"I have read the reports you submitted. It seems that all aircraft are using liquid-cooled engines. I want to know why we cannot use air-cooled engines? The cylinders are distributed around a central axis and then dissipate heat through the oncoming cold air flow. Moreover, the air-cooled engine is better resistant to damage." The prince was very satisfied with Daimler's performance, so he decided to take the opportunity to show off his aviation knowledge.

"We have thought about this question. First of all, air-cooled heat dissipation is proven to be insufficient. The flight speed is still relatively slow, so the air volume on the windward surface is limited and the heat dissipation effect is limited. Moreover, if an 8-cylinder air-cooled engine is also used, the front area will increase a lot and the flight resistance will be greater. So we still tend to use liquid-cooled engines." Daimler's moral integrity is still guaranteed. If it is to be tolerated to fake it in order to attract attention and gain more support, but technically, this master will not give in!

Liquid-cooled engines have high heat dissipation efficiency and are very small in windward, so low power can have higher performance. Historically, European aviation industry generally tends to be liquid-cooled, especially as fighter jets that require higher agility, they are powered by liquid-cooled engines. This situation continued until the second battle, such as the British Spitfire, the German BF109, and the FW190, which was forced to turn back to liquid-cooled.

As for why Americans and Japanese use air-cooling, Japan won’t talk about it. Even if you don’t even get a db601, many automatic control components are finally made into manual... The American mass-produced liquid-cooled engine is not as good as Europe. Not to mention the UK, the mass-produced v1710 is not as good as the German late db603 and jumo213. (Of course, after the war, some last-generation models still surpass Germany.)

"It seems that if you want to get an air-cooled engine, you still have to go a long way." The prince sighed in his heart.

In any case, the prince was still very satisfied with Pilot One this time. The aircraft has a certain practicality. The next step is to let people see the huge role of the aircraft, so that the German government can promote the development of the aircraft industry from top to bottom, rather than throwing all its energy on the airship. The airship is now easy to use. It has overwhelming advantages in terms of air stagnation time, range, cargo capacity and flight altitude, but its potential is limited!

The conversation was divided into two sides. The tasks assigned by the prince must be completed. Major General Schmidt quickly brought a technical team and made improvements according to the requirements of Daimler and others. At the beginning, the technicians brought a brand new mg1900 machine gun. The machine gun was fixed next to the left wing and a circular gun frame was installed. The machine gun could slide on the gun frame and use a saddle drum to supply the bullet.

To be honest, under the current circumstances, it is not easy for pilots to control aircraft, and it is even more difficult to control machine gun strafing on swaying aircraft. It is almost impossible to shoot ground targets on unstable aircraft. Then technicians made improvements and integrated the firing switch on the operating handle. The machine gun was fixed to one side of the wing and installed a simple scope. Although it still doesn't work much, at least it looks like that, giving people a sense of high spirits...

Moreover, this time the shooting used dynamic shooting method. Voyager One flew over from a height of 100 meters, while another car equipped with a camera advanced parallel from the side. When the plane flew over 200 meters away from the target, the pilot pulled the trigger and wiped out all 200 incendiary bombs in more than ten seconds! The target's cabin turned into a sea of ​​fire in the dense rain of bullets!

"Great, very good." The prince was very satisfied with the photo on the table. In the air, a huge figure passed by and sprayed a deadly tongue of flames at a room next to him. In just a few seconds, the room turned into a torch. Of course, the help of flammable and explosive products in the room must be indispensable...

"In fact, even if there is no bullet hit, the house will still burn." Baron Daimler wrote in his diary afterwards...

As for the subsequent ground bombing, there were also many problems. "On the swinging plane, unless I was as agile as a monkey, I could only use my mouth to pull the grenade pull ring and throw it down. The technical team also tried to install a bomb hanger to solve the problem, which did liberate my hands, but unfortunately, the bomb with too much power was a problem for the plane itself. I once dropped a 50kg bomb at an altitude of 150 meters. The violent impact after the explosion almost made the plane lose control!" Afterwards, the first test pilot in Bavaria, General Ryan, who was later known as the air lion, recalled his bombing experience in this way.

This is definitely not a wonderful experience. The fragility of the first generation of aircraft was fully demonstrated in the test! The aircraft's wings were too large, which directly reduced the structural strength. At the same time, there was no complete enclosed body, and there was no support with sufficient strength inside. It was okay to throw a grenade or a mortar shell. If it was more powerful, there would be a problem. After all, the violent explosion and flying shrapnel could completely break the slowly flying "bookshelf" in the air into pieces.

However, after the stunt photographer joined, everything changed differently in the camera. In the camera, the plane flew through a field of water in a straight line, and black things were thrown down. Then, water columns soared into the sky, which definitely gave people a refreshing feeling. This is a cross-age result.

Even when the ground was static display, someone installed a set of radio communication equipment on the plane. Of course, due to weight and operability issues, this system is almost impossible to use in the air, and at least one person cannot send a report while flying the plane. And there is no two-seater aircraft yet... But some people might as well see the huge role and development potential of the plane!

A large number of photos were collected after screening. The prince also wrote a special letter of recommendation. This letter was not for the German Emperor. After all, the German Emperor did not understand military affairs very much, and was not a front-line service staff. It was a bit troublesome to do it. The prince needed to send these materials to a person who could truly see the future of aviation development and was able to accomplish this! And this person was the famous German chief of staff, Xiao Mokch, now the military chief!
Chapter completed!