The two hundred and two verses are endless

The rolling mill has two cold-drawn steel pipe machines and two cold-rolled steel pipe machines for drawing seamless steel pipes - of course, even if there are no these machines brought from another time and space, there is not much problem in making a few cold drawn steel pipe machines at the high industrial level.

The rolling mill already has sufficient experience in the manufacture of cold-drawn seamless steel pipes - so far all the barrels of the guns produced in Lingao are cold-drawn seamless pipes, and with sufficient production experience, it is not a problem to produce another type of steel pipe.

The new type of boiler is still riveting, and the material is all made of mild steel - the equipment on board is not as serious as on land, and the consequences are much more serious once there is a problem, and there is no explosion of the early marine boiler that does not cause a major accident - safety is the first.

Sun Li and Zhou Billy had the experience of building Lancashire boilers, consulted a lot of information, compared the advantages and disadvantages of various boilers, and then assisted by computer design and selection, zuihou designed and manufactured a "Zhurong II" fire-tube boiler, which was far superior to their early imitation Lancashire boiler in terms of overall structural strength.

THE FINAL BOILER WAS EASILY PRODUCED TO ACHIEVE THE EXPECTED OUTPUT PRESSURE DURING THE PILOT FIRE: 3.5KG/CM2, WHICH WAS TWICE AS LARGE AS THE BOILER USED ON THE GREAT EASTERN IN THE 1850S. THE GREAT EASTERN STILL USES AN OLD-FASHIONED BOX BOILER WITH AN OUTPUT PRESSURE OF LESS THAN 1.8KG/CM2. In order to power the 4800 hp marine engine, six of these large box boilers had to be used.

The only thing that worries Sun Li is that there is something wrong with the pressure gauge on the boiler, and he is very worried that one day the wrong pressure indication will cause a tragedy.

With such a high-pressure boiler, it can not only save the space of the ship's cabin, but also lay the foundation for the development of three-expansion or even four-expansion steam engines in the future.

According to the rated output power of 500 horsepower steam engine, only one such boiler can meet the needs of the steam engine. However, there are still many places where steam is used on board, and the excess steam can be used for cooking and providing distilled water for the crew...... In the end, it was decided to install two such boilers in the hull of the 854 modification.

The 854 engineering team still prudently decided to start using only the simpler 500-horsepower steam engine as the power. Marine steam engines have special requirements for size and mode of operation, so the various standard steam engines widely used in Lingao industry cannot be directly loaded on ships. A marine steam engine had to be redeveloped. The idea was that the steam engine should be a standardized piece of equipment that would be universally installed on all ships that required 500 horsepower if there were no special requirements.

Eventually, Sun Li and others, who were in charge of the development of the steam engine, decided to use the reciprocating inverted vertical steam engine, which was widely used in the mid-to-late 19th century, and which occupied the largest area of the ship, and could also install two machines in the ship if necessary, laying the foundation for the later use of twin propellers. The steam engine manufactured by Sun Li is more efficient than in the past, and can be improved to three or four expansion in the future. The manufacturing director department decided to start with the rebloating type and gradually improve it.

In addition to the 500 hp main engine, two other 12 hp xiǎo steam engines were installed to assist in the power of the xǬngcào, including raising and lowering the sails, driving the guns and retracting the xiǎo boats.

After the power scheme was solved, the biggest jishu bottleneck of the 854 retrofit ship project no longer existed. Zuihou a larger jishu puzzle hull using paint. Although the bottom of the ship is covered with copper and no special bottom paint is required, the entire hull also needs paint as a protective material.

In this time and space, there is no modern paint, and various botanical substitutes such as raw lacquer, soybean oil, and ** oil all have the problem of insufficient quantity. Zuihou ships are painted with asphalt paint extracted from coal tar, which has a strong anti-corrosion effect and is the most widely used marine paint in the European shipbuilding industry before the large-scale use of paint. This foul-smelling thing was applied to the hull, giving the whole ship an unsightly light black sè. So much so that the first batch of modern ships that were on the verge of high production were called "black ships".

Of course, to really build a ship and launch it, it's not just about building a hull and putting an engine on it. With each step forward in the 854 renovation project, the Manufacturing Director Department and the Planning Institute find that countless new problems emerge to be solved. Some of them require the Planning Institute to find new raw materials from various sources. Some of them need the Ministry of Industry to make new equipment, and the more problematic is that they only have jishu materials and no real professionals. Everything depends on the traversal to go to the mōso understanding and shiyan themselves.

“…… The construction of the 854 renovation project has effectively promoted the supporting and systematization of the new industrial system, and enhanced the overall cooperation ability and awareness among the Ministry of Industry. The Ministry of Industry has built 2 new Ministry of Industry for the project, with 297 sets of new equipment, including 46 sets of large-scale equipment, 2,515 pieces (sets) of manufacturing process equipment and molds, and 3,49......0 people and workers have been trained. Shipbuilding Industry Volume, 1st Edition, Internal Distribution, No Citations Without Permission)

Such stumbling forward is fraught with adventure, làng fees, frustration, disappointment, and surprise. So much so that Zhou Ke once said when he was drunk: In terms of the various difficulties he experienced in carrying out the 854 reform project, the rush to launch the 854 project was an unrealistic "Great Leap Forward".

Compared to the 854 renovation, the construction process of the 6 500-ton ships of the sail steam hún power is much more simplified - basically the results and experience gained in the construction of the 854 refurbishment project can be applied to the construction of these ships immediately. Many of the accessories, fixtures and equipment built for the 854 can also be used directly on these vessels.

According to the provisions of the "First Shipbuilding Record", the construction of this batch of ships is Project 901. After some design discussion, the final 901 project plan was a copy of the "90-daygunboat" in the North during the American Civil War, and the lead ship USSU Nadilla started construction late, was launched in mid-August, and entered service at the end of September, hence the name "90 days". The construction period of this type of warship was very short, and it was deeply appreciated by the traversal who were in dire need of a new ship.

The final construction index of Project 901 was a waterline ship with a length of 48 meters, a width of 8.5 meters, a maximum draft of 2.9 meters, a displacement of 690 tons, a deadweight of 507 tons, and a two-masted Barquentine sail. Install a 500 hp steam engine, single propeller. In addition, 1 12-horsepower auxiliary steam engine was installed. Maximum speed 10 knots. The crew is 114 people. The Admiralty designated it as a fourth-class gunboat.

This fourth-class gunboat is positioned to be more responsible for route escort and long-range patrol missions. Cargo tasks are also performed. Its coal bunker area can be adjusted, and the coal carrying volume or cargo carrying volume can be changed according to the different tasks performed.

The 500-horsepower tugboat was named Project 621, and the tugboat was not only used to tow barges, but since a large number of large-tonnage ships were put into construction, the future berthing of these ships in and out of the port could not be solved by the steam boats. It is necessary to have a high-powered tugboat to assist large ships in docking and departing from the dock.

The 621 project adopts double paddle wheel propulsion - paddle wheel propulsion has the advantage of shallow draft, suitable for activities along the coast and in ports, and can also enter larger inland rivers if necessary. Moreover, it is not afraid of the entanglement of fishing nets and aquatic plants that are common in offshore and inland rivers, and the maneuvering xìng of the double paddle wheel is also better, which is very in line with the two horns given to it by the crossing crowd.

While the shipbuilding project was in full swing, at the request of the navy, the modification of the various steamboats originally equipped with them was also put on the agenda, and they were to be replaced with ironwood bearings and newly manufactured cast iron propellers in batches. to improve the combat power of the xiǎo boat. Once the Navy completed the renovation, some of the armed Daihatsu steamboats were transported to Hong Kong and other places for short-distance miscellaneous tasks. Cooperate with the Type II brig patrol boat as the main liliang of the Hong Kong and Pearl River Basin detachment fleet.

A large number of shipbuilding and ship repair tasks continued to pour into the shipyard, so that Zhou Ke had to ask for a double-shift work system at the shipyard. Originally, they used a three-shift system at 8xiǎo, but the lack of workers made it difficult for Zhou Ke to maintain such a labor system. Request for extended working hours.

"Otherwise, there is no point in working three shifts, and my workers are not even enough to maintain two shifts under the current shipbuilding scale." When Zhou Ke met with Wu De, he complained, "Not only do you have to approve my two shifts, but you also have to add workers, even those who have little training." At least it can be a hard worker. ”

"When you have workers working 12 xiǎo in a row, can you make sure that the workers don't have problems in the long run?" said Wu De. In the case of work-related deaths, a few skilled workers lose a lot. ”

"It is said that in the 19th century, workers generally worked at 12-14 xiǎo, and I don't think it would have a big impact on our 12xiǎo work system to last for a few months. In terms of food, I would like to apply for more food subsidies for workers - especially the free ration of protein and candy. Jīng Li supplements can also be distributed. ”

Ude agreed to his request, and subsequently ordered that the labor force that had recently been "trained" from the quarantine camp should be given priority to the shipyard. Most of Parkview Green's weekly "learning to work" activities have been changed to "learning to work" at shipyards and other shipbuilding-related industrial departments. Although these students do not necessarily understand jishu, they can at least write and count - the simplest skill is also rare among the workers in Lingao.