question just the other day, asking what would pilots do after receiving this information while on final: either go around or continue with the landing. However ...
9
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2answers
2k views

Does Russia still use a Snowtam to report normative brake friction?

Does Russia still use the normative (Russian) brake friction when reporting Snowtams for their airports? What about former Soviet (CIS) countries?
1
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1answer
124 views

What does it take from the airlines to be ETOPS certified?

I have been told that the airlines to be certified for ETOPS apart from the aircraft certification, engineering wise it should have some conditions met in order to get the certification and to ...
2
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3answers
256 views

If the pilots used the brakes upon landing, would the force essentially slam the front wheel down?

So if the pilots braked immediately, with only the back wheels down, and nose wheel still up, would the force from braking cause the front wheel to come slamming down?
1
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4answers
200 views

When do commercial aircraft tail numbers change?

Each (large, commercial and most other) aircraft has a registration number, painted or stickered on its hull: the tail number. I was under the false impression that tail numbers don't change, and ...
12
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5answers
4k views

How can I get a ride in the jump seat as a non-professional pilot?

A couple of years ago, I had a strong fear of flying. Now, I really enjoy it. In fact, it is a dream of mine to sit in the jumpseat of an A320 during takeoff. I've had a handful of flying lessons. ...
0
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0answers
44 views

How come PSA airlines got the same IATA code as Comair?

PSA Airlines has the same IATA 2-letter code, "OH", as the now-defunct carrier Comair. Yet - the two companies are not related. How is it, that IATA reassigned the same code to an unrelated carrier ...
1
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2answers
395 views

What is the difference between iSpec2200 and S1000D specifications?

I know the iSpec2200 and S1000D are the specifications which are used in the aircraft maintenance manual, I have to know how they actually work in the aviation domain and what is the difference ...
-1
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3answers
186 views

Is the point of “groundspeed” in aircraft just to have a second reference of speed but two totally different measurements of speed? [duplicate]

From not understanding groundspeed will always be significantly higher than airspeed, unless the plane is pitching up and down. Is the ground speed just there for pilots to look at and say “okay we ...
5
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3answers
318 views

How do flaps help an aircraft take off at a lower speed, yet cause drag at the same time?

Wouldn’t the drag caused by the flaps just decrease the acceleration, so, although they can lift off at a lower speed, wouldn’t it be faster to just use no flaps and rotate at the higher speed that is ...
5
votes
1answer
184 views

When were commercial pilots first allowed to use glasses?

Currently, pilots with defective (but correctable) vision are allowed to pilot airliners if they have at least two pairs of their corrective lenses (typically glasses) with them on board. Was there a ...
5
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1answer
1k views

Are there any Airworthiness Directives for the Boeing 777 that might explain MH370's disappearance? [closed]

Are there currently any ADs for Boing 777s which would indicate the potential for catastrophic electronic system failures that might explain MH370's transponder failure and other issues? Was the ...
28
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10answers
17k views

Can a civilian aircraft pilot see a missile coming?

Can a civilian aircraft pilot see a missile coming? By "civilian aircraft," I mean planes that were not equipped with flares that fire when rockets approach or any similar anti-missile systems. If ...
0
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4answers
209 views

What makes airplanes pitch up during landing?

So what exactly pitches the plane upward with the rear end down? Do flaps help lower the nose when deployed 80%-100% down with such low speeds?
4
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4answers
205 views

Keeping the engine under the wings, doesn't hurt the lift as the airflow speed is higher under the wings?

To create a lift, the airflow speed on top of the wings should be higher than the airflow speed on the bottom of the wings. But when you keep the engine on the bottom of the wings, wouldn't it hurt ...
3
votes
1answer
258 views

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 ...
25
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2answers
4k views

What is the difference between being instructed to land “as soon as possible” or “at nearest suitable airport”?

On commercial airliners, the FCOM (Flight Crew Operating Manual) sometimes gives instructions to the pilots to land sooner than planned, following various in-flight failures or emergencies. For ...
0
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3answers
109 views

Development Cost?

We all hear about how aircraft development costs multiple billions if not tens of billions of dollars, but what does this money go into? The material used in making a a single prototype aircraft isn'...
0
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1answer
201 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 ...
0
votes
1answer
145 views

Can a commercial pilot with MPL , obtain PPL for general aviation in the UAE?

Is it possible for an airline pilot in case he would like to fly GA aircraft like c152/172 obtain the PPL license without going through the whole process?
0
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0answers
66 views

Can Non-citizen get a pilot job in US? [duplicate]

I finished all my training in US and got PPL, IR, CPL with multi and single both. My nationality is South Korea and wondering how can i get the jobs in US. Recently looking for the Mokulele in Hawaii ...
5
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0answers
116 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?
1
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1answer
180 views

What are the financial implications for Lufthansa (and other airlines) of keeping the back row of their A320neo free of passengers?

After the recent EASA airworthiness directive concerning the potential for weight and balance problems with the A320neo, Lufthansa announced it would no longer sell seats on the back row of those ...
2
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0answers
137 views
2
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1answer
165 views

Where can I find a list of internal airline designations for various aircraft/cabin configurations?

Is there any way to tell what the internal designations of an airline mean? Looking at Delta's seat maps for the 757, Delta has a couple of kinds, but what's the difference? Boeing 75A Boeing 75M ...
40
votes
12answers
31k views

Why don't all commercial aircraft transmit GPS data in real time?

It seems strange that trucks and taxis can be set up to transmit GPS data in real time but aircraft cannot. Wouldn't this be a useful function and feasible to implement?
5
votes
1answer
228 views

Why do they tell you to tie your lifevest on the left side during safety briefings?

This might be UK specific, given I have only been flying internally recently. During the safety briefings, when describing how to inflate the lifevest the instructions are always: "Wrap the lines ...
6
votes
1answer
301 views

Why does the B737NG need electrical power for aircraft towing?

I have read the AMM for towing and one of the mentioned steps is to supply electrical power. Is it because you need power to turn on the hydraulics in order to pressurize your brakes? For B737NG
21
votes
3answers
4k views

Why do aircraft leave the cruising altitude long before landing just to circle?

Often flights will leave the cruising altitude long before the actual landing. They will go down to a couple of thousand feet and stay at that altitude and circle for quite a while in waiting loops ...
1
vote
2answers
285 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 ...
73
votes
10answers
33k views

Is a firm landing an indication of the pilot inexperience?

In a commercial airplane, when a landing has been a bit firm, a passenger may think it was not perfect, or maybe performed by an inexperienced pilot. (Source) A perfect landing is seen by passengers ...
3
votes
3answers
435 views

What are the criteria that govern the choice between titanium, composites, and more common materials, like aluminum?

In the newest large commercial jets, composite materials seem to be all the rage. The first thing I wanted to know is why composites were chosen instead of titanium? If I'm not mistaken, titanium has ...