@nonntal ich poste mal den original text... die long storie
:D muauhahaha
Peter Lindberg
Here is the short story about our last expedition:
Bad weather and equipment failure!
Here is the longer story:
We had very bad visibility and quite strong currents down around the circle. The ROV worked for a while but we could not record the ROV camera because of a human error (the remote to the harddisc DVD was forgotten ashore). We had to take photos directly from the screen to be able get something recorded. The BlueView sonar did not work properly but I think we at least have enough snapshots from it to be able to make a sonar mosaic.
The divers have shoot some film when they took new samples but due to the visibility and currents they were not able to take the samples from where we had planed, we'll see what the samples will tell us. Stefan, one of the divers, had mounted 3 GoPro cameras and a Contour camera on a rig with lights. The contour and one of the go Pro's worked, the other two did not record anything. The divers could also tell that where they were they could not notice any magnetism.
We tried to find the hole which we knew must be at 75 meters depth, as you can see on the ROV monitor, but we could not find it. I was my self driving the ROV around and I'm quite confused that it seems like it gone, which its obviously not. So I'm sorry to say that we can't say anything about the hole at this stage. I guess we must try to find it next time, if there will be a next time. We did not find any more holes though.
We decided to go to object no 2 with the ROV but when it was launched four smoke filled bubbles camed up and the ROV was dead in the water. We recovered it and spent many hours trying to locate the fault. We found that the tether (cable) had a short circuit and had burned a hole right through the isolation of the tether, so water camed in. With 600 Volts in the thether things happens when comming in contact with water. We did not have the right materail to fix the cable at site and we do not send the divers down before we have checked with the ROV. So it was only one thing to do, leave for home port.
Well that was preatty much all of it.