The six 1,000-material warships fired their cannons one after another, one by one the shells flew out, some of the shells missed, fell into the sea, the explosion produced a high column of water, and some of the shells hit the target, it can be seen that the opponent's warship was shot, sawdust flew sideways, or gunsmoke was filled. Pen "Fun" Pavilion www.biquge.info

"Boom, boom, boom......"

The opponent's ship finally opened fire, firing at Xu Liangyi's fleet, there were two 3,000-material transport ships, and one 1,000-material warship was shot.

"Full throttle and take advantage of our speed!"

There have been several encounters with pirates, and when there is a naval battle, the speed can often play a great advantage, Xu Liangyi saw the ferocity of the opponent's warship, and immediately ordered to drive at full speed, using his speed advantage to throw off the opponent.

In front of the steam-powered sea ship, the opponent's sail ship can only be regarded as turtle speed, and its flexibility is greatly reduced, so that it is difficult for the opponent's cannonball to hit Xu Liangyi's ship.

It is often easier to hit stationary or very slow objects, it is often more difficult to hit moving targets, and as steam-powered ships are set in motion, the enemy's shells obviously often miss.

"Beautiful!"

Xu Liangyi had already entered the command room of his 3,000-material transport ship, and when he saw the naval battle outside, he couldn't help but cheer, most of the opponent's shells missed, while the shells of his six 1,000-material warships kept hitting the target.

The opponent's warship is a sail ship, and the speed is relatively slow, so it is easy to be hit, Xu Liangyi saw that one of the opponent's warships was on fire, and the smoke was billowing out, and he couldn't help shouting happily.

"Boom !!"

There was a loud bang, sawdust flew sideways, and one of the other party's warships must have caught fire in the ammunition depot, and then exploded, and the barrels of black powder in the ammunition depot exploded, and the other party's warship was blown apart, and the scene was very spectacular.

"Boss, look!"

A steward shouted loudly, Xu Liangyi hurriedly looked over, and saw that the other party had a warship coming around from the flank at some point, and was approaching Xu Liangyi's 3,000-material transport ship.

"Idiot, this turtle wants to sneak up on the flank." Xu Liangyi said loudly: "Turn around, get rid of them." ”

The 3,000-material warship made a large radius turn, shook off the opponent's warship, and then, leaned over, ran to the back of the opponent, this is the blind spot of the opponent's artillery, without Xu Liangyi's reminder, the guys in the firing position shot one after another.

"Bang, bang" A burst of gunfire rang out, and at least a dozen people on the opponent's warship were killed, and when the other party finally turned around and turned the hull around, Xu Liangyi's 3,000-material transport ship had already gone away.

"Boss, look, they look like they're going to run away."

Sure enough, the other side began to flee after paying for the sinking of one warship and the damage of several warships. Obviously, the other party had already expected that Xu Liangyi's fleet would not be easy to mess with.

"Boss, should we chase after us?"

Xu Liangyi waved his hand and said, "No need, don't chase after the poor, our first priority is to go back to Shanghai Port first." ”

After all, this is just a caravan, not a navy, the other party has already run, there is no need to pursue, in the naval battle just now, Xu Liangyi not only did not suffer, but also took advantage, and accepted it when he saw it, the fleet formed and continued to sail, and the target was Shanghai Port.

In addition, Xu Liangyi has also realized that if his ship had not given full play to the advantage of speed, the battle just now would definitely not be so easy, and it is really difficult to say who will win and who will lose, because the opponent's warship seems to be more advanced, especially the artillery is obviously more powerful, I don't know if it is a Frankie gun.

Since the other party was scared away, then don't chase anymore, Xu Liangyi decisively ordered the formation to sail towards the port of Shanghai.

…………

Shanghai Machinery Manufacturing Bureau.

Zhang Feng, Zhao Zuolin, Song Yingxing, as well as more than a dozen technical backbones, as well as shipbuilding expert Tang Jianqing, are all together, hanging a schematic diagram of an artillery piece on the wall of the conference room.

This is a breech-loading gun, Zhang Feng personally drawn, and now I am discussing with you, Zhang Feng has a high attainment in the field of engineering technology, combined with the current level of steel smelting, processing technology, Zhang Feng designed this breech-loading gun.

Of course, it is only a design diagram, the basic structure is clear, the principle is clear, but only the main dimensions are not, and the specific design details are not, which need to be perfected by Zhao Zuolin, Song Yingxing, and a group of technical backbones of the Shanghai Machinery Manufacturing Bureau.

The earliest known first rear-loading gun, now in the Bern History Museum in Switzerland, a rear-loading gun, made in 1460~1470, with a caliber of 5 cm, and an open at the back of the barrel, which can be loaded with pre-filled ammunition sub-cannons.

Before the middle of the 19th century, the artillery used by various countries was front-loading smoothbore guns. Although this kind of artillery has exerted unprecedented power in modern warfare and has become the main weapon to kill and injure the enemy, it also has many obvious defects in terms of rate of fire, firing range, and accuracy.

The artillery manufactured by the Shanghai Machinery Manufacturing Bureau in the past, whether it was 70 mm caliber or 150 mm caliber, was all front-loading artillery, but it was originally a smoothbore gun, and now it is a rifled artillery.

At present, the level of iron and steel smelting has been further improved, the output of steel has steadily increased, and the construction of the Anshan Iron and Steel Plant has begun, Zhang Feng believes that the time is ripe for the development of breech-loading artillery.

As can be seen from the design drawings, this gun is upgraded on the basis of the original 70 mm caliber front-loading rifled gun, and some parts are still the same as those of the 70 mm front-loading rifled gun, and some parts need to be improved or redesigned.

The appearance of the barrel does not look much different, except that it has been changed from a front-loading to a breech-loading loading, and it will still use copper-shelled shells, instead of gunpowder wrapped in oiled paper.

Zhang Feng introduced this breech loading gun in detail, everyone listened to Zhang Feng's introduction, looked radiant, many people were in high spirits, everyone knows, if this artillery is trial-produced, it will definitely be epoch-making.

Compared with the previous front-loading gun, this rear-loading gun was changed from muzzle loading to tail loading, which increased the rate of fire; There are perfect locked gun doors and tight plugs, which solve the problem of gunpowder gas leakage caused by the diameter of the shell of the front gun is smaller than the caliber of the fire bag.

In addition, a spiral rifling is engraved in the barrel, and a copper-shelled cannonball with a pointed cylinder is fired at the same time, so that the projectile has a stable trajectory after ejection, improves the accuracy of hitting, and increases the firing range; It is convenient and safe to load shells in battery batteries, including land bunkers and warship suit compartments.

As a shipbuilding expert, Tang Jianqing has always felt that there is a slight deficiency, especially the ironclad ship, such an advanced warship, actually uses front-loading artillery.

After listening to Zhang Feng's introduction, Tang Jianqing's eyes lit up, and he immediately realized the advantages of this artillery, and said happily: "Commander-in-chief, will our warships also be equipped with this kind of artillery in the future?" ”

Zhang Feng nodded vigorously and said: "That's for sure, not only is every new warship we built no longer equipped with front-loading guns, but every warship we have built and is currently in service, including ironclad ships, must go back to the shipyard for refitting, replace the previous front-loading guns, and replace them with new breech-loading guns." ”

After speaking, Zhang Feng said to Zhao Zuolin, Song Yingxing and others: "Old Zhao, Old Song, the burden on your shoulders is very heavy, and everyone is waiting for the successful development of this artillery. ”

Zhao Zuolin and Song Yingxing glanced at each other, both nodded at the same time, both saw the confidence in each other's eyes, Zhao Zuolin stood up and said loudly: "Commander-in-chief, don't worry, we will definitely develop this artillery as soon as possible." ”

Zhang Feng nodded and said: "Not only this 70 mm gun, after the successful development of this 70 mm breech loading gun, we will also develop 100 mm, 150 mm, and even if possible, we will also develop a 200 mm breech loading gun." ”

200 mm guns!

Suddenly, many people were in high spirits, and if the 200-mm rear-loading gun could really be successfully developed, what a great achievement it would be.

In fact, everyone doesn't know that Zhang Feng is already thinking that the future large ironclad ships will be equipped with 200 mm or even more than 200 mm breech-loading guns, and such cannons will be the main guns of large ironclad ships.

Of course, in the absence of a large forging press, to produce cannons of such caliber, we can only rely on casting, casting the barrel, and then machining, boring the inner diameter of the barrel, boring straight, processing the spiral rifling, the outer circle of the barrel is also machined, and finally the qualified barrel is processed.

For the next few days, Zhang Feng stayed at the Shanghai Machinery Manufacturing Bureau, and together with everyone, began the trial production of the first 70 mm caliber rear-loading artillery.

With Zhang Feng for technical guidance, coupled with Zhao Zuolin, Song Yingxing, and a large group of technical backbones, the development of this artillery went very smoothly.

In a few days, it began to enter the manufacture of the barrel, after the barrel is cast, a series of machining processes will be carried out, and finally processed into a qualified barrel.

However, just when the barrel was cast and ready to enter machining, a correspondent came over and reported to Zhang Feng that there was a major military situation.

There was a major military situation, Zhang Feng naturally couldn't stay any longer, and explained a series of follow-up matters such as Zhao Zuolin and Song Yingxing, and Zhang Feng was ready to leave the Shanghai Machinery Manufacturing Bureau.

However, when Zhang Feng left, Song Yingxing reported a gratifying news to Zhang Feng, Song Ying said that he might make a breakthrough in the development of smokeless gunpowder, and such good news made Zhang Feng very happy.

………

Today's three watches, the first one is sent.

It's really hard, the Mid-Autumn Festival holiday, can't go out to play, can only work hard at home to code words, students with tickets, support a monthly pass or recommended ticket, to add a little code word motivation to the shell. (To be continued.) )