After more than an hour of morning exercises, Fang Yan walked into the gate of the shipyard on the Elbe River during his working hours and all the employees. Brom-Foss is undoubtedly much busier today than it was two years ago: the recovery of the German economy under the Dawes plan has also boosted foreign trade, and the orders for various civilian vessels received by Brom-Foss have increased significantly compared to the same period last year.

At this time, in addition to some ordinary merchant ships of three or four thousand tons, there were two keels of unprecedented size lying on the central main slipway: but they were not large battleships built for the German military, but the giant cruise ships "Bremen" and "Europa" ordered from Brom-Foss by the North Deutsche Lloyds Ocean Company. They belong to sister ships of the same class, with a total length of more than 285 meters and a design displacement of up to 42,000 tons; Four steam turbines will provide it with 130,000 horsepower, which is expected to make this sea giant go at speeds of more than 30 knots!

Although these two ships are just luxury high-speed cruise ships ordered by North Deutsche Lloyd's in order to break Britain's monopoly in the field of high-end shipping in the Atlantic; However, the construction of such a ship, which is much higher in tonnage, body size, and power output than a battleship, is undoubtedly a valuable opportunity for Brom-Foss Shipyard to gain experience in the construction of large capital ships in the future. At this moment, on the construction slipway of these two ships, hundreds of skilled workers have gathered; They are working on a makeshift platform, the sound of rivets and the harsh arc of welding rods form a busy scene like a beehive. One day in the future, heavy battleships and giant aircraft carriers will be built in their hands, and Germany will also rely on the return of the navy to the ocean to realize its own nirvana after destruction!

"The construction of light cruisers is indeed a knife for the current shipyard." After seeing this scene, Fang Yan thought to himself in his heart. He now fully understands Rudolph's mood yesterday, and the Navy's qualification review of its own shipyard is simply superfluous. After a moment of silence, Fang Yan turned around and walked towards the main office building not far away; He had not forgotten that the purpose of his visit to the shipyard today was to tell the director of the design office, Lane, the director of the design office, that he would exhibit his work on his behalf at the bidding meeting.

The square windows are clear and clean, and the bookcase is neat. Seeing Fang Yan walk into his office, the gray-haired Ryan looked extremely happy, and he poured a cup of hot water for Fang Yan very enthusiastically, and his greetings were full of respect and gratitude. Since Fang Yan peddled those classic design techniques to him, the performance of the ships under his brush has made a qualitative leap compared to before; And after the arrival of the super-first-class power subsystem technology from Italy, it made his work a step further. After a brief greeting, Fang Yan introduced the topic to the main topic; Ryan quickly had Fang Yan's design drawings retrieved from the archives, and the two exchanged ideas at their desks.

"This is a light cruiser design that I have made for my navy after returning from Italy the previous summer, within the constraints of the Treaty of Versailles. The specific meaning of this is, as I think you may have noticed, is to reduce the proportion of the ship's displacement by reducing the length of the ship, increasing the firepower, protection, and endurance of the battleship, while also disguising its true tonnage through its small size. ”

For the veteran designer in front of him, who has been in the industry for decades, Fang Yan did not have the slightest idea of showing off his talents, but expressed his intentions to him in as concise words as possible: "According to the latest operational needs of the Navy, German ships need to intercept French merchant ships in the Atlantic, and in this process, France's 10,000-ton treaty cruiser will be the most threatening enemy we have to face." They will be armed with 8-inch (203 mm) cannons and are expected to reach speeds of up to 32 knots; In order to be able to achieve the safari mission intended by the German Navy in the round-up of these enemies, I also gave it the corresponding performance elements. ”

"In terms of firepower, the ship is armed with two triple 210 mm main guns, two twin 128 mm secondary guns, eight twin 37 mm anti-aircraft guns, and one quadruple 600 mm torpedo tube. The 210 mm guns were designed to engage the enemy treaty cruisers on a par basis, because only the same class of guns could effectively deal with enemy ships equipped with 8-inch cannons. If the main gun of this caliber is adopted, then the velocity performance of the shells will be greatly reduced, and the enemy will only need to adopt the tactics of long-range fire to achieve an unequal tactical advantage over our warships. ”

"Fortunately, the Treaty of Versailles did not stipulate a maximum caliber of guns for our new ships, and Germany was not a signatory to the Washington Naval Treaty, so there was no obstacle to equipping 210mm guns. In order to save tonnage, I designed only six main guns, the same old ones that had been used on the large cruiser Blucher; However, the muzzling momentum of that gun still seems satisfactory today, and we can achieve the ideal armor-piercing ability by simply replacing it with a new type of shell. ”

Fang Yan paused, and then said, "Considering that when this ship is hunting in the open sea, it will almost certainly engage the enemy treaty cruiser; In this case, its protection needs to be as perfect as possible, and it must not be flooded in large quantities because of a few shells, and then it will not be able to escape the pursuit of the superior enemy and fall into the open sea. Its core compartment is an armor box consisting of 60 mm of homogeneous horizontal armor and 140 mm of case-hardened vertical armor with a 20-degree inward inclination, which is effective against 8-inch shells according to the results of tests conducted by the Italian Navy. ”

"In order to prevent the appearance of underwater bullets, its TDS armor is a 100 mm ~ 30 mm homogeneous armor that is gradually thinned from top to bottom, which is enough to ensure the safety of the core cabin of the battleship under the conventional distance artillery battle without considering the roll. Since the ship has only 2 main turrets, the defense level of the main weapon system is also the same as that of the core compartment. In order to ensure the buoyancy of the reserve as much as possible and reduce the amount of water entering its ocean-going operations, it also has a 60 mm light armor belt at the head and tail waterlines, which can resist direct fire from the destroyer's main guns. Fang Yan further explained.

Listening to Fang Yan's introduction, Ryan couldn't help but open his mouth slightly, this kind of offensive and defensive performance is completely the rhythm of confronting the 10,000-ton treaty cruiser head-on, and even fighting and winning! Although the number of main guns in this case is relatively small, it has an absolute advantage over a potential imaginary enemy in the field of defense; Before Lane met Fang Yan, he had also done several conventional design methods for the 10,000-ton heavy patrol plan, and he couldn't be clearer about the poor armor of these scum. If you really want to exchange fire, it is the heavy protective cruiser designed by this teenager who has the advantage; If you're lucky, a single shell that explodes through the enemy's ship's ammunition depot can end the battle!

"In terms of improving the endurance of the warship, I used a combination of increasing the fuel capacity and installing a cruise turbine. The ship can carry up to 1,700 tons of fuel and should have a cruising range of 6,500 nautical miles / 16 knots at this stage of technology. Although the voyage is still a little shorter, if you can arrange in advance for a camouflaged supply ship to stand by in the ocean, it can be regarded as barely up to the task of breaking diplomatic relations. At the cost of today, even if we have fully integrated Italian powertrain, the estimated rated output is only about 70,000 horsepower; For such a warship with a waterline length of only 145 meters and a full load displacement of more than 9,500 tons, running to 31.5 knots should be its limit. Fang Yan said with a little regret.

While he could increase the ship's speed and range by increasing its tonnage, it would certainly cause a further spike in its tonnage; Now, even as defined by the Washington Treaty, the ship's standard displacement is 7,500 tons, which is 25% more than the 6,000 tons stipulated in the Versailles Peace Treaty. That is, the main size of the ship itself is small on the water, and it is not easy for people to see its true tonnage, so Fang Yan dares to exceed the standard in such a grand manner; However, if the tonnage is further enlarged, it is difficult for Fang Yan to guarantee that he will not be seen by Britain and France, and if he really shows his stuffing, it will be difficult to end.

Ryan said softly, "Young Master Jonas, this plan of yours can already be described as perfect. The large square tail makes up for the increase in high-speed resistance caused by the reduction of the captain, so that the warship can achieve offensive and defensive capabilities while still maintaining a high-speed ship type of more than 30 knots; If you let other foreign designers do it, you must have at least 9,500 tons of standard row to achieve the performance of your solution! As long as you don't get bogged down in a one-to-many dilemma, you'll design a cruiser that will be able to win the battle against an enemy treaty cruiser that comes to hunt, turning the enemy from a confident hunter to a terrified prey. As for the former case, unless God appears, it is impossible for any ship to achieve victory in the face of multiple enemies of equal strength to itself. This praise was undoubtedly from Ryan's heart, and after the year before, he once again saw the horror design prowess of this teenager.

"In that case, I would like to ask you, Mr. Lane, to propose this proposal on my behalf at the Navy tender in a few days. I may not be able to go to Berlin with the shipyard delegation. Fang Yan bowed slightly to the person in front of him. Ryan was stunned for a moment, then nodded in agreement, he understood the purpose of the young man looking for him, but this matter was just a gesture for him.

(The increase in collection is slow, and the author's heart is as cold as snow, so let's click "Add to the shelf" to help)