Comment Re:Let us keep our thoughts with our Kremlin frien (Score 1) 667
there are two flight recorders
There are two data recorders on civilian airliners, which record different things : a flight DATA recorder (FDR) and a separate cockpit VOICE recorder (CVR). Though quite what new data these would provide is not at all clear to me. Do you think that the alleged Ukrainian fighter plane would have been in conversation with the plane or something? Why would they do that? What's the FDR going to contain? [Flying][More Flying][More Flying]All hell breaks loose, with many sensors and/or power and/or hydraulic buses going down. That's going to tell us that the plane wasn't CFIT by a mad pilot (which is an allegation I've not heard from anyone), and that there wasn't piecemeal falling apart of the plane because the welders were pissed the day they built that airframe (another allegation I've not heard). So what new information are they going to add?
I've never heard of any aircraft carrying two FDR and/or two CVR. Unless you know differently (citation, please). They're expensive bits of kit and take non-trivial maintenance, so only the minimum required is fitted.
What data did the FDR record? That's up to the operator - after the 88 parameters required by FAA specifications. (I assume the FAA requirements will be a minimum, as the airframe was by Boeing, so has made at least one flight originating in the US, and therefore subject to FAA regulations ; it may never have been subject to FAA regulations since, but re-programming and/ or re-wiring the FDR to comply with some other relevant standard would be a significant maintenance task, and why spend the money. I checked the FAA's standard here, and to my surprise they refer back to a European standard "European Organization for Civil Aviation Electronicsâ(TM) (EUROCAE) publication ED-112, Minimum Operational Performance Specification for Crash Protected Airborne Recorder Systems" ; if you want to follow the paper trail, feel free.)
CFIT - one of the most terrifying of aviation acronyms : Controlled Flight Into Terrain.