Date: 05 Oct 98 00:26:12 From: email@example.com (Stephen H. Westin) Organization: Program of Computer Graphics -- Cornell University References: 1 2
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"S.L." <firstname.lastname@example.org> writes: > David Lesher wrote: > > There are very valid reason for not putting the CVR onto the > > last-chance emergency battery bus, but how about on its own > > deployable ram air turbine? > No, it shouldn't be on a bus at all, nor on a RAT. It *should* have an > internal lithium battery backup so that it will continue operating even > if you rip it out of the aircraft, IMHO :-) So should the DFDR- even if > its inputs lose power and fall off-line, the recorder itself shouldn't > be the weak link. Except, of course that you really *want* the CVR (and FDR) to stop at the right moment. They are loop recorders, after all, and you don't want one to spend a week under water continuously re-erasing information from the crash. So presumably you want it to stop at the point where it's ripped out of the aircraft. -- -Stephen H. Westin Any information or opinions in this message are mine: they do not represent the position of Cornell University or any of its sponsors.