Originally Posted by
Ian W
There is no technical reason why CVR and for that matter DFDR data cannot be streamed into remote storage, the communication bandwidths available now are sufficient.
Strongly disagree. Let's put this claim to bed. The only global means for real time data transfer (streaming) is via satellite, and all aircraft satellite antennae are directional (vertically oriented) and placed on a surface that is upward facing during normal flight. An accident aircraft could possibly be gyrating through any axes before impact and thus unable to reliably stream data. The last moments of an accident flight tend to be the most critical to preserve. With current technologies, only a local storage device onboard can reliably store telemetry data when not in stable flight.