At the risk of being marked as a duplicate question, i am raising my first ever question in aviation.
I have always wondered how/why of aircrafts positioning, ever since the "lost" plane of Malaysian airline. Here are few things that are still unclear to me -
- We have fairly precise GPS service available to cars/phones etc. why cant the same be availale to planes? And more importantly, why cant the planes reciprocate with their own coordinates ? Better if it can be shared in real time ? What are the challenges?
I have read some about ADS-B a little and understand that it has its limitations. owever, when we have so many human lives at stake, why is a better solution looked into/implemented?
The limitations that have been described for ADS-B systmes is pretty serious, given that many of the aircraft today travel through horizon boundaries.
- How exactly do "people" get to know of a aircraft and/or its position in order to "potentially" strike it using a missile etc? Is any of ADS-B data available publicly allowing a plane to be tracked by "anyone"? if so, why also, isnt that encrypted, and if not, why not?
My thought process is mostly around "how can someone track a plane without being part of the ATS system/network"?
- What are the areas of our planet not covered by navigational satellites ? There are references to lack of navigational satellite coverage in many areas on earth. For that reason, I want to understand more on that topic. For an aeroplane, flying on a given route, transmitting its position to a satellite above, what are the potential challenges?