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Questions tagged [electronics]

Electronic devices including cell phones, iPads and laptops.

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4
votes
1answer
99 views

Aviation Embedded Systems

I would like to understand the design philosophies of aviation embedded systems that provide real time control and instrumentation like EICAS/FMS/GPWS & TCAS. What kind of embedded OS platforms ...
0
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0answers
103 views

What is the working principle of VFG [duplicate]

How does the VFG make various frequencies? And while it makes the other value of frequency, how the generator apply consistent 400Hz to the other component?
-1
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1answer
158 views

Can I carry a waveform generator with me inside an airplane? [closed]

I have recently learned that I have an urgent domestic flight tonight. I am curious about whether I can carry the device with me. The device I want to carry is 33120A Arbitrary Waveform Generator. I ...
2
votes
2answers
106 views

Redundancy in Integrated modules avionics [closed]

What kind of hardware redundancy is used in integrated modules avionics based architecture for EFIS displays running on a single processor? My question is specific to redundancy of display hardware ...
11
votes
1answer
740 views

Are there any standards on the dimensions of PFD symbols?

Are there industry standards on dimensions of PFD symbologies like heading, airspeed and altitude? I want to design a 15 inch screen and wonder if there are any standards or regulations regarding the ...
0
votes
2answers
1k views

What is the standard power supply and voltage supply on modern airliners?

I'm looking at reducing the weight footprint of some of the computer systems on a commercial liner. A big consumer of weight seems to be in power supplies and conversion. Being a computer guy, I don't ...
0
votes
3answers
153 views

Are piezoelectric energy harvesters too expensive to be used commercially as a power source in drones or small aircraft?

Piezoelectric energy harvesters can draw energy from the mechanical loads and the vibrations in the fuselage/wings/blades of aircraft. What are the disadvantages of such a system being used as an ...
0
votes
0answers
74 views

Where can I find power and heat specifications for EFIS and IFE systems?

I am working on an MSc. thesis project about the electrification of aircraft. Since the rule of thumb is to design the generators for the worst case scenario, I would like to include as much ...
12
votes
2answers
1k views

Do military jets' radar jammers block their own radar? And, if not, why not?

Will a noise jammer block the fighter's own radar? If I have understood it, a noise jammer, e.g., a barrage jammer, will emit a noise signal across a wide frequency band. Won't this make it hard to ...
4
votes
1answer
480 views

What is the data size of Hilton Software's WingX Pro 7 app and all of its databases? [closed]

What is the data size of the WingX Pro 7 installation files and databases including the app itself and the VFR Sectional, IFR Low Enroute, IFR High Enroute, and the full "All Charts(IFR)" databases? ...
20
votes
2answers
4k views

How stable is the “customer” power on a commercial aircraft?

This question on Travel.SE got me thinking... Just how stable is the power that's available via the outlets in the passenger cabin on a modern, commercial aircraft? My assumption in my answer that it'...
7
votes
2answers
1k views

Could a terrorist hack the ILS?

I'm reading all these reasons why consumer electronics can't be on during takeoffs and landings and one specific reference that is made over and over again is the sensitivity of the ILS equipment. I ...
-1
votes
1answer
265 views

What happens when a capacitor is supplied with a higher voltage than intended? [closed]

When a capacitor is supplied with a voltage of a higher frequency than intended, what will happen? Does the capacitor 'overheat' or 'resonate'?
8
votes
1answer
2k views

In case of failure in the Electronic Flight Instrument System, how would they be transferred between each other?

In EFIS, in case of failure in the PFD, where would be PFD shown? In case of failure in the ND, where it would be shown? In case the PFD & ND both fail, where would they be shown?
5
votes
3answers
834 views

Can large airliners such as a 747 maneuver without electricity?

Small aircraft have the flight controls physically linked to control surfaces by some kind of cable and pulley system. For a large aircraft such as a 747, are the control systems mechanically aided ...
1
vote
1answer
194 views

How does the control-board on small drones govern their flight?

I saw this YouTube clip for a light weight drone, under a few ounces, with very impressive maneuverability. They used styrofoam for frame and taped the rotors and battery and the control chip to it. ...
4
votes
2answers
6k views

What is the encoding difference between ARINC 429 BNR and BCD formats?

I think I have an understanding of the differences between the types of ARINC word formats, but would just like to get some input to see if my understanding is correct. In the ARINC 429 specification, ...
8
votes
2answers
306 views

What measures can the aerospace industry take to deal with changes in the electronic industry that are incompatible with its own conservatism? [closed]

The development of computer flight systems is characterised by lengthy certification processes, exceptionally rigorous testing regimes and a default position of extreme caution. A change in any ...
12
votes
2answers
3k views

How does new media streaming technology equate to fuel cost increase?

In regards to this article on BBC, which discusses the use of streaming technology to allow passengers to watch films/TV shows etc. on their portable devices, the following statement caught my eye: ...
54
votes
6answers
13k views

Instrument landing: why do all electronic devices need to be shut off?

A few days ago, I took a flight home. Towards the end of the journey, the captain asked us to shut down any electronic device that we had on board, including iPods, CD players, phones and so on, ...
4
votes
0answers
47 views

Instrumented landing: why switching *everything* off [duplicate]

Few days ago I took a flight to go back to my town. Towards the end of the journey, the captain demanded us to shut down any electronic device that we had on board, including iPods, CD players, phones ...
7
votes
1answer
262 views

Have objective and verified tests been done of the effects of personal electronic devices on a commercial airliner's operation?

Have any governmental agencies done comprehensive tests on the effects of personal electronic devices used in the cabins (and cockpits) of commercial airliners? With the ubiquitousness of cell ...
8
votes
4answers
845 views

If turning off electronic gadgets is so important, why are there no detectors used to find them?

It's supposed to be that electronic gadgets' emission are dangerous for airplane systems. If this is true, why don't they use any detectors to locate such emissions?
12
votes
6answers
9k views

Do commercial aircraft have electrical outlets?

As we see trains nowadays with sockets for you to plug your laptop into, as well as Wi-Fi on-board both trains and planes, I'm wondering why you don't see electrical outlets on planes? Do any ...
9
votes
1answer
642 views

Are there regulations or adverse effects regarding Bluetooth in the cockpit?

Are there any FAA regulations concerning wireless Bluetooth headsets in the cockpit of any aircraft? Moreover, I'm interested in finding out if the Bluetooth protocol (IEEE 802.15.1) will adversely ...
21
votes
5answers
4k views

Could a Personal Locator Beacon or EPIRB carried by a passenger aid in locating a downed airliner?

There've been a lot of questions lately about tracking aircraft, and after a conversation with a friend of a friend I started wondering: Could a PLB or EPIRB carried by a passenger or crew member aid ...
10
votes
1answer
459 views

How do airliners facilitate in flight calls for mobile phones?

How does an airline facilitate in-flight calls for mobile phones? I would guess that over open water in flight calls are relayed by an on board link to a communications satellite. Such a system ...
29
votes
8answers
12k views

Why aren't cell phones allowed to be used in aircraft?

What problems do cell phones cause? How is using a cell phone in the air different than using it from the ground?
20
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3answers
6k views

Do pilots using an electronic flight bag need to carry paper charts?

If a pilot uses an electronic flight bag (say, an iPad with ForeFlight or WingX), are they required to carry paper charts as a backup? Do different rules apply to operations under Parts 91, 121, and ...