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Chapter 1829 Engine Improvement

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    In the current era, Britain is still an old-fashioned industrial power.  So when it comes to jet engine technology, except for the famous German me262, which uses a cross-age jet engine, it belongs to the British.  However, the British are very secretive about such projects.  It was not until the end of World War II that their Meteor fighters were put into actual combat.

    But the British are still very conservative.  This kind of fighter jet has always been engaged in homeland air defense in the UK.  Most of the time was spent intercepting the V1 missiles coming from Germany.  This kind of aircraft did not appear on other battlefields, so the limelight was almost replaced by the German me262 fighter.

    As for the United States, although the United States is now an industrial powerhouse.  But it is not an old-fashioned industrial country, and their background is still limited, so now they are not capable of producing jet aircraft. A few years later, the engines used by the F-80 jet fighter produced by the Americans were also imported from the UK.  *Technology and then produced by ourselves, but during World War II, a large number of technicians and a large number of smart minds came to the United States, so the technology of the United States developed rapidly, and after the end of World War II, the United States became the most technologically advanced in the world  For a powerful country, their aero engines are also at the level of aliens.

    It is now 1942, even if it is the United Kingdom, their jet engine is still in the development stage.

    In 1929, Frank Whittle, a young British air force officer, suddenly wanted to develop a new type of aero-engine. In 1930, Whittle submitted his design concept paper to the Patent Office. After several years of ups and downs  Then, in 1936, Whittle established his own dedicated "Jet Power Ltd".

    In 1937, there was a loud bang in Whittle's workshop, and his first aero-engine prototype exploded during the first test run. However, this is still cross-era, because not only the British  For the first time, and also the first time in the world, the Germans were a year late. However, the German mustaches valued new technologies, so they fully supported them, but Whittle could only fight alone.

    Even with the start of World War II, since the British Spitfire fighters are already very good, the British have no urgent need, and development is still slow.

    It was not until this year that the w2b engine with a thrust of 5.6 kN was installed on the prototype of the g.41 project for the first time and completed the ground taxiing test. At the same time, Whittle also developed an experimental w.2  /700 engine, thrust increased to 8.9 kN.

    This is already a jet engine with quite powerful thrust.  In the field of aircraft engines, there are different standards.  The propeller engine never says how much thrust it has, only how much horsepower it has.  This is because this kind of engine needs to drive the propeller to be able to convert it into thrust, and the efficiency of the propeller to convert thrust is different at different heights and under different conditions, so it is not convenient to measure how much thrust, only how much horsepower  .  However, since a jet plane jets directly backwards, it can be directly measured by thrust, which is actually more appropriate.  From a technical point of view, this kind of thrust is not low.  But it still hasn't reached a practical state.  If you want to push the fighter, you have to use more than two.

    Of course, Whittle is not the only one who develops jet engines. The British company De Havett purchased Whittle's patent in early 1941, and then made improvements. The work went smoothly, and by this year, the debugging had been completed.  It can be seen as the structural simplification and optimized design of the Whittle engine. By 1943, the thrust of this engine reached an astonishing 10.2 kN, and the blue is better than the blue.

    These engines are used in fighter jets, and may be able to make do with them.  But if it is used on a bomber, it will not be satisfactory at all. You can compare the first American jet bomber, which was not put into use until the 1950s after the end of World War II.  This bomber uses six engines, each with a thrust of 32 kN.  So if it is used now, it means that more than 20 engines are needed to propel a bomber of the same weight.  So it is not easy to realize the jet bomber plan.

    Everyone was excited when they heard Qin Baoshan talk about jet engines just now.  Indeed, the jet engine has a simple structure and high power, and there is no need to worry about the thin air at high altitudes, so it should be the most suitable.  But today's jet engines are far from practical.

    The person in front of him did not know where he got the news about the jet engine.  But he was just talking on paper. Thinking of this, Mr. Wright couldn't help shaking his head: "Mr. Qin, your proposal is very good, but this proposal cannot meet our requirements for the time being."

    Qin Baoshan nodded: "Yes, if you only rely on jet engines, the power is too weak. So I have an idea, is to use the jet engine to drive the propeller.  This will perfectly solve the problem.  "

    Anyway, it's just cheating, Qin Baoshan can just say it casually, and this thing is not impossible.  It is not powered by jet, so it is not called a turbojet engine. It is mainly used to output power through a transmission shaft. This kind of engine has a special name in later generations, called a turboshaft engine. It is also the main type of aircraft engine.  , various propeller aircraft, almost all use turboshaft engines.

    This sentence on Qin Baoshan confused everyone, you didn't mean to do it.  Jet engine?  How did it turn into a drive propeller again?

    This time is the time to show Qin Baoshan's ability, and he popularized the knowledge of aircraft engines to the big guys.

    "If you only use backward jetting, then the gas will be wasted after jetting out. At the rear of the engine, you can add a few more layers of turbines to let the gas drive the turbines to rotate. Then drive the front propeller through the drive shaft. In this way  A large amount of power can be transmitted to the propeller in this way. Of course, if the speed is not suitable, a reducer can also be added. Because the propeller is relatively large, it can provide greater thrust. If a jet engine can  If it provides a thrust of ten thousand Newtons, then use it to drive the turbine, and then drive the propeller to rotate, then it can provide a thrust of more than forty thousand Newtons."

    "In this way, we not only use a jet engine with a compact structure that is naturally suitable for high altitudes, but also overcome the problem of insufficient power of this engine, which can meet the use of our bombers. And the transformation is not complicated." Qin Baoshan said all these benefits  Speak up.  (Remember the site URL: www.hlnovel.com
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