– How could a Canadian P3 aircraft, while flying over the Atlantic Ocean, possibly detect ‘banging noise’ attributed to a small submersible vessel potentially thousands of feet below the surface?

Question

– How could a Canadian P3 aircraft, while flying over the Atlantic Ocean, possibly detect ‘banging noise’ attributed to a small submersible vessel potentially thousands of feet below the surface?

In: 3042

Answer 1

The P3 drops sonar buoy that have two modes. Active is like the movie where you send pings and then listen for the returns. The other is passive where you’re just listening for sounds in the ocean. It’s this passive mode where the hammering was recorded. These recordings are transmitted by radio back to the plane where a computer use these data to triangulate position of a submarine and display it on a screen.