The Trident Offshore navigation department utilises the following units for heading control in all our rigmove and positioning contracts:
Our Heading units are fully integrated into the rig navigation system package as standard, and are available as an add-on option to our Anchor Handling Vessel (AHV) navigation packages.
Meridian Surveyor
The new Meridian Surveyor boasts a wide range of interfaces to enable use on any marine vessel. The unit utilises a DTG gyro element which provides exceptional performance with an accuracy unmatched by even the latest fibre optic designs. Unlike conventional spinning mass gyrocompasses, the Meridian Surveyor uses a dry tuned element (DTG) that removes the need for routine maintenance. Hence the Meridian Surveyor provides reliable, maintenance free operation with a MTBF in excess of 30,000 hrs.
The remarkably stable heading can be maintained for turn rates in excess of 200° per second making the system ideal for use on fast survey craft and in river/harbour environments.
The Meridian Surveyor gyrocompass is backed by the largest global support network of any manufacturer, TSS has complete repair, test and calibration facilities in the UK and USA aided by factory trained service engineers on every continent.
Gyrocompass Meridian Surveyor complies with the requirements of IMO A 424(XI), IMO A 821 (1bv9), BS EN 60945, BS EN ISO 8728.1994, BS 6217. 1981 CE Marking, Electromagnetic Compatibility (EMC) Directive and the Marine Equipment Directive 96/98/EC.
TopRobertson Gyrocompass SKR82
The SKR82 is based on Roberston's SKR, the world's first electronic gyrocompass for marine use and still a leader in its field. The new model is a result of a series of product improvements which have enhanced its performance.
The variety of applications for the SKR82 continues to grow, from fast ferries and offshore subsea construction, to survey and research vessels. These applications require the technical characteristics that this gyrocompass offers.
Until the introduction of SKR82 the marine application of some gyro techniques was considered unachievable using conventional technology. The SKR82 is testimony to Robertson's success in overcoming these problems and is the result of close co-operation between Robertson with Singer Aerospace & Marine Systems Group and NFT.
The gyrocompass has been approved by Det Norske Veritas, D.O.T. (Department of Trade UK.) B.S.H. (Bundesamt fur Seeschiffart und Hydrographic, Germany, formerly D.H.I.), the Norwegian Maritime Directorate and conforms with the l.M.O. resolution A.424 (XI).
Advantages
- Simple operation
- No regular maintenance
- Short alignment time
- Superior dynamic performance
- No discernible follow-up errors
- Light-weight construction.
3011 GPS Compass
GYROSKY ® - A unique technology for safe navigation.
The Ashtech 3011 GPS Compass from Thales Navigation.
This is the ideal heading measurement instrument for meeting the requirements of modern navigation systems such as; OVERLAY radar, ARPA radar, automatic pilot and data acquisition for bathymetry, which are increasingly being used by fishermen, navigation professionals and hydrographers.
Advantages
- Precise: The 3011 GPS Compass measures the vessel's heading with a precision of 0.5°.
- Fast: The 3011 can be operational in less than 80 seconds after power is supplied, and less than 15 seconds in signal re-acquisition.
- Easy to install: A single cable is used to connect the dual antenna; this feature, associated with the auto-calibration function, enables easy start up.
