An hour later, a two-ton flat-top truck loaded with 120 cylinders slowly drove into the warehouse to load six seamless steel pipes, and Zhu Daolin generously paid the taxi driver double the price of the car, got into the cab of the truck driven by his friend, and arrived at Duan Deming's mountain factory in just two hours.

After Zhu Daolin paid the freight, the two young workers immediately led the bus to unload, and Duan Deming pulled Zhu Daolin to the dinner table.

Because the matter that the two brothers talked about was quite sensitive, Duan Deming didn't let anyone else come to accompany the wine, and asked happily after three glasses of wine:

"A few days ago, I just saw on the Internet that buddies in the Middle East use gas canisters and seamless steel pipes to make rocket artillery, which is simple and easy, and can be learned as soon as possible, the range and power are not small, much stronger than the conscienceless cannon of our army back then, you kid won't be with them, right?"

Zhu Daolin picked up a piece of stewed mountain chicken with sauce and stuffed it in his mouth: "My buddies here are much more backward than their buddies in the Middle East, they still use home-made black fire and medicine, and they have never heard of fuses or anything, and they can think that using fuses as fuses is considered a high-end talent." ”

"So, I can only buy some cylinders and seamless steel pipes back, please help process a batch of unconscionable guns and improvised rocket artillery samples, take them back and let them paint the scoop according to the gourd."

Duan Deming was so happy: "Actually, your idea is good, a little processing of liquefied gas cylinders is a high-power mortar cannon, and its safety and accuracy far exceed the conscienceless cannon invented by our army's predecessors." ”

"The rocket artillery processed with seamless steel pipes is slightly more complicated, but it is the mortar principle, and the slightly more difficult thing is the quality of the propellant, the calculation of the dosage and the detonation method of the warhead, in fact, these things are very simple, as long as you have experience in the production of fireworks, you will talk about it."

"Rocket artillery is very important, you can help me figure out a way, it's best to help me make two sets before the day after tomorrow." Zhu Daolin said his request.

Duan Deming nodded: "What do you want?" ”

Zhu Daolin replied: "The mortar needs to be installed on the carriage and run around. The firing base is durable, the elevation angle and firing range can be adjusted, the firing range is more than 400 meters, the ignition hole is safe and simple, and the weight of the gun body and base does not exceed 60 kg. ”

"There are two styles of rocket artillery, one is a quadruple for sail warships. One was an eight-pack for land wagons, and if possible, it was best to install a bolt for breech-loading purposes. ”

Duan Deming pondered for a long time: "Each mortar needs two cylinders, which are cut and welded into a 90-centimeter-long gun body, and then welded with a circle of steel hoops to reinforce, polish the inside and outside smoothly, and the base is also simple, tomorrow I will ask you to make 5 guns first." ”

"Breech loading of rocket artillery is no problem. Since the chamber pressure of the launch is not large, the seamless steel pipe you bought back is enough, and you don't need to buy special steel pipes. ”

"Later, I will find the old technician in the factory to calculate, draw the processing drawings, send them to the maintenance department for those masters to process, and then use the lathe to make wedge gun bolts, and make two sets of rocket launchers for you tomorrow afternoon at the latest."

"I sent people to the Miao Village in the south to get dozens of catties of black fire and medicine back, and we dragged two gas canisters out to try it. I'd love to see how powerful this thing is. ”

After lunch, Duan Deming and the two old technicians according to the caliber and length of the cannon body, black fire. Parameters of the drug. After meticulously calculating the amount of charge, launch weight, and other data, the design of mortars and rocket artillery began.

The design of the mortar processed from liquefied gas cylinders was completed in half an hour, and when it came to rocket artillery, the contradiction came out.

The two veteran technicians believed that in the absence of electronic ignition, relying on the primitive ignition method for firing, the more unreliable the number of combined rocket launchers is, which not only affects the shooting accuracy. It will also extend the launch time and reduce safety.

AFTER REPEATED COMPARISONS, DUAN DEMING PUT FORWARD AN IDEA, BELIEVING THAT THE CALIBER OF THE ROCKET IS 120MM, PLUS THE LENGTH OF THE CARTRIDGE AND TAIL IS ONLY 80MM, AND THE WEIGHT IS NOT LARGE. The bore pressure is not high, the four barrels arranged in a rectangular shape are a group, and the specially processed integral gun bolt is adopted, which can seal the breech of the four gun barrels with only one operation, and the firing cable is concentrated in the ignition hole in the center of the bolt, so as to achieve the effect of firing four rockets at the same time when firing at one time.

Although this method can be done, the processing cost of the bolt has increased several times, and large-scale equipment is absolutely not worth it, and it is better to save money by directly manufacturing mortars.

At the end of the discussion, Duan Deming also made a difficulty, he handed over the design drawing of the mortar gun to the assistant, and instructed him to send it to the maintenance department to make the ten gun bodies first, and then continue to discuss the design plan of the rocket artillery.

Half an hour later, the design drawings of the four-pack rocket launcher and the six-pack rocket launcher arranged in a staggered row were completed, and the two veteran technicians personally sent the drawings to the maintenance department to supervise the production.

In winter, evenings always come early, Duan Deming accompanied Zhu Daolin along the leafy trail to the old warehouse at the foot of the mountain in the west, and informed Zhu Daolin as he went: "The output of steel helmets has increased a lot, reaching about 700 helmets a day, and you can take 6,000 the day after tomorrow." ”

"At the moment there are only 1,200 flintlock pistols in stock, and the daily production is maintained at about 300, if you want to take them the next afternoon, you can get up to 2,000 at most, but the production of steam engines has risen, do you think you need to adjust for a certain variety?"

"IT'S OKAY TO KEEP IT AT THIS SPEED, BUT THE DISCUSSION JUST NOW GAVE ME A LOT OF INSPIRATION, DO YOU THINK YOU CAN HELP ME PRODUCE 60MM, 80MM AND 120MM MATARS? You can just produce the barrel, and I'll do the other parts myself, so it's safer for you. Zhu Daolin asked.

Duan Deming grinned: "Thunder and mercury have been produced?" ”

"Not yet, but the progress is not small, thanks to the detailed supplementary information you gave me last time, it is estimated that it can be solved before the end of the year, and it is precisely because I saw the dawn that I dare to think of mortars." Zhu Daolin replied.

"How many are you going to want for each model?" Duan Deming was very willing to take over the business of manufacturing mortar barrels, which was very simple for him.

Zhu Daolin estimated a little and quoted three approximate figures: "2,000 60MM barrels, 5,000 80MM barrels, and 3,000 120MM barrels. ”

Duan Deming agreed: "No problem, the pipe is easy to buy, just give you the firing pin to do your best, and deliver ......it before the Spring Festival."

"My old man knows that you are here, just now when you went to the toilet, he called my mobile phone, and asked me to take you back for dinner, the two golden silk big nanmu you sent last time are too precious, I have looked for connoisseurs, and I can't buy it without 50 million, so I don't know how to thank you!"

"So...... You know, let's go to my old man's for a drink tonight. ”

Zhu Daolin smiled slightly: "If you really want to thank me, you can process all the 120 cylinders I bought back today into mortars, help me build the adjustable base installed on the carriage, and I will take it before the middle of next month." ”

"No problem, it's very simple to process this thing, if you don't think it's enough, tomorrow we will go to the provincial capital to buy 500 cylinders and come back, and by the way, buy dozens of seamless steel pipes, enough for 300 mortars and 100 sets of rocket artillery, so that you can bother me with this kind of big and small thing that can't make money in the future." Duan Deming said indifferently.

Zhu Daolin was happy: "This is the best, I can't ask for it!" It's decided, I'll set off immediately after breakfast tomorrow morning, I'll pay for the materials, and the processing fee will not be given to you, and it's a fool to make a cheap profit. ”

************

PS: Thank you Shan Qingying for your continuous reward! Thank you for yesterday's fragrance, or can't see the big monthly pass encouragement!

Xiaohuo continues to ask for subscriptions, tips, referral tickets, and monthly passes! Boom! (To be continued.) )