The tank destroyer is so fierce that everyone is staring at it.

After driving for almost twenty minutes, Duan Yunpeng drove the tank destroyer back, and before the car could stop, Li Yunlong jumped down from it and said excitedly: "NND, this is too cool, Lao Tzu wants to drive the tank destroyer and overturn the little devil's tank!" ”

The leaders all stepped forward one after another, sat on it and experienced it, although it was not opened, but the feeling of being under the high stars was indeed very good.

Duan Yunpeng also got out of the car, and a leader said happily: "Comrade Duan Yunpeng, this car is really good, didn't you say that there is anything else, can it be loaded with rockets?" ”

Duan Yunpeng said with a smile: "That's right, the chassis of our tank destroyer is a wheeled vehicle with high generalization, so as long as we install a rocket launch box on it, it will become a self-propelled rocket artillery with intensive firepower, and it can be fired at most forty rockets at the same time, and the firepower is comparable to that of an artillery battalion." ”

The leaders were very excited when they heard this, and asked Duan Yunpeng to develop self-propelled rocket artillery as soon as possible, and when the time came, the Eighth Route Army would be equipped with self-propelled rocket artillery, and the little devil would not be an opponent.

Duan Yunpeng said with a smile: "Please rest assured, we are stepping up research and development, and in the future, this wheeled armored chassis can also be equipped with howitzers, mortars, and even anti-aircraft guns, etc., and it will become a self-propelled howitzer, self-propelled mortar, and self-propelled anti-aircraft gun with very high mobility." ”

Zhao Gang said on the side: "Yes, these transformation cars are very powerful, but they are still the most urgent need for self-propelled rocket artillery, and I think this kind of rocket artillery will soon surpass the barreled artillery and become the god of war." As early as 1805, the British car people made the first practical rocket, the range of 1,800 meters, in 1806, the British army used this primitive rocket artillery, its accuracy is too poor, but the power is amazing, I think this time we made the rocket artillery, it will be very good! ”

Duan Yunpeng said with a smile: "That's right, our rocket artillery can be forty or twelve, the caliber can be large or small, and the firing range covers ten to thirty kilometers, which is much stronger than field artillery." Now both Germany and the Soviet Union are developing rocket artillery, so we must also be ahead of the curve, self-propelled rocket artillery, after firing, to be able to quickly transfer positions to ensure their own safety, which is very important! ”

It is true that Germany has been studying rocket artillery for several years, but the problem of accuracy is relatively large, so only a relatively small number of them were produced, equipped with 300 six-barreled 150-mm rocket launchers, as well as 280 and 320-mm heavy rocket launchers.

The Soviets have now also made some rocket artillery, but it is a guide rail type, which is much worse than the box rocket launcher designed by Duan Yunpeng.

The problem with rocket artillery developed by the Germans and Soviets is that they are like small gas canisters. It's short and thick, which really affects the range and accuracy.

And now the rocket artillery designed by Duan Yunpeng, they are similar to the rocket artillery of later generations, the body of the projectile is slender, and the solid propellant is used, so the flight of such a rocket is very stable, and there is a spiral groove in the launch tube, which will make the rocket rotate quickly when launched, and the accuracy will be guaranteed.

After listening to Duan Yunpeng's introduction, the leaders liked it very much.

The next day was another big day, because today was the time when the world's first turboprop engine rolled off the assembly line and was commissioned.

This morning, the leaders also came to the assembly workshop early, two turboprop engines, has been off the assembly line, and put on a big red flower, they are the power plant of the future long-range bomber, the world's most advanced turboprop engine, each output power of 1,600 horsepower, in terms of weight and dimensions, far smaller than the aviation piston engine.

This results in less aerodynamic drag and faster aircraft.

The simple and grand off-line ceremony can be said to be gratifying, with the engine, is the long-range bomber still far away?

After the off-line ceremony, an engine was sent to the test bench and installed on the test bench along with the six-bladed propeller.

Today's test run is very attractive, the leaders have not seen what is the aero engine test, of course, this test is relatively simple, unlike the later generations of aero engine test, there is a lot of data collection, today as long as the output power, after all, there are not so many instruments to display.

Therefore, at the time of installation, Duan Yunpeng introduced to the leaders what is the test run of an aero engine.

After all, it is to go to heaven, and if the engine fails in the air, or even catches fire in a serious way, and stops, it will be over.

Therefore, it is necessary to determine the reliability of the aero engine through test run, as well as whether its output power can meet the design value, and whether its fuel consumption can also meet the requirements of the design index.

Everyone is looking forward to the performance of this first turboprop engine.

The maximum output of 1,600 horsepower is indeed very powerful, equivalent to the output of two aviation piston engines of the same weight.

If it weren't for Duan Yunpeng, then the turboprop engine would have been used in this world for more than ten years.

After the preparations for the test run were ready, Duan Yunpeng personally pressed the ignition button, only to see that the turboprop engine on the test bench began to roar, its exhaust pipe spewed heat flow, and the propeller blades also spun rapidly.

The engine started very successfully, and only the fuel in the oil drum was quickly sucked into the engine.

The power display meter and the hands are also starting to turn, and the output power has gone from quickly to 300 horsepower, of course, this is still a low power state, the throttle is increasing, and the engine output is also rising.

The leaders are staring at the meter, watching the power continue to rise, and the leaders' hearts are surging.

It seems that this turboprop engine is indeed very powerful, and it finally reached 1,700 horsepower, but the throttle has not been added yet, and Duan Yunpeng does not dare to add it again, for fear of damaging the engine, after all, this engine is very expensive.

The engine ran for half an hour in the cruising power state, that is, the 1,000 horsepower state, and the first test run was successful, Duan Yunpeng turned off the engine and said happily: "Leaders, our turboprop engine, the first test run was a complete success1"

The leaders applauded one after another, praising Duan Yunpeng's superb technical ability, and hoping that he would develop a long-range bomber for the Eighth Route Army as soon as possible.

Duan Yunpeng said with a smile: "Don't worry, we are already preparing to build, and in half a year at most, our long-range bomber will come out." ”

The leaders were even more excited when they heard this, and the bombing of the little devil's homeland was just around the corner.