Questions tagged [airbus]

Based in France, and with significant activity across Europe, the company produces approximately half of the world's jet airliners.

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What are the reasons behind switching FDs off for a VOR approach?

Why do SOPs ask to switch off flight directors and enter Vapp into the FMGC while carrying out a VOR approach on Airbus aircraft? My question pertains to when we disengage the AP. Why do we carry out ...
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What is the APU actually used for?

What are the actual uses of the APU? When is it used? When does it go off?
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What is this very distinct humming noise coming from the IAE-V2500 engines of the A320 during taxi?

So I am a huge fan of the A320, and in a less broader sense, the A320 with IAE-V2500 engines. Arguably the greatest engines in the industry with the greatest sound. However though, I've had a question ...
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Why does Airbus suppress stall warnings in certain situations?

I was reading about Air France 447 and came across the line: The stall warnings stopped, as all airspeed indications were now considered invalid by the aircraft's computer due to the high angle of ...
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What is the 3 click sound when the autopilot is disconnected on Airbus aircraft?

On Airbus aircraft what is the 3 click tone that sounds once autopilot is disconnected? I have tried researching on the internet but could not find anything
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Why does Airbus not display the exact airspeed on the PFD?

On every other PFD (I know), the exact airspeed is displayed as big number on the PFD. To clarify what I mean, here are two pictures: Source, added square, Boeing PFD Source, added square, D10A EFIS ...
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A320: Why do SDACs supply all three DMCs?

On the Airbus A320, in the Electronic Instrument System (EIS), there are three Display Management Computers (DMCs): DMC1 supplies the upper ECAM DMC2 supplies the lower ECAM DMC3 is a backup. There ...
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How does an Airbus pilot decide whether to use HDG-V/S or TRK/FPA guidance?

The Flight Control Unit of modern Airbus aircraft has a pushbutton for selection of either heading / vertical speed (HDG-V/S), or track / flight path angle (TRK-FPA) guidance for the Autopilot and ...
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Why do some A320s have double-bogie landing gear?

I believe this is actually a rare sighting, but why do some A320s such as the VT-ESD have double-bogie landing gear? Does Airbus have a specific reason for making such A320s? Update: Found an image ...
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Is it possible to upgrade a Boeing 747-8 and Airbus A380's engines for greater speed?

Is it possible to upgrade the Boeing 747-8 and Airbus A380's engines (upgrading to a newer engines) for greater speed, if the engines were more efficient and used less fuel at higher speeds relative ...
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What is the noise that the A320 makes on the ground? [duplicate]

I've noticed that planes in the A320 family make a sawing noise on reaching the gate. The link below may give you an idea of what I mean (although the A320 in the video is still taxiing). Is this a ...
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What distinguishes the Airbus-Sidestick from an ordinary gaming joystick?

I don't think the Sidestick in Airbus aircraft is an ordinary gaming joystick that is plugged via USB into the Airbus Computers. I guess it is something very special, because it's one of the most ...
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Can I buy a A320 FCOM, FCTM and QRG as non-pilot?

I am very interested in the Airbus Systems. I really like the FCOM of the A320, there are some of them on the internet. However, I like holding physical books in my hands more, than reading them on a ...
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How much training does an A320 pilot need to fly an A321?

From flight simulation and from pictures, it appears that the cockpit of the A318, A319, A320, and A321 have few if any differences. Could an A320 pilot fly an A321 without further training? If not, ...
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Could the crew of XL Airways Germany Flight 888T not hear important chimes, due to the stall warning?

I am intensively researching on XL Airways Germany Flight 888T at the moment. I wrote and researched hours and hours. Now I would like to know something about the ECAM and the Airbus Stall warning: ...
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Is a Control Law Degradation in Airbus Planes displayed on the ECAM?

I would like to know if there is any warning displayed on the ECAM, when control laws get degraded from, let' say normal to direct law, other than the small text on the PFD. Also if there are any ...
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What does Airbus means by long product cycles?

I was reading this article. The article was about issues that Airbus may face if the UK does a 'Hard Brexit'. At the very end of the Article though, Airbus says Airbus makes wings for all its ...
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Why is the Airbus Beluga XL based upon the A330, and not upon the A350 or A380?

Airbus is developing the successor of the Beluga, called Beluga XL. The original one was based on a standard A300, while the new model will be based on the A330. Why is the new model based on a ...
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How is a wing joined to the fuselage?

I've seen this video from Airbus: This is a capture from that video: What is the process for attaching the wings to the fuselage?
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What kind of failover system do Airbuses with side sticks have?

Airbuses use joystick-style side sticks for controlling the aircraft. Among the features of this system is that there exists no mechanical connection between the joysticks and the control surfaces. ...
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How can you identify an Airbus and or Boeing from the inside based on features of the interior?

I already asked a very similar question, but the answer wasn't was I was expecting. Hence this time I am more specific. How can you recognize a plane from the inside, when you are already sitting as ...
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Why are the windshield wipers in the A320 power-up checklist?

I was watching the startup sequence for an A320 and it struck me as unnecessary minutiae to ensure the wipers are off before power on. Is there something important that I'm missing that puts ...
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Why is the A400M APU on the side of the fuselage instead of the back?

As you can see in this picture the APU of the A400M is on the side under the right wing, including the RAM-Air-Turbine. Why is the A400M APU on the side of the fuselage instead of the back? Why is ...
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How reliable is the Airbus FAC calculated gross-weight?

I've noticed some variation between loadsheet weights and FAC (Flight Augmentation Computer) calculated weight. That's of course normal, since loadsheet is calculated with standard weights and FAC ...
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What are the "high performance characteristics" of a Boeing 777?

News of the potential further stretch of the A350-1000 have seen pretty much all journalists discuss the "high performance characteristics" of the competing Boeing 777-9 with Middle Eastern airlines. ...
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Why do Boeing aircraft have serrated engine nacelles, but Airbus does not?

Why do Boeing's new generation of jets (787, 747-8, 777X, 737MAX) have serrated engine nacelles whilst Airbus' latest (A350, A320neo etc) do not? I understand that Boeing's nacelles reduce turbulence ...
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What kind of heaters are used for heated floor panels?

In some Airbus planes, they have heated floor panels. So, what kind of heaters are being used there?
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Why is horizontal stabilizer set to 4° up in airbus aircraft for take off?

Why is horizontal stabilizer set to 4° up ( or any other setting other than neutral) in airbus aircraft for take off? Why can't we keep the trim neutral?
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Do Airbus pilots have to practice flying in alternate law?

I am sure when getting their type rating for Airbus FBW aircraft, pilots learn how to fly in alternate and direct law. After that, how much opportunity do they get to practice this skill? On Air ...
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Why do Airbus sidesticks add their inputs?

There have been a couple of Airbus disasters where, in the confusion leading up to the crash, both pilots have attempted to control the aircraft with their sidesticks at the same time. In the absence ...
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Why are Airbus captain control sticks placed on the left when most people are right-handed?

Why is it that control sticks for the captains on Airbus are placed on the left? Wouldn't it be uncomfortable considering that most of the people, and by consequence pilots, are right handed? To my ...
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How is the battery power on the Airbus A340's electric system switched?

On the electric panel of the Airbus A340 there are three battery buttons (BAT 1, BAT 2 and APU BAT, indicated by (3) and (4) in the diagram) controlling battery charge limiters. When the aircraft is ...
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In Airbus flight control laws what does it mean that "control sensitivity depends on airspeed"?

Direct Flight Law: What does the following characteristics exactly mean regarding sidestick input at a very low airspeed (let us assume near stall speed). 'control sensitivity depends on airspeed' ...
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How would the Airbus A320 PFD respond to failure of all pitot and AOA sensors?

In theory, if all 3 pitot tubes and all 3 AOA-sensors would fail simultaneously for a period of time, could the PFD still deliver correct roll angle and horizontal displays? How would the plane ...
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How many angle-of-attack sensors does the Airbus A 320 NEO have?

Are there 3 x AOA-sensors on all the Airbus family planes? In the Airbus flight manual there is one AOA-sensor called 'stand-by'. What does that mean? Are all 3 AOA-sensors heated and can the actuall ...
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How do airliner manufacturers come up with typical capacities of their planes?

Instead of providing the maximum capacity of a particular model, airliner manufacturers often provide official typical capacities, like 280-366 seats for A350 series and 350/400seats for Boeing 777x ...
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Does Airbus have a production problem?

Looking up numbers for my answer to the A380 production question, it occurs to me that Airbus is facing a real inability to deliver its latest airframes. The A380 is currently sustaining a build pace ...
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Where do airplane variant numbers come from?

For example, the new B787-8 and B787-9. Is there any significance in why they started with -8, versus the older 737s which started from -100? Or B757-200/300?
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What does "composite panels on a frame" mean?

Reading about composite materials in the 787 on Wikipedia, I came across this: Carbon fiber, unlike metal, does not visibly show cracks and fatigue, prompting concerns about the safety risks of ...
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How is the cockpit rear view of an Airbus A340?

Before anything I know this can be sound something stupid and obvious, but I swear I lost 3 or 4 hours searching images and videos before posting this question. So please be mercy with my poor ...
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How is the lighting panel of an Airbus A340 designed and how does it work?

I'm trying to simulate the light switch panel of an Airbus A340 with real electronics components for a model in scale (I'm doing the electronics lights with leds). Taking a look at this PDF (page 129)...
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Could the Boeing 787-9 near vertical takeoff demonstration be performed by Airbus A350 aircraft?

I am an aviation enthusiast. A couple of months back I came to know about the difference between piloting Boeing and Airbus planes here. What are the main differences piloting Boeing vs. Airbus ...
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What is the pattern of the flashing light in Airbus A340-300?

I'm looking for the lights and flashing patterns of the Airbus A340-313 (or any Airbus A340). My question is related to this one: Do lights on aircraft flash in a specific pattern? but is very ...
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Is the emergency fluorescent floor lighting strip along the aisle an item on the MEL?

Was travelling on a Airbus A320 (night flight) and during the safety briefing noticed that the fluorescent floor lighting strip referred to in the evacuation instructions was totally absent. Both ...
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How does the spoiler actuation mechanism work on the Airbus A340?

How does the servo control spoiler actuation mechanism on the Airbus A340 work?
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What are the advantages of the Airbus New Engine Option (NEO) program?

Airbus is planning to roll out an Airbus A320neo to replace its current A320 model, and they will offer this option on other models too. How does adding more options for engines for potential ...
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How does the Airbus flight computer's voting system work?

From what I've read about Airbus planes is that their fly-by-wire system works by having three different flight control computers calculate what the plane should be doing and then vote on all the ...
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How is it possible for manufacturers to constantly get data from their planes all over the world?

I've heard that manufacturers (like Boeing and Airbus) constantly get data from their planes. So in the case of an emergency, ATC's or pilots can contact the manufacturers for assistance. How do ...
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What material is used to make luminescent placard on civil aircraft? [closed]

I'm an engineer working in the civil aviation industry. Currently my company is preparing to make some placards. I've downloaded the drawings from Airbus. A drawing calls up the material of AD400 TV25/...
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What is Brake To Vacate (BTV)?

Emirates has this feature on many of its A380s. From what I've read, the feature decreases the amount of runway an aircraft uses after landing. It also helps the aircraft achieve a certain exit way. ...