850. Engine problems
On October 23, 1938, Bai Shujie's "European Trading Fleet" set off. This time, because the six old men traveled together and had to travel to Europe, Meng Kaihua, the leader of the special operations team, shouldered extremely heavy responsibilities.
These six old people are: Lin Heier, Wang Yidao, Wang Yihammer, Shen Xuemin, Mu Yuwen and Zhao Jinxi's mother. In the Rehe Front Army and the current Flying Dragon Expeditionary Army, they are all grandmother-level deposits.
Huang Qiaoyun, as Lin Heier's youngest female disciple, and Xiao Lamei, as Bai Shujie and Zhao Jinxi's sweethearts, did not fall behind this time, and specially formed a female platoon, all M1911 women's Browning pistols, to serve six old people.
Meng Kaihua and more than 1,000 of them were equipped with folding "self-defense assault rifles", mainly to ensure that no pirates boarded the ship.
Two cruise ships took the lead, followed by 27 freighters. The first stop is Manila, where the freighter needs to procure some supplies, mainly fuel, of course.
The second stop was Jakarta in the British colony of Singapore, from where the fleet was to continue northwest via the Strait of Malacca.
It then enters the Red Sea through the Gulf of Aden and crosses the Suez Canal into the Mediterranean. It then crosses the Strait of Gibraltar into the Atlantic Ocean and heads north to Southampton, England, where Wang Xinlan will greet you.
The last stop is Emden, where Wang Xinlan's German office is located, and where the European Wyvern Ocean Shipping Company is located.
At present, two shipments have been sent, and at first there was no shipping company of its own, so the first shipment was sent to Florida in Basket Parsley. The second shipment was Thorpe and others, who returned through the Atlantic and Indian Oceans.
Wang Xinlan has been tested by a year of time in the world, and she does not dare to let Thorpe and others arrive in the United States. If the Americans get the first step, that's a big problem. I directly hit chickens and eggs, and bamboo baskets beat water!
Lan Caiqin of the United States and Wang Xinlan of Europe did not know why Bai Shujie's order was to end all ocean-going shipping and return all ocean-going ships to the Korean Peninsula by the end of June 1940.
The most outrageous thing is that Bai Shujie actually asked half of the ships to buy fuel and the other half to buy mahogany to bring back to Pyongyang. Does Bai Shujie want to change his career to make furniture and become a furniture boss? Nobody knows.
The huge fleet sailed under the German flag, and the next morning it joined the eight freighters that had entered the port of Incheon in the waters west of Jeju Island, and then set off in unison.
Bai Shujie didn't care about these things, but took the treasure of Mon Ohs and rushed to the secret warehouse of Jiufengshan Airport overnight.
"Mr. Munne, I'd like you to see what's wrong with these engines?" Bai Shujie was a little worried: "I wonder if the Americans will do ghosts here?" ”
Munn saw the latest GR-1830-39 (G2) "Whirlwind" star engine, but his eyes were straight and he didn't hear Bai Shujie's question at all.
After more than half an hour, Munn made more than 100 turns around an engine, and finally came to his senses: "This engine is indeed very advanced, and the craftsmanship is perfect, it belongs to the pinnacle of piston engines, and there is almost no room for improvement!" ”
Bai Shujie somewhat understood: "According to Mr. Mun, the piston engine has reached its peak at this level, and there is no possibility of progress, right?" ”
"The commander-in-chief's opinion is basically correct, but it can't be understood like that!" Munn shook his head: "The star engine is a piston engine with cylinders surrounding the crankshaft and arranged in a star shape. The number of cylinders is mostly an odd number, and this is a 7-cylinder engine. If it becomes a nine-cylinder, the power can be increased by 20%. ”
"I used to study this kind of star engine, but there was no large quantity of high-quality steel in Germany that could be used as a real material, so I was forced to give it up. In fact, this kind of star layout can also use a double-layer or even multi-layer architecture. In other words, two sets of cylinders are connected in series, which increases the thrust. ”
"The biggest advantage of the star engine is that the rotary crankshaft is greatly shortened, which more than halves the length of the engine. This is reflected not only in the lighter weight, but also in the air, when it is difficult for the enemy to hit the engine, so the vitality is increased. The scientific and technological strength of the Americans is really strong, and I have to admire it. ”
"Also, the star engine is easy to maintain because the cylinders are concentrated in the front. The in-line engine is relatively long, and part of it is buried in the fuselage, so it is much more troublesome than the star shape when overhauling. In addition, the biggest advantage of the star engine is the high thrust-to-weight ratio, and the star engine is small in size and much lighter in weight under the same power. ”
"Of course, as is the case with everything, there are pros and cons. The disadvantage is that due to the star-shaped arrangement, the diameter is very thick, and the air resistance of the nose part is much greater than that of the in-line type. If it is mounted on a single-engine fighter, the nose of the aircraft will become too thick, and the cab will be behind the engine, so the pilot's vision will be affected. ”
Bai Shujie received some introductory education, and then changed the subject: "Mr. Mun, what have you done in your turbine engine research?" ”
"It's hard to say!" Munn shook his head: "There are many types of engines, but they are all immature. As far as my research results are concerned, the most mature is the turbofan engine, followed by the turbo engine, and the turbojet engine still needs to be verified. ”
"Because it seems to me that as the flight altitude gets higher and higher, the turboprop engine, the piston engine, have come to an end. My main research interests are turbine engines and turbojet engines. ”
"In terms of current manufacturing capacity, if you want to improve the performance of the aircraft, I still want the commander-in-chief to start with the turbofan engine, after all, it is much simpler. If the flight does not exceed the speed of sound, the speed control zhì is within 1000 kilometers per hour, and the turbofan engine is more economical. ”
Bai Shujie nodded: "What I want to know is, how can we produce the turbofan engine used?" For example, the replacement of the current star-piston engine. ”
"I need to go to the steel mill and decide what I can do to improve the high temperature resistance of the steel and increase the strength of the steel at the same time," Munn said with a smile. ”
"Because the fan blades and rotors of the turbofan engine are one of the most important components, the other is the material of the combustion chamber and tail nozzle. I wonder how much financial pressure the commander-in-chief can withstand? ”
"Okay!" Bai Shujie smiled: "For the sake of your real problem, if there is really no way to support it, I can reduce the army by 20,000 people!" However, what I would like to ask is, like this bomber, if the parts are complete, do you have a way to direct skilled workers to assemble it? ”
"That's not a problem!" Munn smiled: "If I can't even assemble this kind of aircraft, then I can't even find the most basic balance of the aircraft, how can I study the aircraft engine?" ”
"Haha, that's it, I'll take you to Pyongyang No. 1 Special Steel Plant, where you will be the chief engineer from now on." Bai Shujie was finally relieved and in a much better mood: "In the future, there will be no output limit for this steelmaking mill, until you test the steel that can process engine parts!" ”
On the car back to Pyongyang, Mun was also excited: "Dear commander-in-chief, what I can tell you is that your generosity will definitely be doubled!" Turbofan engines, once produced, are much more fuel-efficient than today's engines. ”
"I don't dare to say more now, but I am sure that I can increase the range of the bomber I just saw by a third, or even double! That is, half the fuel can be saved, which is a huge economic indicator! ”
In the following time, Bai Shujie let Meng En tinker with special steel, and his main focus was already on the shipyard. Because the day of the return of the submarine is getting closer and closer, the submarine rescue ship must be produced as much as possible.
At first, he was ready to let the "Shenyang 918" undertake the rescue mission, but considering that there was no heavy anti-aircraft fire to back it up, the enemy would not let you rescue the submarine with peace of mind.
As a result of listening to Mun's "literacy education", Bai Shujie has a deeper understanding of engines. The modification of the submarine's engines, the gain of oxygen in the cabin, and the emission of exhaust gases in the cabin all need to be studied immediately.
However, with a powerful turbofan engine, it should be possible to change a powerful ventilator fan even with minimal power. In this way, when the submarine is sneaking in the water, it can discharge a large amount of exhaust gas, thereby increasing the sneaking time and greatly increasing the survivability of the battlefield.
The little devil can't take care of himself now, and if he doesn't hurry up, it will be too late to regret it then.
Among the sophisticated equipment that came this time, there was an oxygen concentrator. It's a pity that no one understands how hyperbaric oxygen cylinders are produced, so we can only wait for the opportunity to see if there are any experts in this field among the next batch of immigrants.
Talent, talent!
Bai Shujie feels that he lacks nothing now, so he lacks talents! I'm just half a scoop of water, it's okay to guide the basic structure of a large battleship, and if you make a mistake, you can disassemble it and start over.
But more sophisticated manufacturing processes, that's all deadly stuff. Once a problem occurs, it will definitely be a tragic consequence of the destruction of the ship and the death of the aircraft. There's no chance to start over at all, he doesn't dare to command blindly!
The top and bottom of the Cangyunli shipyard received cash rewards, and it was in dollars, so the enthusiasm for work increased significantly.
Although everyone only got a passbook, and it was a Swiss bank passbook, those engineers were people who had seen the world, until the true meaning and weight of this passbook, after their explanation, those workers were more excited and worked harder!
It is worth mentioning that Bai Shujie overrode public opinion and promoted a deputy chief engineer named "Kenzo Akita", and he was a Japanese when he heard it!
Not only that, Bai Shujie personally issued a commendation order and rewarded 30,000 US dollars!
It turned out that after the Shenyang No. 918 battlecruiser was renovated by Munn for steam turbines, Akita Kenzo took out a steam turbine to optimize the Americans' boilers, and the thermal efficiency value of the high-pressure and high-temperature heavy oil boiler was greatly improved. In addition, a circulating system is designed to reduce fuel consumption by 1.7%.
This Kenzo Akita has been studying in Europe, and he has also been in Germany and the chief engineer of the Cangyunli shipyard, Qiao Mingde, for two years. When he came back, he was assigned to the Dalian Shipyard, and he did not know about the various evils of the Japanese army.
Later, he was captured by Wei Chong and escorted to pass by the mass grave at Dashiqiao on the way, Zhang Yushu had an idea and let all the prisoners of war see the mass grave and several destroyed mines.
This on-site teaching was a huge shock to all kinds of Japanese technicians who were forcibly brought out from Dalian and Lushun, and at the same time, they also knew what was going on with the "Greater East Asia Co-prosperity" that was usually promoted in China.
After seeing the scene of the mass grave, Kenzo Akita repeatedly said: I must use my own efforts to atone for the crimes of my compatriots!
Bai Shujie is not a person who eats the past, as long as he sincerely repents and does not participate in the massacre, there is room for forgiveness. Anyway, they were all classmates, so they were promoted and asked Kenzo Akita to be Qiao Mingde's assistant.
After all, what happens next, let's see how it will be broken down next time.