I thought we would use it for inspecting moorings and boat hulls during the sailing season, to make a bit of income for the hobby. Before I built it, I imagined, in my mind, being able to fly with a reasonable degree of accuracy, forwards a bit, back a bit, up, down, etc.
We’ve done about 4 dives so far and I’m afraid to say it has been much less predictable. Maybe we haven’t got the buoyancy right or maybe there’s been too much current, but I think we’d be lucky to position within a couple of metres. No way of going up close to something without hitting it.
I imagined it would be like flying a quadcopter but it’s completely different. As I say, maybe we need to spend much more time setting it up.
In a swimming pool, with no current, where you can see it, fair enough, but in the sea, 10 metres down, when all you can see is ahead, a different story.
Good luck with the build. It’s a really exciting thing, whatever the trials.