Chapter 41: Shipbuilding Plan (5)
In the evening, Prince Heinrich returned to the hotel where he was staying and carefully looked at the drawings given to him by Qin Zheng. Prince Heinrich served in the German Navy and was therefore no stranger to warships. Let's take a look at the parameters of the warship: length 128 meters, width: 16 meters, draft: 6 meters, standard displacement of 6000-6500 tons, power output of 18000-20000 horsepower, expected speed of 25-26 knots, shipboard weapons for 6 twin 155 mm caliber 45 times the distance naval guns, 8 twin 100 mm caliber 45 times the distance naval guns, 12 twin 50 mm caliber machine guns, two triple * launchers, 400-500 crew members.
Judging from the performance data, it generally meets the standards of 6,000-ton large protective cruisers, and the ship's weapons are divided into three levels: large, medium and small, which can not only ensure the firepower of the whole ship, but also simplify the composition of weapons and reduce the difficulty of logistics replenishment. However, the estimated speed of 25-26 knots frightened Prince Heinrich, and in this era, several types of fast-moving protective cruisers, Prince Heinrich, knew that the Japanese Yoshino was 23 knots, the Qing court's Haitian and Haizhe were 24 knots, and the Varyag purchased by Russia from the United States was 24 knots. Germany also built several types of large protective cruisers, one was the Queen Oxtar-class protective cruiser with a speed of 21 knots, and the other was the Queen Victoria Louise-class protective cruiser with a speed of 20 knots, which was not a fast protection cruiser.
Prince Heinrich certainly knew that ship speed, firepower, and defense are the three major elements of a warship, and these three elements are mutually restrictive, and the focus of the choice can only be different according to the different uses of various warships; the role of the protective cruiser is mainly to escort the fleet, break diplomatic relations, and counter-break diplomatic relations, and so on, rather than to use them for decisive battles at sea, so more attention is paid to speed than to firepower and defense. The speed of the two types of Queen-class protective cruisers of the German country is not fast, that is, too much attention is paid to protection, which affects the speed.
If this type of protective cruiser designed by overseas Chinese can really reach a speed of more than 25 knots, it will be the fastest warship at present, and it will have a great advantage in conducting a sea-breaking engagement. Compared with this type of cruiser and Germany's Oxsta-class protective cruiser, if the two ships do a single-ship duel, it can only be said that they have their own strengths, and the victory or defeat is five or five, but if the execution breaks the engagement, then the Oxsta-class protective cruiser is definitely inferior.
And Prince Heinrich did not suspect that the overseas Chinese were deliberately exaggerating the performance, because the last time he saw with his own eyes, several warships of the overseas Chinese were capable of traveling at a high speed of more than 25 knots.
Then Prince Heinrich went to look through the drawings, because it was a rudimentary design, so the drawings were very simple, only a plan, an elevation, and two sections. However, looking at the drawings, Prince Heinrich can see that the design of the warships of this era is very different, with a very typical overseas Chinese warship style.
First of all, from the perspective of the overall structure of the warship, it is a long bow structure, the bow is a large oblique flying scissor-shaped bow, sharp as a front, and the cross-section of the hull is an obvious "V" shaped floating structure, and in the plane structure, it is the shape of a pointed head and round tail. These structural designs are very different from the warships of this era, the bow of which is generally vertical or oblique drill wave type, and the hull section is either "U" shape or inward tilt, and the plane layout is a spindle-shaped design with two pointed ends.
However, these designs can be found in the shadow of overseas Chinese warships, which also shows that such designs of overseas Chinese are not deliberately unconventional, but the usual ship design style of overseas Chinese.
But what Prince Heinrich did not understand was that below the waterline in the bow, there was a hemispherical structure protruding forward, somewhat like the ramming angle of a warship, but if it was a ramming angle, it should be in the shape of a pointed head rather than a hemispherical shape, and the length of the ramming angle should be protruding from the bow of the ship, so as to hit the enemy ship, but this warship is a large beveled flying scissor-shaped bow, so although the structure under the waterline protrudes forward, it does not break through the bow, so of course it will not be a ramming angle.
In fact, the hull of the warship designed by the traverser is the most optimized hull shape after the fluid dynamics theory and practice in the old time and space, with a large beveled flying shear bow and a "V" type floating structure hull, which can increase the stability and seaworthiness of the hull, and the ability to resist storms, while the plane shape of the pointed head and round tail is more conducive to reducing the water resistance when sailing at high speeds.
The protruding hemispherical structure under the bow waterline is called the bulbous bow or spherical bow, and its main function is to cancel each other out by the crest and trough of the waves formed by the hull and bulbous nose respectively, and to improve the bow line, ease the curvature of the hull of the waterline, reduce the vortex resistance, and increase the speed. According to the experience of the old space, ships with a bulbous bow can reduce the resistance of seawater by about 10-15%. It is precisely because of the use of so many designs to reduce drag, increase speed, and increase stability that the traverser dares to set the voyage at 25-26 knots. And according to the computer simulation calculation, the theoretical maximum speed can reach 26.7 knots.
The arrangement of the ship's weapons is in the middle of the regulations, and the six twin 155 mm caliber main guns are placed in the bow and stern of the ship, in an inverted "product" shape arrangement in front of the two fronts, but the position of the latter main gun is higher than that of the first two main guns, so the barrel of the rear main gun is above the first two main guns, which can save deck space. This artillery arrangement was called a knapsack structure in the old time and space, and it was also the most mature artillery arrangement in the era of heavy ship cannons. Eight twin 100 mm secondary guns and 12 twin 50 mm guns were arranged on both decks.
Prince Heinrich saw it, and couldn't help but praise the ingenuity of the overseas Chinese, the first type of battleship Brandenburg-class battleship built by Germany was designed to arrange 3 twin guns along the central axis of the hull, but due to the limited space on the deck, the main guns in the bow and stern were all 40 radial multipliers, and the two main guns in the middle could only use 35 radial multipliers, although the 6 main guns were hard stuffed, but they could not use unified shooting parameters, but to install two sets of sighting equipment, so the battleships built by Germany later were changed to only 2 main guns in the bow and stern, but if the backpack structure was used in the Brandenburg-class battleships, it could perfectly solve the problem。
Although in this way, the firepower on the side can only concentrate 8 main guns, on the contrary, it can concentrate 6 main guns in the front and rear, and the firepower is extremely powerful, but the protective cruiser is not used for sea operations, so there is no need to deliberately pursue the maximization of the side firepower, but in the execution of the breaking engagement, the front and rear firepower is more important.
The section also deliberately indicates that the thickness of the dome armor is 80-120 mm, and a 2.1-meter-high broadside armor defense belt was also installed near the waterline, with a total length of about 50 meters and a thickness of 80-100 mm. Although by standard speaking, protective cruisers do not have side armor, on large protective cruisers, a small amount of thin armor defense belts are sometimes designed to strengthen the defense.
After reading the drawings, Prince Heinrich also generally has a certain understanding of the warships to be built by overseas Chinese, although there are many places where the structure is not understood, but Prince Heinrich is still very optimistic about the warship design ability of overseas Chinese, after all, the record of overseas Chinese is there, if you can combine the warship design ability with Germany's shipbuilding ability, of course, it is no better. If Germany can win this contract, it will be a great opportunity to test the ability of overseas Chinese warships to design, and if the results prove the ability of overseas Chinese to design warships, then it is really necessary to further deepen cooperation with overseas Chinese.
Of course, Prince Heinrich has no objection to participating in the bidding, which is a very common behavior in European business practices, reflecting the principle of fair and fair competition. However, there is no absolute fairness, even if it is a competitive bidding, and most of the bidding has a certain amount of black-box operation, which Prince Heinrich knows very well, because he is a member of the German royal family, and there are a large number of projects to be tendered every year, and of course he has seen a large number of black-box operations.
Judging from the current situation, at least Qin Zheng is biased towards Germany, and giving the drawings to Prince Heinrich is a very obvious act. Although other manufacturers will definitely get drawings after signing up, Germany is one step ahead after all. Of course, Prince Heinrich is not a child, and Qin Zheng's behavior is too bold and obvious, so it cannot be ruled out that overseas Chinese have been inclined to Germany, and holding this tender is just a means to reduce prices, which is also very common in Europe.
The specific bidding price is the manufacturer's business, and Prince Heinrich has nothing to do with it, and his responsibility is to pass the news back to China and provide some relevant reference materials to China. Therefore, Prince Heinrich put down the drawings, took out pen and paper, carefully drafted a large telegram, wrote down the details and his own thoughts, and then asked people to send them back to China overnight.
The next day, the Navy Command formally submitted the 1902-1903 shipbuilding plan to the Senate Council, and after discussion in the House of Representatives, the Navy Command's proposal was finally adopted, and the 1902 shipbuilding funds were drawn from the reserves, and the follow-up funds for 1903 were made in the financial plan for that year.
Although the cost of building a ship is huge, more than forty percent of the veteran members of the Senate are military personnel, and they are also from the navy, so they will naturally give full support to the navy's shipbuilding plan, and the construction of warships is also to protect the security of the East China government, and to a certain extent, it can also promote the industrial development of the East China government, not to mention that with the current financial resources of the East China government, it is still affordable, so the passage of the proposal is not unexpected.
After the proposal was approved, the naval command immediately began to prepare for the tender for the construction of the ship, issued a tender announcement, prepared the tender documents, drew up a tender plan, and so on. Prince Heinrich has also received a reply from China, and Germany has officially confirmed that it will send shipyards to participate in the bidding.