Stock Photo - 11 March 2020, Hamburg: The first autonomous drone for surveying waters, ""echo.1"", is on its way in front of the Elbphilharmonie (r) in Hafencity after a naming ceremony in Sandtorhafen harbour. The so-called Autonomous Surface Vehicle (ASV) with its electric drive can be on the road for up to six hours to further improve data on water depths in the Port of Hamburg. Photo: Christian Charisius/dpa. - Hamburg/Hamburg/Germany

Stock Photo: 11 March 2020, Hamburg: The first autonomous drone for surveying waters, ""echo.1"", is on its way in front of the Elbphilharmonie (r) in Hafencity after a.

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