Tritonia modelled four rock anchors which were used to secure a renewable energy device prototype in the vicinity of the Falls of Lora, at the mouth of Loch Etive.
Measurements such as angle of penetration and aspect were extracted from this model, as well as an analysis of the degree of anode sacrifice and pitting corrosion and the general state of the rock anchor.
The anchor lies at approximately 30m depth, in a highly tidal region. The diver was required to locate the anchor and capture the photographs within approximately 10 minutes, because of the depth and the limited duration of the slack tide. To ensure this was achievable the GPS location of each of the anchors was verified using sidescan sonar prior to undertaking the dives.
