Chapter 6 Perfect Patrol
Garibaldi-class armored cruisers, construction began in 1894 and officially entered service in 1896. In total, almost 10 similar warships were built. The Italian, Japanese and Argentine navies, respectively, were equipped. The displacement is between 6775 tons and 7700 tons. The normal speed is at 20 knots. The protective designation is 6-inch armor for the main belt, which extends from the waterline to the middle deck. BOW AND STERN WATERLINE ARMOR IS 80MM, TURRET IS 152MM. Garibal's firepower consisted of one 10-inch main gun at the beginning and one at the end, with a rate of fire of 40 seconds, five 6-inch guns and three 4.7-inch guns on the side chord, 10 57 guns, and 10 37 guns. (Other models differed, some of them replaced the main turret with a twin 8-inch, while others increased the number of side-chord secondary guns to 7 6-inch guns and discarded the 4.7-inch guns.)
From the point of view of the technical conditions at that time, the Garibaldi class achieved a perfect balance of firepower, speed and protection, and the full-rapid-fire gun configuration implemented the firepower output mode based on high-explosive shells and rapid fire in naval warfare at that time. The largest possible and moderately thick protection area allows Garibaldi not only to ensure that it is not penetrated, but also to ensure the maximum amount of firepower and hull buoyancy (there are armor belts in the bow and stern) to avoid the problem of fire falling too quickly in battle due to insufficient gun protection, and also to avoid various tilting problems caused by the secondary protection belts compared to the ship (of course, the 80mm front and rear waterline armor will definitely not withstand the blows of large-caliber guns, But it was completely possible to avoid being beaten into a sieve by a 6-inch gun) And even more commendable, Garibaldi for the first time combined the waterline armor belt and dome armor, with a coal bunker in the middle. Even if the main outfit is broken, it still can't get much water, why? Behind the main installation is the coal bunker, which naturally can't get too much water, even if the coal bunker is empty, there is a dome armor to repel water, and the water inlet will be controlled within a certain limit. As for speed, a speed of 20 knots is quite realistic. It can't be compared to the Dome cruisers, but it is faster than most of the battleships of the time. He can't beat him fast, and he can't beat him as fast as he is. Therefore, on the whole, Garibaldi is undoubtedly a miracle in the history of shipbuilding at that time!!
However, Garibaldi was not without flaws, and due to the conditions of the times and various subjective factors, Garibaldi still had some areas for improvement. First of all, Garibaldi did not use high-efficiency water-tube boilers, which was not a defect at the time, after all, most warships used fire-tube boilers. But as a traveler who strives for excellence, it is a must to equip Garibaldi with an advanced water-tube boiler. Second, completely discard the useless angle of attack. In order to avoid such a tragedy in the Beiyang Naval Division, the angle of attack must be removed, and at the same time, in order to better improve the speed, it is necessary to replace the original bow with a flying scissor head suitable for high-speed sailing. Third, there is a series of reinforcements left, for the long term, after all, if this ship is used until 1905, there is still a gap compared with the new 10,000-ton loading.
Combining technology, design, the purpose to be achieved, and the software and hardware facilities of the Beiyang Fleet itself, Xu Jie completed the approximate technical standards of the new version of the Garibaldi class in 3 days. The first overall design, the tonnage was expanded to 8,500 tons, the subdivision compartment design was adopted, the whole ship was divided into 40 watertight areas, a total of 256 watertight compartments (referring to the historical German production of the Patrol Yakumo, a little more) and the use of double-layer bottoms at the same time, used to improve sinking resistance (mainly for anti-torpedoes and mines), the use of flying shear heads, the second to improve firepower, that is, to replace the single 10-inch gun with a twin 10-inch gun, At the same time, enough space was reserved for future upgrades (the historical Garibaldi was not a complete turret structure, so the rate of fire was relatively slow, only 40 seconds per round, and the later British 10-inch guns could reach 20 seconds per round) The rest of the firepower remained the same. But increase the amount of ammunition reserved. Third, in order to better resist the 12-inch naval guns, the new ship's main equipment will be strengthened to 8 inches, and the upper 6 inches will remain unchanged. The front of the turret has been strengthened to 10 inches. THE GUN GALLERY IS ALL 8 INCHES AS THE STANDARD (INCLUDING THE 120MM GUN GALLERY). The fourth power system, the original Garibaldi class speed of 20 knots, the main engine power of 13000+ horsepower, in order to make the new ship reach a speed of more than 22 knots, the main engine will be replaced with 17000 horsepower, and at the same time, with the flying shear head, the battleship will have the design speed. Originally, Xu Jie planned to refer to the Italian PISA class and use an 8-inch gun instead of a 6-inch gun, after all, the 6-inch gun could not penetrate the non-key protective parts of the later patrol, but considering the size and maintenance capacity of the dock in Beiyang. With a length of 140 meters and a width of 21 meters (Garibaldi is 18 meters) and a tonnage of 10,000 tons, Xu Jie still rationally gave up this unrealistic plan (technically speaking, the ship was also started 12 years later), so the basic technical indicators of this enhanced version of Garibaldi were completed in Xu Jie's planning. …,
But it's not easy to implement. First, the supply of water-tube boilers, which cannot be produced in Italy. I can only find France (it is said that the power system of France is quite NB. In the old dreadnought period, the British empire bought French water-tube boilers for use on its cruisers. During World War 1, France had 80,000 horsepower units. During World War II, in 1940, the French battleship Richelieu was equipped with a crew with an overload power of 178,000 horsepower, and the actual speed reached 32.5 knots. The Bismarck, which was admired by the German school, had only 160,000 horsepower when overloaded. The gap is obvious. Second, the issue of armor, historically, Harvey carbon hardened armor was invented in 1890. But comparatively speaking, Xu Jie prefers to harden armor with Krupp carbon, because the latter has better performance. But chronologically it was 1893. If he couldn't help a certain factory produce enough Krupp armor 92 years ago, Xu Jie would have to settle for Harvey armor. The third 10-inch gun and turret are currently a product of the era, and there was no one in history before 1894. I also have to design it from memory, and then choose a factory to produce. As for the actual production capacity, history tells Xu Jie that production capacity is not a problem at all. Italy that could build 10,000-ton battleships in 1880+. At least 4 shipyards can produce 10,000-ton battleships. And in the course of history known to him, in 90-93 Italy did not produce new battleships. In other words, it is not surprising that the slipways of these factories can fully meet Xu Jie's needs. Of course, the last and most important issue is the question of money!! Historically, Garibaldi's hull cost 500,000 pounds, and after adding weapons, it was about 600,000 pounds. (The 740,000 pounds bought in the book is suspected of being ripped off) and if you want to build this boat, 700,000 pounds will not be able to run!! Where does the money come from?! Is it a problem!!