Before the invention of the bombing sight, even the early horizontal bombers on the earth wanted to hit the target by luck.

Aerial bomb delivery not only takes into account the influence of wind speed, but also considers the wind direction, altitude, flight speed, and even the fluid shape of the bomb will have a certain impact.

In order to be able to hit the target more accurately, Green thought of a lot of ways.

The first is to add a tail to the tail of the bomb. Bombs without tail fins will not only flip and roll in the sky, but also when landing, it is not guaranteed that the head hits the ground, which is easy to cause ricochet, which will have a great impact on hitting, and after the tail is installed, these problems can be perfectly solved.

The second is the height of the bomb. Since the Chewing Stone Dragon is able to fly stationary in the sky, it is the best choice for horizontal bombing. Considering the threat from the ground, Green conservatively chose 500 meters as the optimal altitude for dropping the bomb, and the fuse time of the bomb was set to 10 seconds.

The altitude should not be too high, as the bomb may explode in the sky before it hits the target. It should not be too low, because the bombardment is stationary and it is easy to be hit by the enemy. So Green felt that he had to provide a tool for the dragon knights to use as a reference - the altimeter.

The pressure of the atmosphere decreases with increasing altitude...... This theory was verified by the famous Torricelli experiment.

After Jean Gig made mercury from cinnabar (mercury sulfide), Green immediately showed the dragoons the experiment. His purpose is actually very simple - to pave the way for the next students to teach the students how to use the altimeter.

Green's altimeter is simple and primitive, making a one-metre-long metal tube, digging holes in the right places, gluing clear glass as an observation hole, and attaching a skin bag filled with mercury to the bottom of the metal tube.

Hang this simple altimeter on the dragon's body, and when the dragon knight flies to 500 meters in the sky, the mercury column will naturally drop to the position of the hole due to the atmospheric pressure, and this height is the height of the dragon knights' bombs.

It's not accurate, but at least it's not too much of a mistake. For the current situation, this altimeter is already ready for use.

The next step is to measure the wind speed. Modern fighter jets use airspeed tubes, and of course it is impossible for Green to make such a high-tech thing, so thinking about it, he didn't think of any good way.

But then the clever dwarf came up with a great idea.

A metal disc with a rope is installed under a wind cup, and when the wind cup rotates with the wind, the rope in the metal disc will also turn shorter and shorter until it finally gets stuck, and then the length of the rope is divided by the length of the time, and the wind speed can be roughly calculated.

Although this method also required computation and a good foundation in mathematics, Green took the gnome's advice.

Recently, he is working on more professional training and team reconfiguration of the dragon knights of the Dragon Training Academy.

A dragon knight brigade has three dragon knight squadrons, each with twelve dragons.

These include eight Stonechewing Dragons for horizontal bombing missions, a Pyromaniac for ground attack and interdiction missions, a deadly Nadron for escort missions, a Broken Tail Dragon for medical rescue missions, and a two-headed dragon for reconnaissance and surveying missions.

Although there is only one squadron currently fully staffed, and it is only temporary (halfling double-headed dragon), Green's vision of the Air Force has finally taken a huge step towards professionalization.

......

"How's the effect of today's training?" asked Green, looking at the dragon knights in the square who were having a lively discussion.

"It's so much better than it used to be!" Sam said with a smile.

Before they had no tools, it was normal for them to drop ten bombs in a row, and all of them missed the target, but now at least three or four of them can be guaranteed to hit the target, and there is also an inertia in the air bombs, when one hits, the next bombs will be more and more accurate.

Loading the training sand bombs into the pylons, Sam instructed the next group of dragon knights to continue practicing.

"Green, I think we should tame more two-headed dragons next year. Douglas walked over with the Lannister.

"Yes, indeed. Green looked at the sky and nodded.

Because of its two heads, the two-headed dragon could do two different things at the same time. Let's say one head is responsible for flying, while the other is responsible for scouting its surroundings.

And because its neck is long and flexible, it can turn around and stretch out on its back when flying, so the instruments that measure wind speed and altitude are mounted on the body of the two-headed dragon.

One dragon rider is responsible for flying, while another is responsible for operating instruments, observing altitude and calculating wind speed.

It is a natural reconnaissance aircraft and AWACS aircraft, and at the same time an excellent choice for training dragon knights to fly - a trainer aircraft.

Flying for the first time will inevitably be exciting, or nervous, so if there is a "veteran driver" on the side to demonstrate and guide you, it will be much easier to "get on the road".

But that won't be until at least the weather warms up next year.

"Are there any other issues you've discovered recently?"

Green watched as the trainees in this group hit their target, and then turned their heads.

"I found that sometimes the wind in the sky was so strong that we couldn't hear it clearly. Lannister said after a moment's thought.

"Eun, there is indeed this problem. Sam and Douglas immediately echoed and nodded.

"This problem is easy to solve, and everyone can use common sign language in the future. ”

"Sign language?" Sam was curious.

"For example, if I give a thumbs up, it's all set. A few fingers stretched out means that we have reached a height of several hundred meters, so that we don't have to shout when we can't hear clearly. ”

The learning of sign language is actually very necessary, not only for the dragon knights, but also for the ground forces that are being formed, after all, it is not convenient to speak on the battlefield many times. And the flag language of the Navy also needs to be learned by the sailors who are recruiting.

Thinking of this, Green touched his chin, and it seemed that he would need to find Neber to write a special book when he returned.

After solving these problems, Green said to the three Sams, who were discussing sign language with great interest, "Since your fixed target has been practiced almost recently, let's start practicing moving target." ”

"Moving target, are we going to pull the Wings of Liberty out and try it?" Sam exclaimed in surprise.

"How is that possible?" said the Lannister, who immediately interjected, "the sea near the island has frozen lately, and we can't even move our fishing boats, let alone sailboats. ”

Khan, even if he can get out, he can't use a galleon as a target!" Green smiled and waved his hand.

"You two don't have to guess! Haven't there been a lot of ice floes floating on the sea recently? You choose a relatively large flag to plant and use this as a target!"

......