"What kind of plane is that!"
"What did it drop!"
"We strongly demand to observe them up close!"
The military observers were making a scene outside the runway. They wanted to get closer to the runway to inspect the parked planes.
With their keen senses, they knew these planes would once again push the planes already at the center of attention to even greater heights.
In truth, this world's research into aircraft had not appeared out of nowhere, any more than research into submarines had.
Before submarines could be used in warfare, various countries had already conducted research into them. Some engineering and utility submarine technologies had even become highly mature.
They could carry out all kinds of missions in complex underwater environments. It was just that no one had ever thought of applying them to the military field.
Individual researchers did not have the money to do this. They could not afford to build an entire submarine, let alone several submarines, to complete their research.
The military also saw no strategic or tactical significance in submarines that moved slowly underwater, perhaps only a little faster than a human could swim.
By the time one reached the designated battlefield, the fleets on both sides might already have finished fighting and returned home.
Thus, every country overlooked the immense value of submarines. It was not that they had none, nor that nobody researched them. It was simply that under many complicated circumstances, they were not the choice of the era.
Just like aircraft.
Research into aircraft had been going on for nearly a century. Conquering the skies had always been humanity's dream.
Fortunately, aircraft research was not as expensive as submarine research. Some wood, some sheet iron or aluminum, and a secondhand racing engine were enough to support the development of