On The last steps with work on submarine 212A I did several tests on the desktop. Everything seemed to go well except DLX's absence, that even now after a month has not arrived from Germany !.
After assembly I started testing on water(in tub). Waterline is good without requiring for adjustments.
But obviously there is a BUT: I do not know what happens to the ballast tank, does not went to take the water!. Just go 2sec,and it stops for 1sec and so on,even if I hold still, stick in a position to fill!. It sounds as if someone / something is blocking and let him go as he please. And after 2-3 times moving stand still and do nothing.And do nothing even I tray to withdraw,when I try to empty it.Do not hear NO noise, nothing.I opened hull 2-3 times to see if the engine is block from something but it was not so.I do not know what to do.Out of the water and put on the table works!.
I do not think it's the battery on since the table it goes perfectly, the engine that is powered also from there and is working flawless and regulator also.
What do you think .... WHAT COULD BE?.
PLEASE some advice wheel be more then welcome.