Frangible,
Just a minor detail, if I may?
ELTs on the B737-800 aren't
just activated by water. They are also activated by a preset "g" value in case of impact.
Quote:
ARM - (guarded position) ELT transmits automatically when it reaches its preset G-Load limit.
There are occasions where aircraft have crashed in dense forest, jungle, swamps, underbrush, etc., where visibility of a charred wreck is hard to spot over the course of several days, even with slow moving helicopters and eagle-eyed SAR techs with binoculars.
...but I take your point.
Willie
