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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What is the purpose exactly of a ‘Control Check’?

I recently watched an Air Crash Investigation episode where Qantas flight 32 lost an engine shortly after takeoff. It was revealed that a stud pipe in a Rolls-Royce engine was made incorrectly, ...
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Which commercial aircraft can stay in the air the longest?

Which commercial aircraft, when fully loaded with fuel (and passengers and luggage up to its max takeoff weight), could stay in the air the longest without landing, and how long could it stay in the ...
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Why can a plane land in zero visibility conditions but not take off in zero visibility?

After waiting hours for a flight departure delayed because of heavy fog, I wonder why planes can perform an instrument landing with no visibility, but cannot take off without a minimum visibility.
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Is there any disadvantage to having the de-icing system on?

I was watching Mayday S11E02 about West Caribbean airways flight 708 and the pilots turned off the de-icing system partway through the flight. It's not why it crashed, but I was curious as to if there ...
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Are there any passenger aircraft with no cabin access to/from the cockpit?

Most passenger aircraft (airliners and business aircraft) have an internal door or doorway connecting the cockpit area to the main cabin; are there passenger aircraft where there is a solid partition ...
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How is Calculated TakeOff Time (CTOT) calculated?

This answer mentions: How these CTOT times are calculated is very complex, and deserves another question if you are interested. I'm interested. How does it work? What is the level of complexity ...
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Airline safety: what happened between 1959 and 1962?

The graph on page 17 (PDF page 18) of this Boeing air safety publication shows the fatal accident rate for commercial jets in the US and Canada dropped from about 40 per million departures in 1959 to ...
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Is it possible that meteor could strike a commercial airliner?

Is it possible? Are there some such accidents in human history? Is there any rules or systems design to protect airplanes?
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Why aren't there brake lights on aircraft?

Why don't aircraft have brake lights so you can see when an aircraft in front is slowing down? I know there are air traffic controllers to control aircraft but they cannot do much about an aircraft's ...
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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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Can a commercial airliner be too heavy to take off?

According to this question's answers, MTOW (or MTOM) is the Maximum Take Off Weight, which is everything up to and including trip fuel. Then there is one step above that, MRW, or Maximum Ramp Weight, ...
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How do airlines manage routes when respective aircraft undergo B,C or D checks?

While playing some airline management simulation games, I found all these checks to be some real kind of mess. If suppose I have a fleet of about 10 A-320s then if one them goes for any check, then I ...
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Do commercial airliners have the tail number placed somewhere on a placard in the cockpit?

I notice, looking at pictures of various light singles, that the tail number of the aircraft is typically prominently displayed somewhere towards the top of the instrument panel. If it were your own ...
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What is this? Multiple small cracks in passenger window

I have seen this many times in typically older aircraft passenger windows and on a recent flight from Sydney to Melbourne I took the following pictures. It appears as if there are small cracks in the ...
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Is it normal practice to refuel commerical planes whilst boarding is taking place?

The other day, I was on a KLM Boeing 737. I had just sat down in my seat, and the captain was making announcement. He said something along the lines of, As we are refuelling at this moment, please ...
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Is there any reason for why the cabin temperature would suddenly become very high?

I was flying a Fokker 100 a few months back over central Europe. We had probably just reached cruising altitude when the cabin temperature suddenly skyrocketed without reason, with the air coming out ...
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Why might a passenger jet fly at altitudes in a strong headwind when the winds are more favorable at a different altitude?

I was a passenger on an east to west flight recently. During the flight I was playing with Garmin Pilot's new "Flight profile" feature that nicely shows the wind speeds at various altitudes, and I ...
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What is the proper procedure when a passenger seat belt becomes inoperable during flight?

I was on a Delta flight in Business class on a 777 and during flight the motor of the seat caused the seat belt buckle to pop off the end of the seat belt causing the seat belt to be inoperable. ...
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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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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. ...
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Why isn't the V flight formation being used for commercial purposes?

The V Flight Formationhas been found to be helpful in achieving greater fuel efficiency and range. Though it is currently used mostly for military purposes, what restricts it from being used for ...
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Which Aircraft Models need a Tripod Jack for tail support at airport?

Which are the aircraft models that need their tail to be supported by a jack when empty? Wikipedia says this: Aircraft Tripod Jack They are used to support a parked aircraft to prevent ...
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What happens to Flight Testing Aircraft after Testing is over?

Are aircraft used for flight testing typically sold to Airline customers after their use for flight testing is over? e.g. The aircraft shown in this SE Aviation Question: Why are these windows on ...
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Is ETOPS satisfied solely by range circles?

Consider a scenario where an airplane is operated on an ETOPS 180 route where the ETOPS alternate is open, available and above minima, but there is terrain between the route and the airport which ...
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Do some modern VORs not spin? [duplicate]

Today in Ground School we learned about radio navigation. I read here that the rotating part of the VOR rotates at 1,800 RPM (wow! Is it an electric motor that spins it?) We know that modern Active ...
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Why would a copilot's window be shaded/covered?

I'm sitting in a small regional airport in Vietnam and I've noticed something odd about the aircraft I've seen arriving and departing. All of these aircraft appear to have the copilot-side window ...
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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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Does laser eye surgery prevent me from getting an EASA pilot licence?

I am a masters student in Germany and I am very much interested in pilot training. I had a laser eye surgery (LASIK) 3 years ago. I heard that people who got it are not eligible as a pilot. Is this ...
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What is the coordinate system used in an Aircraft?

I know that from nose to tail the aircraft is divided by STA (station). At least for Boeing and Airbus this is the case but I am not familiar with other manufacturers. However, there is also two ...
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What are the barriers to feasibility of stratospheric cruising for commercial air travel? (i.e. Concorde?)

In 2003, British Airways retired the Concorde for a few reasons. Rising maintenance costs Lack of demand due to safety concerns Further decrease in demand due to 9/11 attacks additionally, due to ...
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What drives and/or allows the move to higher-bypass turbofans on jetliners?

Note: I'm by no means an expert on any of this, I'm just curious. There seems to be a general trend toward higher and higher bypass ratios in commercial jetliner engines. (I'm thinking here of 737/...
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Under what circumstances should the pilot not flying intervene without asking for aircraft control?

The communication between the captain and first officer is of great importance, especially when it comes to agreeing who is the pilot flying. This question asks for the procedures regarding taking/...
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When did inflight smoking become (widely) prohibited?

Currently in my mid-'30s, I can still clearly remember the time when half of the plane's passengers were smoking throughout a long-haul flight. I know commercial flights became non-smoking sometime in ...
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Are there any aircraft that come with interchangeable flightdecks?

With the new Boeing 787 where Boeing has provided the capability to swap engine types if the aircraft goes to a new operator quite quickly, I'm wondering if there are any interchangeable flightdecks? ...
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Why is braking action (with Anti-Skid) best when the wheel rotates at ~85% of the actual speed?

During my ATPL training the subject of tires and braking was discussed. I understand the principle of the anti-skid and also the differences between aircraft and similar systems in cars. Physics also ...
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Has Airbus planned to build a larger version of the A380?

The current Airbus A380-800 could carry over 800 people. Has Airbus planned to build a new, larger version that could carry 1000 or more passengers?
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Are there risks if the side joystick must be handled with a pilot's weaker hand?

Suppose that a first officer were left-handed and a captain were right-handed. Both are NOT ambidextrous. Even after training, what if their weaker hands' control and degree of versatility remain ...
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Why do some airports have to put 2 jetbridges on one aircraft?

At a gate in Denver Int'l there is a United plane with 2 jetbridges. Why do some airports have to put 2 jetbridges on a plane? Is it necessary?
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Why do aircraft manufacturers produce families of aircraft?

Let's take the case of the Airbus A320 family of aircraft. Airbus manufactures A318, A319, A320 and A321 planes, which all belong to the same family. What is the need to manufacture multiple aircraft ...
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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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How do airlines make sure that pilots remain skilled enough to operate aircraft? What quality assurance is there for certified pilots?

What measures are in place to prevent pilots from being put in charge of passenger planes without an appropriate level of training and skill? Are these measures enforced equally by different countries,...
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How many pilots does an airline hire for each new plane they purchase?

I guess this would depend if the airplane is narrow body or wide body because wide body airplanes make longer trips. Another way to ask this question is what is the ratio of airplanes and pilots in an ...
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When do conditions permit doing a controlled fly-by over the runway of a commercial airport?

A lot of people reading this probably saw Top Gun and remember Maverick performing a fly-by over the deck of the USS Enterprise (in spite of being explicitly ordered not to do so), or saw air shows ...
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What are the aircraft requirements to legally offer commercial sightseeing flights in a C-172?

When I retire in a couple years I want to fly my 172 and make some money. Even if I just break even that's ok. My CFI certificate has expired and I don't want the hassle of having it re-instated. I ...
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Are there any airports that do not have an IATA code but have a huge number of traffic?

I am collecting a list of all airports in the world for my project, at present I have 46000 airports in my database but only 7000 airports have IATA code. So my question is, if I only take 7000 ...
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Are CVR and FDR reset after every flight?

Recording the thousands of parameters and voice conversations must take a huge amount of storage, and so I am wondering, how frequently is this data "deleted", so it can be used again? For example, ...
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Is the takeoff power always maximum?

I used to think that for commercial aircraft from Airbus, Boeing, Embraer, etc., the take off power was always maximum and selected by the TOGA selection on the thrust levers. But I have been told ...
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Is there an audible warning on commercial aircraft if you try to land gear up?

In one of the comments on this question (under the accepted answer), someone remarks that Aircraft can legally fly without a system to alert the crew when they are landing with gear up, etc. Are ...
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Which airplane types never crashed? [closed]

Is there an airplane that never crashed? Or more specifically, without any crash history on any database. By crash, let's say any accident / incident which resulted in damage to the airplane and/or ...
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Could winds of up to 150 km/h impact the structural loads on a Boeing 777?

From 15 October 2016, AI 173 from Delhi to San Francisco started flying over Pacific. Jet streams over Pacific helped Air India in reducing the flight time by 2 hours, despite increasing the travel ...

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