Questions tagged [airbus-a340]

A long-range four-engine widebody jetliner made by Airbus from 1991 until 2011.

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1 answer
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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/...
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2 votes
0 answers
109 views

How many smoke detectors does the A340 cargo deck have, and how are they wired?

I am a student of Aerospace Engineering, currently I am one year away from completing my degree. For my Electric Routing class I was asked to recreate in Catia the fire system in the cargo bay of an ...
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1 vote
1 answer
467 views

Why does only the right outboard aileron on the A320/340 float up when the aircraft is in the emergency electrical configuration? [duplicate]

When the A320/340's RAT is powering the aircraft's systems, the aircraft goes into its emergency electrical configuration; one of the effects of this is that the right outboard aileron becomes ...
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1 answer
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Why does an ADIRU 1 failure disable all functions of the A330/340’s GPWS - even those not requiring ADIRU data?

Among the many (many many) aircraft systems degraded or rendered unavailable to the flightcrew of QF72 as a result of a partial intermittent ADIRU 1 (Air Data / Inertial Reference Unit 1) failure, the ...
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10 votes
1 answer
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Why shouldn’t the A330/40’s speedbrakes be used in alternate law?

On page 30 of the ATSB report into the QF72 accident (page 50 of the PDF file of the report), in a table describing the actions required of the flightcrew in response to some of the ECAM messages ...
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1 vote
1 answer
502 views

What is that A340 cockpit panel on the glareshield?

I want to know the panel's name and how it works. This picture is an Iberia Airbus A340-600
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7 votes
2 answers
559 views

Why was the A340 developed with four engines?

The predecessor to the A340 program begun in 1982, when Airbus released the first specification of the designated TA9 and TA11 programmes and in 1986 the TA9/TA11 programmes were officially launched ...
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5 votes
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What does the A340's underwing bulge (plastron) look like?

From Wikipedia: From the start, engineers noticed that the wings were not stiff enough to carry the outboard engines at cruising speed without warping and fluttering. To alleviate this, an ...
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5 votes
1 answer
291 views

What is the outer kink on the airbus 340-600?

I was checking some information about the a340-600 and got this statement: "thickness/ chord ratios 15.25 per cent at root, 11.27 per cent at inner kink, 9.86 per cent at outer kink and 10.60 per cent ...
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1 vote
0 answers
317 views

Why doesn't the A330/A340 have a stickshaker?

When an A330/40 is in alternate law1 and approaching a stall, it has a stall warning composed entirely of a cricket chirp and a voice saying "stall, stall". Most other aircraft, in contrast, have a ...
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6 votes
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Why is the A330/A340's angle-of-attack protection disabled in alternate law, even if the AoA vanes are operating normally?

Reading about Air France Flight 447, to quote Wikipedia (emphasis added): ... A second consequence of the reconfiguration into alternate law was that stall protection no longer operated. Whereas in ...
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2 votes
2 answers
878 views

Where exactly are the pitot tubes positioned on the A330/340?

While going through a document for analysis I came across a statement saying the positions 1 and 2 of the pitot probes are symmetrical on long-range Airbus aircraft but not on their single-aisle ...
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13 votes
1 answer
1k views

Why are there non-standard altitude callouts?

I just saw a YouTube video with an A340 landing. There were the regular altitude callouts (1000, 500, etc.) until the callout "110". I was quite puzzled by this. What are the conditions that the ...
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4 votes
1 answer
231 views

Were any composites used on the A340 series?

Were any composites used in the construction of the A340? If so, which ones?
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11 votes
4 answers
4k views

Why has the A340 not been fitted with only three engines?

The A340 was created because the airlines wanted an aircraft they could cross the atlantic ocean with (They couldn't with their twins because of ETOPS so far). So Airbus upgraded the A330 and added ...
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14 votes
1 answer
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Is medical evacuation aircraft D-AIGZ "Robert Koch" protected against decompression?

In 2014, Lufthansa engineers converted a A340 into a medical evacuation aircraft specially equipped to carry contagious patients, e.g. with Ebola fever (D-AIGZ, "Robert Koch", msn 347). This aircraft ...
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7 votes
1 answer
974 views

What does the Airbus A340 Primary Flight Display look like during startup?

I'm developing a simulator addon and I'd like to accurately show what the A340 Primary Flight Display (PFD) shows during its startup sequence. I'm looking for any images, photos, documents or movies ...
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6 votes
2 answers
933 views

What do the various A340 configurations (clean, 1, 1+F, etc.) mean?

Could anyone describe (or direct to usable documentation) me aircraft configurations? What does it mean clean configuration, configuration 1, 1+F, 2, etc... Is there any section in FCOM's describing ...
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  • 377
5 votes
2 answers
642 views

Is it possible to reach an A340's fuselage from the ground?

There is this ATC recording where an A340 pilot requests to leave the aircraft and close the fuel panel on the bottom of the fuselage, while the aircraft is on a taxiway (the request is made at 2:50). ...
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