"I've read your report, it seems that all planes use liquid-cooled engines, and I wonder why air-cooled engines can't be used. The cylinders are distributed around a central shaft and then dissipated by the oncoming cold air flow. Pen & Fun & Pavilion www.biquge.info and the air-cooled engine is more resistant to damage. The prince was so pleased with Daimler's performance that he decided to take the opportunity to show off his knowledge of aviation once again.

"We have thought about this problem, first of all, air cooling heat dissipation has been proved to be insufficient, the flight speed is still relatively slow, so the air volume on the windward side is limited, and the heat dissipation effect is also limited, and if you also use an 8-cylinder air-cooled engine, the frontal area will increase a lot, and the flight resistance will be greater. That's why we still prefer to use liquid-cooled engines. "Daimler's discipline is still guaranteed, if it is tolerated to fake in order to attract attention and gain more support, but in terms of technology, this master will not give an inch!

Historically, the European aviation industry is generally more inclined to liquid cooling, especially as a fighter that requires higher agility, are powered by liquid-cooled engines, and this situation has continued until World War II, such as the British Spitfire, the German's BF109, and the FW190 that began to use air cooling and was forced to switch back to liquid cooling.

As for why the Americans and the Japanese use air cooling, Japan will not say anything, and it is not easy to get a DB601, and many automatic control components are finally made into manual ....... The liquid-cooled engine of the American production version is also inferior to Europe, not to mention the United Kingdom, and the production version of the V1710 is also inferior to the German DB603 and JUMO213 in the later period. (Of course, after the war, some of the last models surpassed the Germans.) ）

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

In any case, this time the prince is still very satisfied with the Flyer 1, the aircraft already has a certain practicality, and 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, instead of throwing energy on the airship, the airship is now easy to use, whether in terms of airtime, range, cargo capacity or flight altitude has an overwhelming advantage, but the potential is limited!

Major-General Schmidt soon brought in a technical team, which was refined according to the requirements of Daimler and others, and at first the technicians brought a new MG1900 machine gun, which was fixed next to the left wing, and installed a ring gun mount, on which the machine gun could slide, and was fed with a saddle-shaped drum.

To tell the truth, it was already difficult for the pilot to control the aircraft in the current situation, it was even more difficult to control the machine gun strafing on a rocking aircraft, and it was almost impossible to shoot at ground targets on an unstable aircraft, and then the technicians made improvements, integrating the firing switch on the operating handle, the machine gun was fixed to the side of the wing, and a simple sight was installed. It's still not very useful, but at least it's like that, and it feels like ...... high.

And this shoot used a dynamic shooting method. Voyager 1 flew from an altitude of 100 meters, and another car equipped with a camera went parallel to it, and when the plane flew 200 meters from the target, the pilot pulled the trigger and fired all 200 incendiary bombs in a dozen seconds! And the target cabin was reduced to a sea of fire in a dense rain of bullets!

"It's amazing, it's very good." The prince was very pleased with the picture on the table, and in the air, a huge figure streaked by, spewing a deadly tongue of fire into a nearby room, and in a matter of seconds, the room turned into a torch. Of course, this must be indispensable for the help of flammable and explosive materials in the house.......

"In fact, even if not a single bullet hits, the house will still burn." Afterwards, Baron Daimler wrote in his diary.......

As for the subsequent ground bombing, there are also a lot of problems. "On a rocking plane, unless I'm as agile as a monkey, I can only pull the grenade with my mouth and throw it down. The technical team also tried to install a kind of bomb pylons to solve the problem, which really freed my hands, but alas, the bomb that was too powerful was a problem for the plane itself, I once dropped a 50KG bomb at a height of 150 meters, and the violent impact after the explosion almost made the plane lose control! In the aftermath, Bavaria's first test pilot, Admiral Lane, who later became known as the lion of the sky, recalled his bombing experience.

It was definitely not a good experience, and the fragility of the first generation aircraft was vividly demonstrated on the front line in the tests! The wing of the aircraft is too large, which directly reduces the structural strength, and at the same time there is no complete enclosed airframe, and there is no strong support inside. It's okay to throw a grenade, it's okay to throw a mortar shell, if it's more powerful, it's a problem. After all, the violent explosion and the flying shrapnel could completely shatter the slow and leisurely "bookcase" in the air.

However, after the stuntman joined, everything changed in the lens, in the shot, the plane flew in a straight line from a body of water, one by one black things were thrown down, and then, the water column rose into the sky, which can definitely give people a refreshing feeling, which is a cross-era achievement.

Even when it was displayed on the ground, someone installed a set of radio communication equipment on the plane, of course, because of the weight and operability of the system, this system was almost impossible to use in the air, at least one person could not send a message while flying the plane. And now there is no ...... of two-seater aircraft. However, it is advisable to see the huge role and development potential of the aircraft from it!

A large number of photographs were screened and collected. The prince also wrote a letter of recommendation, which was not addressed to the Kaiser, after all, the Kaiser did not know much about military affairs and was not a front-line clerk. It's a bit of a hassle to do. The prince needs to give these materials to someone who can really see the future of aviation and is capable of doing it! And this person is the famous German chief of staff from Moltke Jr., now the quartermaster!

The prince gave this information to Moltke for a reason, not only because the two had a similar attitude towards the Schlieffen plan and won each other's affection, not because the dude was the future chief of the General Staff, but because he was one of the few people in the German Army who really saw the role of the aircraft! (To be continued.) )