4 ms·
>But they don’t have comparable beacons for crashes on land. Well, they do: https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon https://en
by na85 5y ago
>But they don’t have comparable beacons for crashes on land.
Well, they do: https://en.wikipedia.org/wiki/Emergency_position-indicating_radiobeacon https://en.wikipedia.org/wiki/Emergency_position-indicating_...
But the reason you need underwater beacons in particular is that the water absorbs RF signals, so you'll actually use acoustic beacons underwater. Such a device would be useless above the water since air is so much less dense.
- slipframe 5y agoFrom what I understand in America, small airplanes are required to have ELTs/EPIRBs, but airliners are exempt. I don't know why that would be, maybe lobbying.
- FooHentai 5y agoPossibly their size means they're remote trackable (e.g. radar) already by gov/military when over or near land. This may not be the case with small aircraft. Total guess, of course.