3 ms·

I don't know whether it does, but it would be stupid to let it sink and send a signal.

• anamax 17y ago
  Why? Sending a signal makes it easier to find - that's not stupid whether or not it sinks. Sinking means that it doesn't move much. However, since it's attached to the plane, it's likely to go down with the airplane whether or it it would sink on its own, whether or not it sinks on its own is irrelevant.