New Zealand: WASSP Multibeam Sonar Helps in Rena Salvage

WASSP Multibeam Sonar Helps in Rena Salvage

A WASSP Multibeam Sonar is being used by hydrographic surveyors at the grounding of the 236m-cargo vessel MV Rena on the Astrolabe Reef off the coast of New Zealand, to locate lost containers.

Marine electronics manufacturer WASSP Ltd, a world leader in multibeam sonar technology has provided one of their WASSP sonar systems for the salvage effort. Within 48 hours of the WASSP arriving in Tauranga, it had been used to identify 12 targets, 7 of which were submerged containers – some at depths of up to 80m.

Single beam echo sounders and side scan sonar had been used to support the salvage operation; however MBES systems provide a more economic means of gathering seabed information, particularly in deeper waters.

With a WASSP 160kHz multibeam sonar, Hydrographic Surveyors are able to generate detailed seafloor profiles from 2-200m in depth and can accurately locate seafloor structure, shipwrecks and foreign objects in the water column.

The surveyors involved in the salvage effort have been surprised as to how quickly they were able to get the equipment fitted and the system up and running. The Navigator and WASSP Sonar acquisition software was also easy to set up and operate. Most other multibeam systems require significantly longer mobilisation timeframes.

WASSP Multibeam Sonar Helps in Rena Salvage.

WASSP Ltd General Manager Ian McDonald says WASSP Multibeam Sonars are designed and manufactured at their headquarters in Auckland, New Zealand and have been exported globally since 2006 and have sold more than 450 units.

The WASSP Multibeam technology offers many advantages, mapping the seafloor with greater accuracy. For example, in 100 metres of water, the swath will cover a strip of sea floor 346 metres wide from port to starboard – 173 metres either side of the vessel,” said McDonald.

“In relation to the Rena salvage, WASSP provides a means of covering a lot of seabed very quickly, which is crucial in a salvage operation.”

WASSP’s Windows-based software is easy to use and will run automatically without requiring continuous operator input and all the functions are controlled by a computer mouse. WASSP data can be exported to a third-party chart-plotting system and raw multi-beam sonar data can be saved for further analysis.

WASSP is an extremely useful and cost-effective system, which captures critical information about the water column, seafloor and marine environment. It’s the essential Multibeam Sonar for marine professionals.”

About WASSP Ltd

Designed and manufactured at its global headquarters in Auckland, New Zealand, WASSP Ltd is the world leader in multibeam sonar technology.

WASSP multibeam sonar’s allow a wide spectrum of marine users to map the seafloor and see detailed information in the water column using its wide sonar coverage.

The technology accurately profiles the water column and seafloor highlighting reefs, wrecks, fish schools, seafloor hardness changes and foreign objects in the water column or on the seafloor. The information is presented in user-friendly displays, all controlled via a mouse and stored on computer hard drive for future use.

Source: WASSP, November 7, 2011

Share this article

Follow Dredging Today

3 thoughts on “New Zealand: WASSP Multibeam Sonar Helps in Rena Salvage”

Comments are closed.


<< Dec 2019 >>
25 26 27 28 29 30 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31 1 2 3 4 5

3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews ( holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee:

read more >


Looking to fill a job opening?

By advertising your job here, on the homepage of, you'll reach countless professionals in the sector. For more information, click below...


Dredging jobs in Abu Dhabi at NMDC

National Marine Dredging Company “NMDC” aims to be the largest dredging player in the Arab’s Gulf region...


Looking to fill a job opening?

By advertising your job here, on the homepage of, you'll reach countless professionals in the sector. For more information, click below....