First sea-trials with the above USV have now successfully been done, just south of Fulhadhoo island in the Maldives. The weather was rather rough at location, but the gimbal had no problems keeping the cameras stable. I uploaded some of the shot videos, as well stereoscopic ones, to Youtube (Cas Theeuwes). Some in less than 80cm deep water. Here timing of working over rocky shallow reefs is important, as tide can drop very fast. The automatic white balancing of the Raspberry Pi camera will need to be deleted for next trials.
I’m currently looking for cooperation to get to a production startup; email me at aoc@viewco.net