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Volume One Sino-Japanese War Chapter 74 Artillery Modification

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    Dongjiadu, as a wharf in the French Concession, is considered a relatively large-scale place in Shanghai. Moreover, in fact, this industry is closely related to Daotai Huang Zuluo However, this is obviously not suitable for the silk reeling factory opened by Lu Hong here.  It can provide a lot of convenience. Sun Heshun is currently watching Cheng Daqi and five or six apprentices nervously assembling the machine in the Linhe factory. On the other side of the factory, an old steam engine obtained from Jiangnan Manufacturing Bureau is also being debugged.  Lu Hong¡¯s thoughts are obviously not on this newly-baked silk reeling machine. The machine has been assembled and tested in the factory. Except that it is not connected to the steam engine transmission, there should be no problems at all!  What he is thinking about now is naturally the two ships Nanrui and Nanchen that have been drying on the Jiangnan Shipbuilding slipway for several days. According to the news brought by the shipyard assistant, the painting of the hull has been completed. However, he proposed to strengthen some parts of the hull.  Engineers in the shipyard all said it was difficult to handle the plan. The reason they proposed was very simple. The armor installation method of heated rivets used in this era. Once the installation is completed, it is absolutely necessary to remove the large rivets that are riveted in a red-hot state.  A time-consuming and labor-intensive matter.  However, after Lu Hong personally took Lu Jianzhang and Qi Fengyi around the two warships, they stopped at a group of gunners who were training at the stern He was also quite helpless towards these two old warships.  The only thing that made him slightly satisfied was the newly installed 120mm rapid-fire cannon at the stern. He spent 10,000 yuan to buy this rapid-fire cannon through the back door from the Jiangnan Manufacturing Bureau warehouse in the name of testing. The overall workmanship was indeed good.  The gun barrel is 4.2 meters long, with a full diameter of 35 times. There are 22 rifling lines visible on the mouth of the gun barrel, which shows the Jiangnan Manufacturing Bureau's craftsmanship in artillery boring. The whole gun weighs 2.1 tons and is made of standard Krupp  The bottom sleeve technology ensures the safety of the artillery. However, the only thing that makes Lu Hong slightly criticized is actually the spiral pattern on the tail of the breech bolt. Tightening this thing is really a laborious task and a waste of time.  For Lu Hong, the 120mm artillery with 35 times the caliber is indeed not a top-notch weapon. The 120mm rapid-fire cannon on Yoshino in Japan has long been 40 times the caliber. However, considering the premise of Jiangnan Manufacturing Bureau's self-made, it can be mass-produced after all.  This was within the acceptable range, but the efficiency of the Jiangnan Manufacturing Bureau gun factory really made him ashamed for a while.  In early 1893, the 120mm rapid-fire gun process was completed with the introduction of Krupp machines and technician training. However, for a whole year, when he mentioned this artillery to Ruisheng earlier, the man said with an embarrassed look that the entire artillery bureau was at a loss.  Only 12 doors were produced in the year and 6 of them have been ordered by Li Hanzhang, the governor of Guangdong and Guangxi that is, Li Jingxiang's old man and Li Hongzhang's eldest brother. However, the money has not been paid yet, so it is still in the warehouse.  .  The other one was delivered to Beiyang for testing years ago. However, Beiyang Minister Li Hongzhang has not placed an order yet. Therefore, Lu Hong spent 20,000 to buy the right to use it in the backdoor transaction. The other three are still in the gun bureau.  Ruisheng is willing to sell the artillery to Lu Hong. However, Lu Hong's money is also very tight. Although there is a large investment, it must build a factory and produce benefits, otherwise there will be opportunities to take advantage of him in the future.  I'm investing my own money here!  Lu Hong's proposal for this artillery was to use Lu Hong's custom-made simple round-handled lifting machine. The entire gun mount increased by 0.2 tons, but it was only 2.7 tons. In addition, a vertical pendulum was added to the gun mount as a  A simple indicator showing the pitch and horizontal position. Lu Hong was quite satisfied with this overall transformation.  According to the "continuous aiming artillery technique" taught by Qin Kai, Lu Jianzhang has trained the grassroots soldiers of 10 artillery groups. Of course, because the Nanrui and Nanchen ships are now painting on the slipway, their training can only be done with  It was just a simulation of training bombs. However, as for the effectiveness of this artillery technique, in fact, Lu Jianzhang and Qi Fengyi, who were temporary instructors, were not very sure.  Lu Hong watched several groups of soldiers loading in a decent manner, constantly shaking the machine up and down, left and right, and pushing the turntable according to the instructions In fact, this manual turntable is very different from the steering wheels of later generations. Lu Hong  Hongdao has also thought about modifying this thing, but this involves a major modification of the entire gun mount, and there is really no way to do it all at once. Fortunately, it is flexible enough to rotate left and right. Although there is no precise scale mark, it is still usable.  .  He turned around and nodded to Lu Jianzhang, "Jianzhang, this training is going well. When the ship is repaired as a whole, we will take it out and practice with live ammunition shells, I will go to Ruisheng to get some. There are no real guns.  There is no way to improve your artillery skills by practicing with live ammunition! " "Sir, these brothers we have recruited are all good soldiers in the Navy. They practice from morning to night every day, and there is absolutely no slacking off  Don't worry, with more than half of you, you will definitely be able to master this new artillery skill!" Lu Jianzhang grinned and responded loudly.  He and Qi Fengyi both had expressions of awe on their faces. Lu Hong described this continuous aiming artillery skill as miraculous. TheyThey are still a little confused in their hearts, but as they are proficient in the principles of gunnery, they naturally understand the key essence of this gunnery. Although they are not sure what effect Lu Hong's approach can achieve, it is definitely a major improvement in gunnery.  , and I admire Lu Hong from the bottom of his heart for being able to master this new artillery technique.  Lu Hong nodded. This advancement in gunnery can naturally greatly improve combat effectiveness. Although the tube retreat technology used in the rapid-fire cannons manufactured by the Jiangnan Manufacturing Bureau is actually still relatively outdated, the hydraulic retreat device is still relatively outdated. However even so, due to the use of  With ammunition integrated into a copper shell, the gunners trained by Lu Jianzhang have been able to achieve a good efficiency of 4 rounds per minute during training.  However, the weaknesses of the two warships Nan Rui and Nan Chen were actually very clearly laid out in front of him. After all, they were old ships from 10 years ago. He pointed out the weaknesses of these two warships very directly in front of Lu Jianzhang and Qi Fengyi  At best, it is an iron-hulled warship. In terms of protection, with 1-inch wrought iron armor, the Hotchkiss 37mm cannon, which is the most equipped warship in this era, can penetrate at a distance of 1,000 meters, let alone 120mm and 150mm.  Rapid-fire cannon.  Lu Hong naturally wanted to let the two temporary agent supervisors he hired to figure out the situation. Fortunately, Lu Jianzhang and Qi Fengyi had also given lessons, so there was no barrier to communication in this regard. They also had the same feelings about the current situation of the Nanyang Navy.  Next, Lu Hong led several engineers on an inspection tour and gathered together the situation. It was even more shocking. The long-term maintenance was not in place. The original four circular horizontal fire tube boilers in the two battleships were severely carbon-sintered, and the entire water tube boilers were severely damaged.  The steam pressure in the furnace and boiler is only 70% of the original state, which also means that it is difficult for Nanrui and Nanchen to reach a speed of more than 12 knots!  Later, Lu Hong found more than a dozen veteran shipyard engineers and specifically asked about the possibility of boiler modification. However, the answer he got made him extremely depressed. It was not impossible for Nan Rui and Nan Chen to modify the boiler.  , However, this life cannot be done at Jiangnan Shipyard There is no experience and ability to dismantle armored ships here.
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