A FDR is one of two "black boxes", used to record pilot input and aircraft parameters for the purpose of investigation of accidents and incidents.

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How does a CVR / FDR determine when to stop recording?

For example, the CVR records only about 2 hours of data. Overwriting important data must be avoided, and thus the recorders should know if a catastrophe has happened. Then they can stop recording (to ...
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282 views

Are military aircraft required to have black boxes?

In the United States, the FAA requires certain types of aircraft to have a Flight Data Recorder (FDR) and/or Cockpit Voice Recorder (CVR). I understand these regulations to apply mostly to civil ...
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Does the FDR record data about the cockpit door lock system?

Does the flight data recorder record whether the cockpit door lock was deliberately used to lock someone out?
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42 views

CCTV in cockpits or elsewhere? [duplicate]

If we have FDRs for flight events, CVRs for cockpit sound recording, is there a reason CCTV is not prevalent in at least cockpits?
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183 views

Are plane's black boxes essentially useless tool in the modern age and how to improve upon it? [duplicate]

I am just reading the latest news on the air plane crash that happened couple days ago and it dawned on me that one too many times have I read a story where after black box is obtained, it provided no ...
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33 views

Why is the information from the FDR and the CVR not automatically backed up to a computer on land? [duplicate]

I am no expert at this whatsoever, just curious due to the fact that Air Crash Investigation is my favourite TV program, and it's always imperative that they find the FDR and CVR. Why can't the ...
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529 views

What are the data elements shown on the GE235 flight data recorder (FDR) plot?

The Aviation Herald already has an image of the Flight Data Recorder information from the crash of TransAsia GE235: (click to enlarge) I have determined that the green lines are for engine 1 and the ...
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139 views

Whats the form of information stored in black box?

Black boxes contain the information regarding to a flight. What is the form of those information? Any particular language log?
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125 views

How do airlines (or the government) retrieve information from the black box of an aircraft?

When black-boxes are found, how is the information retrieved from within the data storage? Is there a special kind of device used for this?
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Do flight recorders have expiration dates?

After the recent announcment of the recovery of the flight recorders of AirAsia flight were recovered, I was wondering if black boxes deteriorate after a set amount of time. As of now, nothing of the ...
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Why are flight recorders generally located in the tail?

Is there a particular reason why FDRs and CVRs and associated similar bits of equipment are kept in the tail section of a plane?
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Why don't airlines have in-flight video recordings like buses do?

That way we could study plane crashes more closely, or terrorist hijackings, or resolve passenger disputes. Even buses in Ecuador have video cameras.
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Do fighters have black boxes?

Or is it just commercial aircraft? I was watching an episode of Scorpion where an "F-120 Firehawk" crashed and they looked at its black box. So, do normal, non-imaginary fighters have them?
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If we add a video recorder in the cockpit to complete FDR/CVR, will we add a blackbox? [closed]

The introduction of a video recorder in addition to the current audio and flights parameters recorders used for crash investigation (CVR and FDR) is suggested by this article (published in the New ...
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481 views

Why are FDRs and CVRs still two separate physical devices?

Given the histories of flight data recorders and cockpit voice recorders, I somewhat understand their origins as two separate physical devices. Given their separate tracks of development, regulatory ...
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1answer
208 views

What are the measurements for a “Black Box”? [closed]

I was wondering as to the measurements of "black box" recorders. I have a new invention involving the "Black Box" and I need to know the measurements of the recorder.
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127 views

Are there any proposals to continuously stream “black box” data? [duplicate]

After an aircraft incident, finding the black box is important to investigate the causes, because it contains a lot of valuable recorded data. The process of locating this can take a lot of time, and ...
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1answer
94 views

Constructing flight recorder data [duplicate]

By just going off the public information about a flight and what one knows about an aircraft, is it possible to construct a differ version of a flight recorder's data well enough to fool ...
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Can flight data recorders be hacked?

In the event of a plane crash such as MH17, and the flight data recorders (FDR, a.k.a. "black boxes") are potentially in the "wrong hands", is it theoretically possible to: open the FDR and close it ...
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1answer
414 views

Who legally owns the Flight Data Recorder?

Who legally owns the Flight Data Recorder after an aircrash? Who is responsible for retrieving it and/or allowed to retrieve it? And how is it decided who carries out the crash investigation?
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Can airplanes transmit/relay flight data to ATC's periodically while in flight? [duplicate]

The flight data recorder is one important piece of information in the event of a crash. Can this information not be transmitted or relayed to the ATC's while the flight is air borne so that they don't ...
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1answer
80 views

Depth and range for FDR/CVR black box detection [duplicate]

What is the maximum depth range of a FDR underwater, at which it is able to be detected by receivers? I want to know the maximum range of ULB pinger locator if it's submerged.
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Why is the FDR and CVR put into water again after a water crash?

When a plane crashes in the water and the investigator team looks for the FDR and CVR, why do they put it in a container of water when they find it ?
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What is a flight leg and why it is so important for an aircraft?

A flight leg is basically flight from one point to another point, (I'm not sure if flight leg number increase with touch and go around). I would like to know more about flight leg under what all ...
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Is there anywhere I can pick up raw flight data recorder information?

We were plotting flightpaths as practice in programming class but unfortunately that was limited to some recordings from a research aircraft. I'm wondering if I can pick up the raw data files from ...
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How much data do FDR and CVR generate on commercial jets?

I'm wondering about how much CVR and FDR data an A320 (for example) would produce and at what intervals. I believe that there are 4 or 5 voice channel and several sensor data things. I'm trying to ...
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1answer
68 views

Format specification for Avidyne R9 flight data?

The Avidyne R9 records flight data five times per second and can export it for later analysis. I'm interested in parsing this data and exporting it to Google Earth / X-Plane for visualization. ...
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Could you encode data in a Black Box ping?

Black boxes put out a sonar ping at about 32kHz. From what I've read, depending on sea conditions the ping will be audible at the surface out to about 16 km, leaving a search area of around 1024 ...
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265 views

What protects the location beacon (pinger) of a flight data recorder?

The pictures of flight data recorders show that the location beacon (pinger) is outside the main protection encasement: Is it really a good idea to keep such a vital instrument unprotected? Or is ...
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Do flight recorders need more efficient antennas?

At a frequency of 37.5 kHz, a quarter wavelength is about 2 km (1.24 miles) long. How does the black box efficiently radiate anything if it is not attached to 2 km of antenna?
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How much water pressure can flight recorders withstand?

How deep can black boxes go under water and how much pressure can they withstand while under water before they get crushed? I'm a layman in terms of aviation, so if it's not too much to ask, can you ...
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6answers
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Why are FDR's called “black boxes” when they are actually orange?

Why do they call flight data recorders a "black box" if it's orange in color? Just curious about this since I've seen several images of black boxes but they all come in orange colors, and not black. ...
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Why don't black boxes have their own GPS?

In too many cases of unfortunate incidents, hunting for FDR (or CVR also) is a major challenge.1 There are many or all answers recorded on that device. Why a locator (GPS linked) cannot be included ...
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Can the FDR be interfered with in-flight? [duplicate]

Can an FDR on a Boeing 777 be interfered with or vandalised during flight? If this has happened on MH370 then the black boxes may not yield any data if found.
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477 views

Why don't they have two black boxes? [duplicate]

Why is it that black boxes don't float? From what I gather the answer is: So they will not float away from a water crash site. The ping can be heard underwater with sonar. Finding the ping, ...
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1answer
701 views

Black boxes: great for crashes on land. How about additional “floaties” for water crashes (low-tech, light, cheap) [closed]

Without getting into the mess of redesigning existing Flight Data Recorders, I have a simple proposal that I think would help in deep water crashes. I propose that several floating cushion sets be ...
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4answers
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How close do you have to be to an underwater black box to detect it?

The news keeps talking about the black boxes on aircraft that end up in water, and one thing that keeps coming up is the underwater locator beacon that transmits a signal for 30 days if it gets wet. ...
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How is data transmitted to CVR and FDR?

A recent news item mentioned that "black boxes" are typically stored in the tail section of an aircraft to maximize their odds of surviving a catastrophic incident. If they're stored in the rear of ...
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Is it possible for the sensors which determine when an aircraft has landed in water to become damaged?

A plane has sensors that should transmit data back somewhere when it hits water correct? Is it possible that these can be turned off/damaged?
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What happens to the transponder, FDR and CVR in case of an explosion?

Will the above mentioned equipment still work and transmit data/location information if an explosion occurs inside the aircraft?
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Do aircraft manufacturers produce their own black boxes?

Do the manufacturers who build airplanes use their own "black boxes" in the planes, or are there companies whose sole purpose is to develop black boxes? For example, in 2010 in the Airblue Flight 202 ...
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Like transponders, can flight data recorders be turned off?

I never knew much about airplanes before the tragic incident of Malaysia 370. I have been spending a lot of time on Twitter reading various articles and investigations; in one of the articles I read, ...
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398 views

What does flight categories “C”, “G”, “T” etc. mean? [closed]

In a flight database that I'm working with on a project, there is a column of data called "flightCategory" with values "C", "G", "T", etc. Any idea what those actually mean? From what I understand, ...
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Do flight recorders float in water?

In a recent BBC article regarding the disappearance of Malaysian Airlines Flight 370 (MH-370), the writer refers to a US Naval officer's statement: Commander William Marks from the US Seventh ...
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Which aircraft are required to have a black box?

When is an aircraft required to have a Cockpit Voice Recorder or a Flight Data Recorder?