Questions tagged [software]

Questions about the software used in aviation systems.

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First airplane with software?

What is the first airplane equipped with software system? Any type of avionics with the computer code, probably the compiled file. I searched in Google, and it sounds like the F-8C Crusader jet ...
Cloud Cho's user avatar
  • 263
-2 votes
0 answers
75 views

Is it possible to design inverted boom mounted tail on XFLR 5? Specifically, the two booms connecting from wing to the tail [closed]

I don't know how to design an inverted boom mounted tail on XFLR 5.
John Client Aclan Ranis's user avatar
0 votes
0 answers
41 views

Bi-directional Conversion Between CAN and ARINC825: Software or Hardware Necessities?

community! I'm delving into a project that necessitates the conversion of ARINC825 bus input signals to CAN outputs, and vice versa, requiring CAN inputs to be converted back to ARINC825 outputs (my ...
Virgile's user avatar
2 votes
0 answers
57 views

Program to make glider polars

I was using flow5 to make some speed polars for a glider with real dimensions, however I read about PGEN (polar generation software) that could simulate the thermal effect, but apparently it is an ...
andy's user avatar
  • 135
1 vote
0 answers
207 views

DO-178 qualified source code obfuscation

I want to to perform obfuscation on the software that will be delivered the customer as a library or executable to prevent or at least make it difficult to de-compile the product. However some levels ...
653lover's user avatar
2 votes
1 answer
176 views

Is there a way to see what aircraft are based out of an airport?

Is there a software solution to determining what aircraft spend the majority of their downtime at an airport? Or perhaps aircraft with journeys that start and stop at a particular airport more than 60%...
Noah's user avatar
  • 458
3 votes
2 answers
2k views

XFLR5 vs AVL vs DATCOM vs OpenVSP

I am working on a model airplane and am coputing some of the data using software. I have already computed the general stuff using XFLR5 and AVL. My question is, is there any point for me to do the ...
Vincent Cerowski's user avatar
6 votes
2 answers
2k views

Are there certification requirements for software that is intended to be used in flight, but runs on uncertified hardware and is not safety-critical?

If I wrote a navigation app for pilots, designed it to run on non-built-in tablets, and included a disclaimer and warning not to rely on it (I would hire a lawyer for this part), would that be legal, ...
Someone's user avatar
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7 votes
3 answers
1k views

United’s 787-9 upgrade [duplicate]

I read this article about United increasing their performance of the 787-9. More specifically increasing thrust and range, But it says this will be done over software. How do you make an engine burn ...
Tylerb's user avatar
  • 93
0 votes
0 answers
342 views

What exactly does "efficiency" mean in XFLR5 wing analysis?

Can somebody please tell me what it is / how is it calculated? I initially thought it might be something with the Cl/Cd but I have another design with close to the same Cl/Cd, but with more than ...
Vincent Cerowski's user avatar
1 vote
1 answer
570 views

What is the difference between Jeppesen NavData & Digital Terminal Charts?

https://ww2.jeppesen.com/update-cycle-and-effective-dates-schedule/ in the link provided above, Jeppesen NavData has 28day cycle whereas Digital Terminal Charts have 14day cycle Can you provide the ...
Krishna Kanth's user avatar
2 votes
1 answer
146 views

Are there any external reviews of airplanes' control system software?

Is an airplane's control software source code open (or to some extent) to external review? I don't imagine it is open-sourced, but if it is completely a black box, how can we know that any accident is ...
Chengting's user avatar
  • 123
4 votes
1 answer
1k views

What CAD software is most commonly used for aircraft design?

What is most commonly used CAD software for aircraft design? AutoCAD, CATIA..?
user707264's user avatar
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2 votes
4 answers
668 views

What are the current challenges in software engineering for avionics? [closed]

I'm a software engineer working outside the aviation field, but I'm really passionate about avionics and I'd like to do my Master thesis in the area of software engineering for avionics. Unfortunately,...
Matheus's user avatar
  • 37
2 votes
4 answers
1k views

What are some possible uses of a Data Scientist in an Aerospace Engineering team? [closed]

Apparently, data science can be applied to the Aero industry, but how is a question that I still can't find an answer, and which proves to be incredibly elusive online. I don't mean the Business ...
temporario1001's user avatar
0 votes
1 answer
102 views

Do regulations require electronic checklists to be displayed on a cockpit screen or EFB?

As per regulation is it required to have the checklist (Normal and Emergency (drive by any alert)) as a part of the Cockpit Display System or EFB?
Hariom Singh's user avatar
2 votes
2 answers
1k views

What is the difference between Review and Analysis in DO-178C?

In the context of DO-178C, what is the difference between review and analysis of the outputs of the software development processes? Are they both the same?
Hariom Singh's user avatar
9 votes
3 answers
4k views

Can a IFR flight plan be amended or cancelled whilst in flight?

I'm asking, because ForeFlight states in their demo training video that an IFR filed flight plans can only be amended or cancelled up to 47 minutes prior to it being filed (and up to 2 hours after, ...
Lionel's user avatar
  • 149
0 votes
0 answers
912 views

What is a good and simple software for calculating propeller thrust and required power?

My main requirements: Calculate propeller thrust with big range of the altitudes (0 - 200 km) or to have air pressure input parameter, which I can type. For example pressure for 152 km is $4.98\...
Zlelik's user avatar
  • 183
2 votes
2 answers
866 views

Does DO-178C require static code analysis for level A software?

Does DO-178C have any guidelines on using static code analysis for level A software? As per Do-178C: Section 6.3 Software Reviews and Analyses Reviews and analyses are applied to the outputs ...
Hariom Singh's user avatar
2 votes
1 answer
351 views

Do the DO-178 standards include guidelines on cyclomatic complexity?

Is there any guideline related to the cyclomatic complexity of software that complies with the DO-178C or DO-178B standards?
Hariom Singh's user avatar
1 vote
3 answers
784 views

What DAL level is IFE software certified at?

An inflight entertainment (IFE) system has software for the computers and for the seatback displays. What DAL level is the software classified at?
testuser's user avatar
6 votes
3 answers
535 views

How is device control software checked for quality?

Many, many reports on the now infamous MCAS suggest a software patch is forthcoming in the next several weeks that will address the confounding single point of failure with the two AOA sensors that ...
Chris Wilson's user avatar
0 votes
2 answers
347 views

Is DAL-A required for twin-engine helicopters with FADEC?

When operating Twin Engine helicopter with FADEC controls, is is necessary to certify at DAL-A? If so, why? Is it related to the FADEC certification or is this required for an aircraft potentially ...
user37553's user avatar
3 votes
1 answer
554 views

Can the real time operating system used in aviation equipment be certified by itself?

Can the real time operating system used in aviation equipment be certified by itself, or must it be a part of some software certification effort? I'm asking for getting a certificate of 178C. I don't ...
Мария Панина's user avatar
10 votes
2 answers
5k views

Is there an audible warning on commercial aircraft if you try to land gear up?

In one of the comments on this question (under the accepted answer), someone remarks that Aircraft can legally fly without a system to alert the crew when they are landing with gear up, etc. Are ...
Cloud's user avatar
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3 votes
1 answer
2k views

What are these symbols in Garmin Pilot?

When I start editing a flight plan in Garmin Pilot, if I have a distance that is farther (like 1,000 nm or farther) I get these two symbols in the map on the Flight Plan pane: One is a tower and the ...
dawg's user avatar
  • 937
-6 votes
1 answer
239 views

Need Airbus A380 model in .xml format [closed]

i am looking for Airbus A380 aircraft model in xml language/ format. Can anyone provide? Or share the xml code?
Rumi's user avatar
  • 169
9 votes
1 answer
205 views

Is there a way to register for updates on certain NTSB investigations?

I would like to track the progress of an investigation of a particular accident, NTSB WPR18FA200. Some areas of the FAA website (advisory circulars, for example) allow users to register to receive ...
Steve V.'s user avatar
  • 23.2k
0 votes
2 answers
113 views

What website(s) can I use to plan an IFR route along airways? WORLDWIDE [closed]

I'm looking for a good website where I can create a IFR route including the airways. I tried route finder but it doesn't give me the airways.
Louis350's user avatar
1 vote
1 answer
2k views

What is required to 'upgrade' software from DAL C to DAL A?

What are the things to be noted or considered if a software which was initially treated as DAL C and later wanted to be considered as DAL A?
Sridhar Masilamani's user avatar
85 votes
5 answers
46k views

If a pilot ejects, what is the autopilot programmed to do?

If a pilot uses their ejector seat during flight, what is the autopilot programmed to do? As a developer myself, I'd want to build in a way for the plane to try and save itself if possible (to save ...
Cloud's user avatar
  • 13.3k
2 votes
1 answer
4k views

What API can I use to get FAA NOTAMS or will this one I found work?

I am not sure if this is the correct place to ask this because it has to do with APIs with XML/JSON/SOAP, but it also has to do with aviation. I am in dire need to find an API associated with the FAA ...
Forseth11's user avatar
  • 213
3 votes
1 answer
255 views

How frequently are avionics on large commercial aircraft updated?

How frequently are avionics on large commercial aircraft updated? And how are the systems updated?
TayE's user avatar
  • 6,595
9 votes
1 answer
338 views

How does a PFD handle unphysically abrupt changes in the parameters it's displaying?

This question is about human factors requirements in the design of software components displaying instruments in a primary flight display. (It's not about how to implement the software.) Let's take ...
Dan Hulme's user avatar
  • 12.7k
10 votes
3 answers
4k views

How much computing power is needed to keep commercial and military planes flying?

I've always wondered, what sort of computing power is needed to keep modern commercial and military planes in the air? There are many systems of a modern commercial plane (e.g an Airbus A350), that ...
Perturbative's user avatar
49 votes
3 answers
24k views

Why is Python used on aircraft although it may not be certifiable?

I recently had a discussion with people who were active in the aviation industry and told me that one of the main languages/tools they use is Python. On the other hand I have always known that people ...
LandonZeKepitelOfGreytBritn's user avatar
54 votes
4 answers
13k views

How dissimilar are redundant flight control computers?

Facts On Airbus aircraft there are computers to secure the flight envelope, or to move the control surfaces. FADECs totally control the engines. Computers take decisions in place of the pilots, or ...
mins's user avatar
  • 73.1k
6 votes
1 answer
237 views

What is the procedure to contact EASA to evaluate the certifiability of a system?

I work in academia, and often we are "accused" of living in an ivory tower with no connections to the real world. To reduce the gap between academia and this "real world" I've heard about, I would ...
Federico's user avatar
  • 32.6k
0 votes
0 answers
60 views

Where can I find a conceptual UML model of airline crewing activities?

I would like to know if anyone has created a UML model of the various elements of a typical crewing system. I have found online UML models for ticketing and reservation systems. However I would rather ...
BigONotation's user avatar
9 votes
2 answers
497 views

Does every device/software, developed for use in the cockpit, need to be certified?

Every avionic, developed for use in the cockpit has to complete a long and expensive certification process. Is this only applying for avionics, installed fixed into the aircraft or also for apps like ...
Noah Krasser's user avatar
  • 8,992
6 votes
2 answers
17k views

How to decode ARINC 429 data?

I am looking for some help regarding decoding ARINC 429 data. I have a CSV document that contains sequentially stored ARINC 429 labels. My overall goal is to be able to scan for 4 specific labels and ...
woudie's user avatar
  • 77
5 votes
0 answers
481 views

What are the popular algorithms or softwares used in identifying or track flights by ATC? [closed]

Just curious to know about the algorithms /software used by ATC for tracking flights in real time.Can it be classified under ERP ?If no under which category does that fall ?
forgottofly's user avatar
6 votes
1 answer
421 views

Why does my flightplan generator come up with a very non-direct route between these two airports?

I'm currently obtaining my private pilot license and I had a random thought pass through my head so I wanted to see how long it would take to get from my airport (KGBR) to an airport in VA (KCHO). The ...
user avatar
8 votes
1 answer
6k views

How did the Thrust Reverser Deploy in Lauda Air Flight 004 crash?

How did the electronically controlled thrust reverser in Lauda Air Flight 004 (which crashed) get deployed in mid air without the pilot command. Was there a fault in the electronic controller, a ...
boon's user avatar
  • 181
17 votes
2 answers
2k views

How does Jeppesen create its US charts?

The Jeppesen and FAA IFR plates represent the same information in different ways. The FAA publishes its charts for free, but the underlying data that goes into the charts (e.g., exact coordinates of ...
marcprux's user avatar
  • 271
3 votes
1 answer
2k views

Where do websites like expertflyer.com get their information? [closed]

I've been looking at internet resources like expertflyer.com and KVSTool which query information like live seat maps, upgrade availability and fare bucket information. To my knowledge, this seemed ...
woakley5's user avatar
  • 711
5 votes
1 answer
1k views

How can I use XFLR5 on a shape with no maximum thickness at one point?

I want to run an analysis with XFLR5 on a shape that is not really airfoil shape since it has no maximum thickness at one point only, it is basically like the shape below: But when I run an analysis,...
Ghadeer Aiydhah's user avatar
17 votes
2 answers
6k views

Which CPUs and programming languages are used in new airliner flight control systems?

Are the new systems of today built with the same CPUs and programming languages and development software as those of 20 or more years ago? By new I mean that these systems are currently being ...
Daniele Procida's user avatar
1 vote
1 answer
2k views

What do FAA DERs require regarding low-level requirements in DO-178C?

Software developed for aircraft needing TA certification pretty much has to be done using a process following RTCA/DO-178C. My question regards low-level (sometimes called "derived") requirements: ...
Mark Fischler's user avatar