The National Transportation Safety Board (NTSB) confirmed the tour helicopter that fatally crashed into the Hudson River on Thursday did not have any flight records.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...

Helicopters and airplanes are often used to detect and sink submarine craft, ... The aircraft utilize both sonar and radar systems to detect these lurking leviathans.

As crews continue to search for key parts of the helicopter that crashed into the Hudson River, ... Side-scanning sonar is being used to identify potential locations of wreckage,” the NTSB’s ...

As divers continue to use "side-scanning sonar" to search the Hudson River for wreckage from the helicopter crash that killed six people, the National Transportation Safety Board said the aircraft was ...

Divers used sonar on Friday to search for key pieces of a sightseeing helicopter which broke apart in mid-air, leading to the deaths of Siemens executive Agustín Escobar, his wife and three ...

Olbia: Helicopters, Sounders and Sonar to Find Giuseppe and Lorenzo Deiana The search continues to track down the brothers missing since Saturday.