Originally Posted By: Astro14
Originally Posted By: Trajan
Originally Posted By: Blaze
When it comes down to it this plane most likely would have never been found if those Rolls Royce engine didn't produce that ping.
The ping is from the flight recorder aka black box.
The word "ping" has been over-used by the media....causing quite a bit of ambiguity when the word is used.
What Blaze was referring to was the satellite data reporting from the RR engines that continued for 5 hours after the airplane turned off course. Data wasn't uploaded (turns out that Malaysian Air didn't pay for that feature like other airlines have) but the Boeing and RR systems were still on the plane and still connected to satellites in a "ping" - much like your cellphone "pings" each new tower it sees to initiate a connection.
That attempted connection (and the analysis of Doppler shift and time) enabled the new search area.
Now, in that new search area, they're listening for a 37.5 KHz acoustic "ping" to locate the CVR and FDR...
Ahh. Sometimes I get into a very literal mode. I knew from previous posts that the engines transmit, but though that as the plane is on the ocean floor...
Hey, I learned something