Questions for Derryn Hunch or , or anyone who may know.
I have been reading about the ACARS system, and the upgrades to the technology in recent years. Here is a quick overview.
Aircraft Communications Addressing and Reporting System - Wikipedia, the free encyclopedia
From what I understand, the Air France Flight 447 sent loads of ACARS data before it crashed into the ocean, which helped in the investigation to find out what happened. Some of this data indicated the autopilot switched off automatically (due to iced up pitot tubes), and the aircrew was apparently confused or something, and tried to climb to correct a stall, instead of descending.
My first question is, how many other modern air crashes (say, in the past 15 years) have there been NO ACARS data submitted? The ACARS system seems to use more than one portal to transmit data, so a complete lack of ACARS data seems very, very weird. Is the ACARS data pretty much sent instantaneously?
What kinds of scenarios would produce a complete lack of ACARS data? To my admittedly very amateur thoughts, it seems that even an explosion should generate some kind of pings, since it seems like it would take a "science fiction alien ray gun" to "vaporize" an entire plane instantaneously. Even explosive decompression and disintegration takes a
bit of time, right? How could there be no data at all?
Is there some scenario where a complete loss of electrical power to the whole plane instantaneously would result in no ACARS data? The electrical systems are so complex, I can't imagine ALL of the redundancies being overcome at once?
Do you think it's likely that they actually have ACARS and other automatic data, but aren't releasing this information to the media and public?
I just have a hard time wrapping my head around a huge airliner just vanishing so suddenly, with no data, and no signs of a crash on land or in relatively shallow seas.
I agree with Derryn Hunch's comments that the geographic area is heavily monitored. If the Red October was passing by and the crew burst into song, four or five nations would sing along, lol! Cobra Gold has long been a multinational military "kumbaya".
Cobra Gold - Wikipedia, the free encyclopedia