Hi. I'm in submerged. 15m. Scapa Flow. And I can't move. Engines don't start. All crew on his places. Try "Z" on/off. Only emergency orders works. When boat surface - engines started. But enemy coming.
Back/forward - don't work.
Somebody known why on gyrocompass on top 180 an 0 on bottom?
Why is the oxygen supply for 4 hours on VII-B?