This is the earliest kind of ironclad ship, first proposed by the French, and its design idea is very simple, that is, on the basis of the wooden sail battleship, steam power and broadside armor are added.Compared with the wooden sail battleship, the improvement of this kind of warship is not very big, more conservative, except for the chimney on the deck that swallows clouds and smokes, it is not very different from the sail battleship in appearance, and can be regarded as a trial design in the transition period.Like a sail warship, the gun emplacements of this type of warship are arranged on the left and right sides of the ship, the so-called "shipside guns", which shoot outward through narrow gun gates.In 1860, France adopted this design idea, and on the basis of the wooden sail battleship, the world's first shipside artillery ironclad "Goire", caused a lot of shock at the time, and then Britain, Austria and other countries began to follow suit.In the early days, the armor of the gunboats next to the ship was laid on the part where the guns were installed on the side of the warship, which belonged to a kind of local protection.With the development of the design, the overall protection has been paid attention to, and the armor belt on the side is no longer limited to protecting the gun installation part, but extends forward and backward to the bow and stern of the warship, which has played a certain role in protecting the rudder and propeller, and its survivability has been significantly improved compared with the wooden sail battleship.But the shipside guns also had some obvious weaknesses.Limited by the method of artillery arrangement, in order to install more guns, the hull can only be lengthened, so that the size of the entire warship is getting larger and larger, and the area of the armor belt is also getting larger and larger.With the development of artillery technology, in order to resist the attack of larger caliber artillery, warships must use thicker armor, so that the weight of armor is greatly increased, and the displacement of warships is often tens of thousands of tons, and the ship's maneuverability is greatly reduced.For example, the British "Manadoo" shipside ironclad with 124 meters in length and a displacement of up to 10,690 tons, which were interned by Liu Buyun and Lin Yongsheng, who were interned by Chinese naval students in the early days.The guns of the warships next to the ships were arranged on both sides, and it was impossible to turn to the bow and stern of the warships to shoot, which was a great drawback and was criticized early on.After passing the actual combat test of the Battle of Lisa, the value of the ship's bow guns and horizontal formations became more prominent.Under the influence of this trend, most of the original ironclad ships with shipside guns in various countries have been eliminated from the first-line positions, some have been reduced to miscellaneous ships, and some have simply withdrawn from active service.Many years later, the Japanese fleet that participated in the Battle of the Yellow Sea included an improved type of ironclad ship, the Hiei.President Meng's Danzhou 1872 warship is similar to the improved shipside artillery ironclad ship "Hiei".It is precisely because it is a transitional product that it will be sold to him by the Americans, and it is a warship, or a transitional product that has been eliminated by others.Nowadays, it is popular to have a shipside gun room ironclad.When the French were still complacent about their first shipside gunboat, the British designers who were unwilling to be left behind designed the shipside gun house.This can be said to be a kind of warship improved from the gunboats next to the ship, the main feature is that a quadrangular "gun room" is enclosed with armor on the waist of the middle of the ship, and the main guns are concentrated in this armored space on all sides, and the arrangement method in the gun room is similar to that of the guns next to the ship, which is to distribute the guns on the side of the gun.After adopting this design, the vital parts on the warship are concentrated and shrunk together, which is convenient for the implementation of centralized protection of this area, and the "gun room" is protected by thick armor on the front and back, left and right, and the survivability is better than that of the ship's side guns.Because the space in the gun room is limited, it can no longer be arranged along the side of the whole ship like the gunboat next to the ship, and the number of guns on the ironclad ship in the waist gun room is relatively small, in order to ensure that the firepower is not lost, the designers decided to exchange the caliber for the quantity, and the caliber of the gun began to be larger and larger, this idea had a profound impact on the design of warships in the mid-to-late 19th century, and large-caliber guns almost became the characteristics of ironclad ships in that era.In addition to the armor-enclosed gun room, the shipside gun house ironclad ships also began to use waterline armor, and in the later period, in order to prevent enemy shells from shooting into the gun room from the top, some shipside gun house ironclad ships on the basis of protecting the gun room with armor on all sides, and also laid iron armor on the roof of the gun room, and the armored deck originated here.The Japanese have begun to develop ironclad ships, and Japan's industry is catching up with the tail of the second-strongest Japanese shipwaist gun house ironclad ship "Fuso" at a magical speed, using the latest British idea of building warships, octagonal gun room, 4 guns are arranged on the four corners of the gun room, compared with the guns arranged on the side of the gun, such a design can make the guns shoot in the direction of the bow and stern, however, it is necessary to wait for the Fuso to be launched, at least seven years later, Japan at this time mainly depends on the purchase of European and American warships to live.Soon after the advent of the shipside gun house, it encountered the same problem as the gunboat next to the ship, that is, the firing range of the guns in the gun room was too small to turn to the front and rear directions for firing, which did not meet the requirements of the navy's bow tactics against the enemy at that time.In order to solve this problem, the designers racked their brains, and finally proposed a somewhat child's play, but also a little helpless solution, cut off a piece of each of the four corners of the gun room, and open a few gun doors there to arrange the artillery, although these guns arranged in the corners of the firing range is only about 40 degrees, but by this hypotenuse, it can barely be fired in the front and rear direction of the warship.In addition to the waist gun room of the "octagonal platform", the British designed a "changing door frame" warship, a warship with this design, the guns in the gun room can be transferred to different gun positions through the track laid on the deck, and shoot through the gun doors in different positions, although it is too cumbersome to operate, but the guns can be fired in different directions by changing the gun position and changing the door, which is also a way to increase the firing range.However, the sweaty sailors in the gun room, pushing the guns and constantly "changing the door", must have hated this design in their hearts.In order to increase the firing range of artillery, in addition to the octagonal gun room and the "door change type", all countries are racking their brains to find a way, but it seems that everyone has entered a dead end, and they can't get out of the frame of the "shipwaist gun room".In 1861, while the Europeans on the other side of the sea were still busy fiddling with their sideways guns and shipside gun houses, the Americans of the New World went to war for their convictions.Like this nascent nation, the Americans' warship designs were vibrant and creative, and the genius designer John Erickson designed a unique ironclad for the Northern government, which later became known as the "Onitor".It completely abandoned the mast and freed itself from the shackles of sail rigging, and most uniquely, the warship adopted a circular turret that could be turned.This means that, at least theoretically, the guns equipped in such a turret can fire in any direction at the level, which is not the dream of the European designers who buried their heads in the design room, thinking about how to cut a few more corners in the ship's waist gun room.As a maritime empire that regards the sea as its lifeblood, the British will not miss a single technology that can be used to strengthen their navy.Of course, these are just aspects that need to be understood for President Moe, who doesn't even have steel mills and rolling mills, let alone build warships, even build railroad tracks, and don't have the ability to build railways.For President Moe, there is nothing more important now than buying cannons and rifles, buying steel technology.However, the colony that appeared as a vassal country, and it was basically a fantasy to buy these things from the powers, but fortunately, President Meng's Danzhou was in the east, and if it was in Europe, there would be no need to use your brains at all, and even the cracks in the door would not be left for President Meng.No one would be stupid enough to buy equipment for a competitor and then come to fight themselves t1706231537: