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 does the C* (Cstar) parameter demand ?(A320)

I have been reading a LOT of research papers and many articles, but none of them tell how the C* parameter in Airbus is used for the vertical augmentation of the aircraft. I am aware that with a ...
Shogunrv's user avatar
11 votes
4 answers
8k views

Why don't Airbus planes have perfectly smooth front sections?

From time to time I like to watch a planespotting video and I must say that one tiny detail bothers me a slight bit. Look at this Boeing plane: And at this Airbus: In particular, examine the section ...
scrrr's user avatar
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1 answer
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What is the thickness of an A320 radome?

What is the thickness of an A320 radome? This is needed to run some simulations.
Navoneel Karmakar's user avatar
8 votes
1 answer
2k views

Visually see flap settings from passenger window behind wing

I've flown on a lot of Airbus and seen a lot of trip reports on YT and wonder if you can visually see the different flap settings (if you are seated at a window behind the wing), for example Up, Flap ...
DilKent's user avatar
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By how much did the content of the Airbus A320 FCOM expand over the last 40 years?

The Airbus A320 has been in service for almost 40 years now. I imagine that the current manuals are much larger than the manuals provided in the 80s, mainly for three reasons: The newer models ...
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Why is Airbus' FCOM structure so different from EASA's recommended OM-B structure?

aicraft operators are allowed to publish their own operations manuals part "B" and in the past, have done so. I nrecent years, many operators revert back to "plain old vanilla" ...
Ulu83's user avatar
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What is the protruding element on the vertical tail of this Airbus Zero E concept?

The TurboFan concept of Airbus Zero E has a protruding element on the top of its vertical tail, see the image below. Image source Zoomed image Only this variant of the Zero E has it, is it related ...
ROIMaison's user avatar
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Airbus pilot Standard call out

For airbus pilots,when they Encounter a Master caution or master warning,what is PF's Standard call out? "I have a control and communication,ECAM actions.", OR just "ECAM Actions."?...
afanti's user avatar
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17 votes
2 answers
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Why did Airbus mix "colored light means ON" and "colored light means OFF" in the overhead panel?

Disclaimer: I don't have a real Airbus A330 at hand, nor am I a pilot. After having crashed twice due to icing in rainy weather (not to talk about that here) with an Airbus A330 in X-Plane 12 ...
U. Windl's user avatar
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2 votes
0 answers
100 views

In the last year, did Airbus make any changes to existing or newly built A220s control panels or AT/AP software?

As reported in various places (e.g. by simplyflying.com), there were two near-catastrophes in the A220, not because of the widely-discussed engine topic¹, but because of how autopilot & ...
Sixtyfive's user avatar
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6 answers
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Scared of flying in an Airbus A220

The A220 is exclusively powered by PW1500G geared turbofan engines, which have a history of reliability issues. Multiple airlines grounded their entire A220 fleet amid engine concerns (A220 Engine ...
Jim's user avatar
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0 answers
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Alternative methods to determine A-320 (Pegasus R1A) Optimal FL

320 FO looking to see if anyone knows a method to determine optimal flight level (essentially compute optimal step climb point) from the F-PLN page. I’m well aware of computing optimal S/C from the ...
Cether's user avatar
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10 votes
1 answer
5k views

Why do Belugas keep executing a go-around?

I live under the approach path for the Airbus facility in Hamburg and very often a Beluga executes a go-around. It is quite loud since when it pitches up the engines are pointing at my house. I wonder ...
Joe Bentley's user avatar
1 vote
2 answers
137 views

Is there any information regarding the combustion efficiency of LH2 over kerosene?

Taking as reference the airbus A220 it needs around 22000 lt of kerosene to be filled. Is there a rough analogy of how much LH2 would the same aircraft need to operate in similar ranges. Of course ...
qsct's user avatar
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0 answers
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Airbus A320 Business class seats power

I have acquired a pair of old business class seats taken from an Airbus A320. They have old 4:3 individual screens and power reclining and massage chairs. Wonder if anyone could guide me to powering ...
Nuno Bastos's user avatar
8 votes
2 answers
2k views

Why do Airbus A220s manufactured in Mobile, AL have Canadian test registrations?

I noticed that there are occasionally test flights by Airbus A220 aircraft in and out of the Airbus production site at Mobile, Alabama (KMOB). Some of these aircraft use what are presumably test ...
Ashley Strout's user avatar
16 votes
3 answers
5k views

What is this Lufthansa passenger jet plane, based on these three photos?

I took a plane in February 2006 from Lufthansa, I think it was an Airbus A340 but not so sure. Can someone help me identify exactly this plane? (Don't mind the ostrich) Here is the outside of the ...
pbonnefoi's user avatar
  • 435
2 votes
2 answers
167 views

Why would a lower trailing edge angle allow for more rear-loading?

In reading a paper on transonic aerodynamics by Jeff Jupp (Chief Wing Designer for the A310), he states, "the trailing edge angle in modern airfoils is reducing significantly, almost to zero in ...
interested22's user avatar
6 votes
1 answer
266 views

on the airbus A320 does applying rudder and tiller sum up?

on the airbus A320 while taxing, does applying rudder and tiller sum up the turn? if so where is it mentioned
Deepak's user avatar
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7 votes
2 answers
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What is this plane, based on its wing?

Here is the picture of the wing of a plane. Does anyone know which plane it is? The flight number was AF 1834 going from Paris CDG to Berlin Tegel in november 2015. The plane was from Air France and ...
pbonnefoi's user avatar
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Why can some aircraft not fly near the north pole?

The Adiru on the Airbus 320 has an limit like 84°N latitude. What happens if the plane is flown above that latitude?
Deepak's user avatar
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4 votes
1 answer
161 views

What does 'category' mean in the NEW NAVAID menu of the Airbus FMS?

I tried to create a NEW NAVAID in the Flight Management System because I was simulating a flight to an airport that is not in the database of the FMS. What Category is Airbus referring to in the MCDU ...
tamimaflah's user avatar
8 votes
2 answers
2k views

What is the essential purpose of making three control laws in Airbus aircraft?

Airbus has normal law, alternate law and direct law. What was the need for specifically making each of these three laws? What benefit does each one offer over the others? Also, why does Airbus degrade ...
Sachin Chaudhary's user avatar
3 votes
1 answer
195 views

On the A321neo, what determines the 'time to land' when an Additional Center Tank System Fault is triggered?

On the A321neo, the QRH has a procedure in the case of a ACT (Additional Center Tank) System Fault (Found in the QRH under Abnormal and Emergency Procedures, Fuel). When such a fault occurs, you must ...
user38116's user avatar
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0 votes
1 answer
440 views

Why descend after a single engine failure in an Airbus?

The procedure says to descend to lrc ceiling. But, why do we need to descend? The aircraft is still able to maintain speed even at higher altitudes, at FL300, in FS2020, it was maintaining around 215-...
Sachin Chaudhary's user avatar
0 votes
2 answers
426 views

How is Airbus A320 cockpit philosophy designed?

I believe there is a reason behind a particular design especially in aviation. I wanted to know how A320 cockpit was designed ?. For example: Why is RCDR, EMER ELEC PANEL is on the left side of the ...
Krishna Kanth's user avatar
3 votes
1 answer
539 views

What's the difference between taking priority and taking over the other sidestick in Airbus?

I know that on the sidestick, there is a button to disconnect the autopilot, and also to take control of the aircraft over the other side. However, I'm confused about what the difference is between ...
Spencer M's user avatar
3 votes
1 answer
280 views

Do Rolls-Royce Trent 700s (on the Airbus A330) automatically spool up when selecting *only* idle reverse?

I recently rode in the jumpseat of an A330 during a flight. Quickly after touchdown, the PF selected idle reverse, and no further. As soon as he did so, I could hear the engines begin to spool up, and ...
Charles Nicholson's user avatar
5 votes
1 answer
7k views

Why does the "retard" command on the Airbus sometimes continue after the thrust levers are already at idle?

There are many examples where the PF will place the thrust levers at idle and the "retard" command will continue sounding. Here are some examples: 1 and 2. Note that I am not referring to ...
Charles Nicholson's user avatar
3 votes
1 answer
751 views

Would the FAA let me fly a plane with no windows? [duplicate]

Back in 2014 Airbus patented several designs for airplanes with no cockpit windows. Would the FAA let someone (fully-certified for IFR) fly an airplane with no cockpit windows?
Roger's user avatar
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4 votes
1 answer
486 views

What is the difference between the two fields on the bottom half of the upper ECAM display on Airbus airplanes?

Note the two fields with green text on the bottom half of the display, separated by a white line. During abnormal conditions, the left portion may show "ECAM actions," but I do not know what ...
Charles Nicholson's user avatar
6 votes
1 answer
204 views

Why are there no protection symbols (=) for high AOA protection on Airbus aircraft?

Green protection symbols (=) are displayed for many protections on Airbus aircraft, such as for bank, pitch, and high speed protection. However, there is no such symbol for high AOA protection. Rather,...
Charles Nicholson's user avatar
12 votes
2 answers
2k views

What does this 'R' number mean on the ND of this Airbus?

This number here, what does it mean?
Cherona's user avatar
  • 222
0 votes
1 answer
3k views

What's the difference between ACARS and ATSU?

I've seen ACARS and ATSU used interchangeably and I've seen references that imply they're different things (ATSU being Airbus only). How would I explain the difference to someone?
J.J.'s user avatar
  • 21
4 votes
1 answer
657 views

Airbus' official language

I would like to know which language Airbus uses when they create the original version of their official documents. So.. which language do they use? German or French?
moon's user avatar
  • 401
2 votes
1 answer
2k views

What is the difference between A321neo and A321neo LR?

According to the illustration on this Airbus webpage about the A321Neo XLR, the A321Neo has 3500 NM range and A321Neo LR has 4000 NM range which is in conflict with this Airbus website about the ...
Krishna Kanth's user avatar
7 votes
1 answer
1k views

Why do the ailerons on an A320 droop when the engines are shut off and the 787 ailerons dont droop when the engines are shut off?

I have been wondering why the ailerons on the A320 (and other Airbus aircraft) droop when there is no power from the hydraulic pump. From my understanding of hydraulic actuators, the position where it ...
John's user avatar
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4 votes
1 answer
1k views

What is "taxi speed" for an Airbus?

In the FCOM we can see a lot of "taxi speed", for example after landing: AT TAXI SPEED, ALL REVERSER LEVERS......STOW But what is taxi speed? Is there any definition or particular number? ...
William Cat's user avatar
8 votes
1 answer
871 views

Can air traffic control see control panel selections (I.e. FCU on A320 or MCP on B737)?

I have flown with a few captains that have told me that air traffic control can see the settings we set on the FCU (or MCP on B737): Is this actually correct? I'm aware that ATC can see what speed, ...
user38116's user avatar
  • 453
4 votes
3 answers
660 views

Comparisons between the A340 and 747-200 wing: sweep angle and span

Here is a picture of the wings of the A340 (launched in the late 1980s) and the Boeing 747-200/400 (launched in the early 1970s / 80s) superimposed upon each other (source: https://www.amazon.com/...
interested22's user avatar
5 votes
1 answer
2k views

Why is 5 seconds the time to respond to a TCAS RA?

With TCAS, the time to respond to an RA is 5 seconds (2.5 seconds for a reversal RA). The FCOM states that the TAU (estimated time) before the aircraft intruder reaches the "Closest Point of ...
user38116's user avatar
  • 453
4 votes
0 answers
276 views

Is Airbus offering to retrofit older A350s with the new winglets?

I noticed that new winglets (sharklets?) on the A350 are extended as part of the PIP (Performance Improvement Package). Are older A350s being retrofitted with the new sharklets? Does Airbus even offer ...
user928112's user avatar
1 vote
3 answers
325 views

How has Computational Fluid Dynamics improved commercial airliner wing design?

Starting the 1980s, extremely powerful computational fluid dynamics software has been used to design wing sections and whole wings. I am going to focus on the Boeing 777 as an example of CFD applied ...
interested22's user avatar
10 votes
2 answers
3k views

How have engineers managed to increase commercial airliner wing aspect ratios over time?

Over time, the wing aspect ratios of commercial airliners have increased. For evidence ,see the following data: 1980s: Boeing 747-400: 7.91, Boeing 757-200: 8.0 Boeing 767-300: 8.0 Airbus A310: 8.8 ...
interested22's user avatar
-1 votes
1 answer
432 views

Why didn't ejection seats become a thing in civil avation and only limited to military? [duplicate]

Recently, an Indian CDS Bipin Rawat and his family as well as eleven members of the Indian Army died in an helicopter crash. You can find the story here. I did look at any questions asked on the topic ...
shirish's user avatar
  • 949
5 votes
1 answer
531 views

Does aircraft manufacturers provide option to exchange older models?

Most of the vehicle manufacturers provide exchange value for older models when buying a newer one. Like you can exchange your old BMW 3 Series for new 3 Series or upgrade to 5 Series and so on. Is ...
Gokul Nath KP's user avatar
0 votes
1 answer
1k views

How does the Boeing 737's implementation of RNAV and VOR approaches compare to Airbus? [closed]

How does the Boeing 737's implementation of RNAV and VOR approaches compare to Airbus?
Tuğçe dilek's user avatar
1 vote
0 answers
55 views

Why do the landing gears of Boeing 767 and certain Airbus aircraft tilt down? [duplicate]

I need help and some explanation on why are they sometimes tilted down instead of up.
Pagong27Gaming's user avatar
0 votes
1 answer
2k views

Why doesn't Boeing use supercritical airfoils?

It's my first question & I really want to know the answer from professionals to decide if my new design of airfoil is worth it because the initial test by CFD software (Fluent-ANSYS) indicate that ...
Miracle Airfoil's user avatar
0 votes
0 answers
54 views

Is it possible to continue flying without electric power? [duplicate]

To be specific with the question, I would like to know if if it is possible to continue flying in the event of total loss of electrical power. Obviously, I know this entails the shutting down of ...
Golden's user avatar
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