Generally speaking, What programming language is used in aviation for (ATC Radio, Radar, ILS, Auto-pilot and on-board avionics)?
I remember watching a documentary on YouTube last year about aviation and it said something about the EU, after WWII, started making standards for aviation systems inside Europe. I will link the video if I can find it
As far as I know, there is no directive on which language to use. You have guidelines on how to test and certify software, but as far as these guidelines are concerned, no language is preferred, it is a design choice.
As of today, in my (limited) experience as an engineer/programmer, I have mostly seen that non object oriented languages are preferred, since they reduce the amount of testing required. Usual arguments I have encountered primarily concern explicit memory management in often resource-limited environments.
Generally speaking, What programming language is used in aviation for (ATC Radio, Radar, ILS, Auto-pilot and on-board avionics)? Is there a standard enforced by ICAO? Does every plane manufacturer use the programming language they like as long as it's reliable and it goes through testing? I remember watching a documentary on YouTube last year about aviation and it said something about the EU, after WWII, started making standards for aviation systems inside Europe. I will link the video if I can find it
In a full motion Level C or D simulator like those used by the airlines and for jet type ratings: How should a pilot log the simulator time in their logbook? I.e. Can you log: Total Time Instrument Time Time in Type Cross Country Time Night Time Landings (including night landings) Dual given/received Anything else?
Airplanes with propellers were invented a long time ago. After that, jet engines came into existence. My question is: why do we still have propeller engines? The reasons I can think of are: They are cheaper; They cannot achieve very high speed; They are not very noisy (though not always). Besides these, are there any other reasons general aviation airplanes built nowadays don't have jet engines?
Inspired by this question. My knowledge concerning helicopters is quite limited: what is auto-rotation? are there other "rotations" possible? in what do they differ?
When I took delivery of a new Cessna 182T last year, I did a test flight for certification purposes. During the test flight we had to perform a power off stall but that didn't go as planned as it was simply impossible to stall. What happened is this: when the airspeed dropped well below the power off stall speed we simply started to sink slowly with a nose-high attitude at about 35 KIAS. This "mushing" went on for what seemed ages before I eventually applied power and pushed the nose down to gain airspeed again. We tried it again after that and the same thing happened. I had an instructor
Chemtrail conspiracy theorists believe that there are certain additives being put into jet fuel to spew out [nano-]particles that rain down on us, for means that are being kept secret. The hypothesiz...
What does ATC do when there is an emergency? This could be a tower or an ARTCC being evacuated or otherwise unusable. How do they decide whether to close the airport/airspace? What do they do with the traffic, whether they do or don't close? On this related question, it turned out that Newark closed because of smoke in the tower. Another user posted an interesting anecdote about another tower being evacuated, so I thought it warranted a question.
This is what I know: $V_1$ is the takeoff airspeed after which the aircraft must take off, no matter what happens after $V_1$ has been reached. That's the easy part (I think). $V_R$ is the rotation airspeed Are there any other $V$-speeds? What I'm specifically curious about: Is $V_1$ related to runway length? Is there an absolute maximum $V_1$ for each aircraft type? If so, can it vary...? (this is the case for most light aircraft, but I guess the whole concept is not applicable in that case) What exactly is $V_2$? Is there a $V_3$? (and so on) Anything else worth knowing about $V$-speeds?
I realise that this question is very broad, but I intend it as an example to illustrate the actual costs incurred by a typical long-haul commercial flight. For this purpose of this question, I would assume the following: A380 or (modern) B747 in typical 3-class configuration Full occupancy 12 hours flight time (or more) Here are the cost position I can think of right now: Fuel Aircraft... fees Administrative cost (managing/issuing tickets, etc.) What am I missing? What would be the absolute (and relative) cost budget for each of these? Bonus question: in airline operations
Is there a legal definition of a "cycle" on a jet engine? We must log the cycles, and some maintenance is determined by cycles. From my understanding, this is partially because of the thermal dynamics of an engine cooling and then reheating, and partially because full takeoff power is used. The "usual" time that you log a cycle is when an engine is started and the aircraft then takes off (using full rated takeoff power), but what about unusual situations like: Engine shutdown and restarted in flight Engine started, aircraft takes off, and then returns for a low pass or a touch and go