Originally Posted by
forgot to bid
Alright, I have to ask this again about the ELT. Wouldn't a B777 in 2014 have a 406mhz ELT on it?
If it crashed then the ELT would have been activated by impact and within a minute an encoded digital message to a satelite saying the ELT's ID/aircraft ID, country code and coordinates. I've seen it work.
They are not hardened like the CVR/FDR. They are designed to locate survivors, thus there is no need for them to survive a 500Kt impact and still function. Even if it did survive, UHF doesn't work underwater.