It wasn't just a group of airmen desperately learning and training; in fact, in a secluded part of the sea, unknown to the public, another group of people was also desperately studying and training.
They had practically become non-existent, simultaneously piloting and controlling a ship that did not exist! This ship had not returned to port for a long time, continuously traveling on the ocean, relying on a supply ship to replenish its fuel and food at sea.
On deck, all the men had beards on their faces, looking like Viking pirates, smelly and with their fronts stained with oil.
These sailors had been living at sea for more than a month, exhausting their fuel and almost using up all essential living supplies.
The transport ship that arrived was a supply ship specially modified for submarine crews, replenishing diesel and various food for this submarine as part of this training and experimentation.