"Hello, this is the best wood engineer in Germany that we have hired - Mr. Heliward. Pen, fun, pavilion www. biquge。 infoHe is very knowledgeable about all kinds of wood in the world, and is proficient in woodworking and the production of various boards. He also has an insight into various glues and adhesives, which led us to hire him as the designer of the wooden parts of our aircraft. Sir Daimler himself introduced the prince to the carpenter, who had a gray head. No, it's called a wooden fittings designer now.

"Well, that's good." The prince said calmly, then stepped forward and took the initiative to stretch out his hand to show respect for the other party. What happened to the carpenter? Who told you that carpenters can't be high-tech? Before the end of World War II, wood was still one of the important raw materials for aircraft! The wooden planes built by high-level carpenters are called wood miracles, such as the mosquitoes of the British. And the low-level ones are called flying wood, such as the Russian wooden airplanes.......

The so-called subtleties see kung fu, the heritage of an old industrial power is not only reflected in big aspects such as engines and naval guns, but also in the subtleties It is also very NB, which country did not get a wooden plane in World War 2? But why is it the DH98 mosquito bomber that created the famous family? Didn't the Germans also do TA154? You try to get a plane that's mostly made of wood. It is certain that it can come out, but it is difficult to say about the quality problem.

Moreover, in the environment of World War 1, the scale of electrolytic aluminum is still very limited, and the bulk of the aircraft is still wood! If you change the name, this Mr. Hurley Ward immediately looks tall, like an expert in aeronautical materials! This name is domineering, right? However, before World War 1, this material specialist was no different from ...... carpenter.

Do you really think you can find two pieces of wood, look at the texture, and then see if there are any insects? At most, two press-plying plates are working together? What international jokes? You're producing Flyer One, aviation is a sophisticated industry, and every job is extremely complicated, even the wood processing. And this time, the prince really saw how powerful a top-notch carpenter really is! To paraphrase a sentence from later generations, it is called the champion of the line, and after seeing this plane, Germany has hope to make its own mosquitoes!

"At the request of Mr. Daimler, and in my many years of experience, it was decided that wood should only be used for components with plane stresses. Because the wood itself is not very resistant to torsion and shear stress, which is an unavoidable weakness, the landing gear, engines, mounting points that control the wing surfaces, and all components involved in stereo stress should be made of metal instead of wood. ”

"And when producing the fuselage in other parts, the wood we need to use cannot be a single laminate material, just as the steel armor and hardened armor can improve the strength of the armor through steel plates with different physical properties, the wood we use must also be multiple woods, the outer layer of the aircraft should be strong, so we use high-strength laminate materials, and the interior should be stoic, so we use the wood cores of certain trees as materials."

"Based on my many years of experience, the exterior material should be birch from Canada or spruce from North America, especially the latter, which is the best choice, this kind of tree has a lot of hardness and density, and there is very little resin, it is suitable for industrial processing, the grain is fine and straight, it is easy to paint, and the wood is tight, and it has a good nail force for nails and screws! What's even more commendable is that even in a relatively humid environment, its wet deformation is very uniform and not easy to crack. ”

"Then choose spruce wood, it is more convenient to get it from the Americans," the prince said, thinking about it.

"As for the inner material, I'm going to use Ecuadorian balsa wood sandwich (also called balsha). Of course, this is only a matter of materials, before making the frame, we also need to make a model with mahogany or concrete male mold, and then put various parts into it, fix it with special glue, and then reinforce it with a leather strip, and wait until it is completely cured, and then we remove the leather strip. ”

"According to my superficial understanding of carpentry, if the airplane is in a wet state, the use of the wood you just mentioned will not be affected much, but I am afraid that ordinary glue will not work, right? If it leads to degumming, it will be a disaster for the aircraft. "His Royal Highness the Prince, who is a traverser, does not forget to show off his meager knowledge at this time!

"You're right, the easiest way is to seal the glued area with a single piece of plywood to reduce the erosion of water vapor, and we can also use a special urea-formaldehyde resin glue to increase the strength of the glue." Mr. Helley Ward nodded.

", don't let people live? Does this thing even know about it? As an aviation enthusiast, the prince has read a large number of documents about the Mosquito aircraft in another plane, in which when comparing the German and British wooden aircraft, he mentioned a glue problem, the aircraft adhesive used in the beginning of the Mosquito is not the best choice, in 1944, when the Mosquito was deployed in the Far East, there were many accidents because of the degumming problem, and the German glue was not good. It was not until later that a urea-formaldehyde resin glue called "meteorite" was used to completely solve this problem. What I didn't expect was that in this plane, there were already people who noticed this problem in the first years of the 20th century.......

"Everything is as you say, and I hope that in the future every aircraft of the Bavarian Air Force will be able to use the wood you have developed. Don't worry about the salary and treatment, Sir Daimler has it, you should have it, and I want to ask, is this material easy to mass-produce? The prince asked one last question.

"This is a matter of mold processing and thinking, as long as the idea is in place, the mold is in place, the piano factory and the furniture factory can produce these materials. And we've already built several prototypes out of this new material, including a fighter and a twin-engine reconnaissance bomber. Sir Daimler, who was on the side, replied. These aircraft are much lighter and sturdier than all of our previous aircraft. Especially twin-engine aircraft, which are more difficult to shoot down with ordinary machine gun bullets. We conducted an anti-strike test, and the latter was scrapped after more than 100 rounds were hit. ”

"How's the integration of the aircraft's weapons systems?" The prince thought for a moment and asked.

"It's done, the new sighting equipment and bomb pylons have been installed, and while there's no guarantee of how effective it will be, we can at least guarantee that they'll be able to fight." Sir Daimler said respectfully.

"It would be the best news I ever heard in 1903. I want to see them now. The prince said.

"As you wish, Your Highness." Sir Daimler bowed.

Thanks to the book friend Wang Yao's Young Guard Rabbit, Fallen King, First Guards Tank Brigade, Happy Male Army, Slow Tour, Blue Hot Springs, and Sea Side Reward~~~! As well as book friends who read well, I love the big pig's head, I 19790607, the half-immortal in the sleep, and the monthly pass support of linar ~~~! Ask for subscription, ask for reward~~~!! (To be continued.) )