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 ...

The helicopter was on its eighth flight of the day, officials said. As divers continue to use "side-scanning sonar" to search the Hudson River for wreckage from the helicopter crash that killed ...

The helicopter’s main rotor, main gear box, tail rotor and a large portion of the tail boom have not yet been located, NTSB said. Side-scanning sonar is being used to identify potential locations.

NEOSHO COUNTY — The search continues for the body of one of two boys who died after struck by a train on a river bridge ...

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.

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.