NORBIT Partner Training Program
The survey described in this case study was made in connection with a NORBIT Partner training program, conducted by NORBIT engineers from Singapore and Norway.
This training aimed to equip NORBIT’s Partner PT Hidronav Tehnikatama to serve as NORBIT’s exclusive partner in Indonesia, handling sales, technical services, and warranty support.
Certified participants were those who completed the course and demonstrated proficiency, ensuring that NORBIT customers receive appropriate sales support from qualified personnel.
Introduction
As part of the course syllabus, a field survey was conducted in Tanjung Priok, Jakarta Bay, on 29th August 2024, using the NORBIT WINGHEAD i79h multibeam sonar.
The survey covered a submerged wreck and a heavily sedimented quay wall section. Utilising the portable NORBIT PORTUS Pole, the installation and system configuration took just over an hour.
The shipwreck was located approximately two nautical miles northeast of the port, at a depth of less than 10m. The quay wall, constructed on the eastern side of the port in 2014, showed significant sediment build up at its base, as captured by the high-resolution WINGHEAD i79h dataset.
WINGHEAD i79h Multibeam Sonar System
The NORBIT WINGHEAD i79h sonar is the first cylindrical ultra-high resolution curved array bathymetric system, designed for rapid anywhere, anytime mobilisation featuring the highest standard industry-leading integrated GNSS/INS positioning. With a compact ultra-high resolution curved array broadband multibeam sonar offering tight integration with GNSS/INS (Applanix Oceanmaster) that is designed for use in the most demanding operational environments such as under bridges or in rough sea conditions.
Main Features
- Multibeam Sonar with Integrated Inertial Navigation System & Integrated NTRIP Client
- Backscatter Outputs
- Roll Stabilisation
- Multidetect
- Integrated Sound Velocity Probe
- 1024 Dynamically Focused Beams
Installation
Installation at PT.JPPI Shipyard, Indonesia. The sonar was mounted at the port side of the vessel with both Antenna 1 & Antenna 2. Installation and configuration took just over an hour using the NORBIT PORTUS Pole. Fugro Marinestar corrections were interfaced with the system in real time.
Vessel Spec
- Length Overall (LOA): 16m
- Breadth Overall (BOA): 3.2m
- Gross Tonnage: 110 tons
- Net Tonnage: 80 tons
- Height: 5.6m
- Draft: 1.5m
Results
The WINGHEAD i79h multibeam sonar was able to detect the partly disintegrated half buried wreck in high resolution to generate an overall point cloud for visualisation.
With the WINGHEAD i79h swath angle of 210°, it was possible to electronically beam steer the swath angle towards sea level above the WINGHEAD i79h draft to scan the whole quay wall from sea level to seabed, without any mechanical tilting of the MBES head.
