Is that 95% all accidents,
Andrewr,
That is
95%+ of all accidents where the aircraft was fitted with a fixed ELT, and includes not just GA, but some airline accidents as well.
In three cases of Airbus aircraft, where the rear fuselage was substantially intact, the factory fitted ELT still didn't work/
It is actually quite hard to find examples of where a fixed ELT did work, and broadcast useable signals.
In contrast, in an accident where one or more has survived, the failure rate of portable ELT was nil.
Remember, if there are no survivors, all an ELT does is maybe save on some search costs
The CASA post implementation review, about seven years after the current rules came in, confirmed the original research, that overturned the (then) CAA proposal to mandate fixed ELT in all aircraft, with an exemption for airlines.
Remember, it is a 100% failure rate in water, on land either or both the aerial or aerial cable are disrupted or otherwise rendered useless in real world crash sequences.
If somebody wants to carry both, fine, it's your money, but the facts say you are deluding yourself. I can think of much better things to do with that amount of money that would be a better contribution to aviation safety outcomes.
Remember, the whole "mandate" came from the US (but not the FAA) when a well known politician was lost in Alaska, the mandate was a knee jerk political reaction with no technical merit, no research and certainly no cost/benefit justification.
As I said in a previous post, fixed ELT are a total waste of money, time and effort.
Tootle pip!!