The final SubCTestDEMO trials envisage demonstrating the operational system in real environmental and operation conditions. For this propose the consortium has decided to perform their future tests on the shores of Loch Linnhe, a sheltered sea loch in the west highlands of Scotland. The loch has many features which mean that the testing environment is close to what can be found offshore, additionally, its sheltered location allows subsea trials and testing to take place almost all year round.
The sea loch bed hosts numerous wrecks and structures – several sunken army vehicles, a concrete inspection block and an oil platform frame replicate. These features are at depths of around 20m just off the pier. The loch drops to depths of 100m and 150m within around a mile.
| Maximum depth || 150 m |
| Temperature || 6-11 °C |
| Flow rate || 0-2 knot (0.5-1 m/s) |
The final trials were performed with The Underwater Centre Company, which provides world-class facilities for subsea testing of new subsea equipment and techniques.
The work class ROV was a Technip Triton XL32 operated from a boat permanently anchored near to the pier.