ASV Global and TerraSond successfully complete hydrographic survey using unmanned vessel

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ASV Global and TerraSond have successfully completed a hydrographic survey for charting off the coast of Alaska using ASV Global’s C-Worker 5 unmanned vessel alongside the Q105 survey ship acting as the mother vessel.

Fitted with a multibeam echosounder, the C-Worker 5 unmanned vessel conducted 53% of the 10,649-kilometer survey.

This latest operation was ASV Global and TerraSond’s fourth unmanned charting survey for the National Oceanic and Atmospheric Administration (NOAA) in as many years. The total unmanned survey lines completed now stands at almost 15,000 kilometers.

“We’re excited to be supporting TerraSond for the fourth survey season,” says Larry Karl, VP and General Manager of ASV Global. “The C-Worker 5 once again proved itself to be a reliable unmanned vessel for survey with line following precision and excellent sea-keeping ability.”

ASV Global’s ASView control system remotely monitored the C-Worker 5 from a station on TerraSond’s mother ship throughout the operation. Using exported .dxf survey lines from the TerraSond survey planning system, ASView autonomously executed an accurate survey with very little human intervention.

“The ASV C-Worker 5 was once again advantageous to our charting work for NOAA along a remote stretch of Aleutian Islands coastline,” comments Andrew Orthmann, Charting Program Manager, TerraSond.

“It was productive in an offshore capacity, but also effective when working close to rugged, rocky shoreline with an abundance of uncharted navigational hazards. It allowed us to reduce risk to our personnel while still obtaining the seafloor data important to our client.”