With the first experience of going to the street, Zhu Yaojiang would go to the street every other day or two, and the number of times he went out of the house was more, and Zhu Yaojiang also saw his nominal husband.

Probably because of the preconceived idea, knowing that the man in front of him was his nominal husband, Fang Nan gave Zhu Yaojiang a very bad impression, Fang Nan didn't know and wouldn't care, since he saw Zhu Yaojiang, he talked to Zhu Yaojiang, and the words were similar to what Zhu Yaojiang said on the first day he came to the Metropolitan Governor's Mansion Hu Xiaoya, so that Zhu Yaojiang could live with peace of mind.

Fang Nan said these words were relatively normal, but somehow, Zhu Yaojiang felt a little uncomfortable in his heart, and retreated in his residence for several days before going out for a walk again.

In the past year since the People's Army occupied Guangxi, Huguang, Jiangxi, and Fujian provinces, the four provinces have stabilized, and Fangnan has also relaxed a little.

In April, the Firearms Research Institute in Foshan received good news that under the leadership of Ye Liangchou, the Firearms Research Institute had successfully developed flowering shells and artillery guns that fired flowering shells, and the official names of the two were grenades and howitzers respectively.

Howitzers are of great significance to the KPA.

At present, the People's Army is widely equipped with two kinds of artillery, one is a light tiger head gun, and the other is a medium and heavy Franc machine gun, the Franc cannon is also a rapid-fire gun, which can only fire solid shells, and the Tiger head cannon can fire solid shells and scattered shells.

The howitzer fired a grenade is a shell that can explode, and the lethal effect on the enemy at a distance is much greater than that of the Francophone cannon, which can be used in both land and naval battles, and the howitzer appears, at least for five years, it is impossible for the KPA to develop more advanced artillery.

Fang Nan accurately and personally went to Foshan to test the power of howitzers, and coupled with the importance of howitzers to the People's Army, Fang Nan directly sent a letter to the three group armies of the army and the navy, asking Wang Shengrong, Yan Han, He Yan, and Zhou Yi to come back and go to Foshan to test the howitzers together.

More than half a year has passed since the official armistice between the People's Army and the Ming Court, and there is no war on the border, but we still have to be on guard against it, and if the Ming Court launches a large-scale war, the movement will not be small, and the People's Army will have enough time to prepare, so that several army commanders will return to Guangzhou City for a few days without much problem.

On April 10, all the high-level leaders of the People's Army gathered in Guangzhou City, and on April 11, Fang Nan took Hu Zhuang, Zhou Yi, Wang Shengrong and others to the station in a special carriage through the railway tracks.

The railroad has been in Guangdong for a long time, as the high-level of the People's Army, everyone was interested in this new gadget earlier, and when they have free time, they have already experienced the railroad and praised the railroad road, and they can see the importance of the railroad to the military, and they also know the teacher's plan to use the railroad to connect most of the cities under the rule of the People's Army.

In the carriage, everyone talked about the railroad again.

He Yan said: "I don't know when this railway road will be able to be repaired to Guangxi, and it will be much more convenient to come back from Guangxi at that time." ”

Wang Shengrong, Yan Han and others also agreed, wanting this railway road to be built faster, they were all in the field to command the troops, even if they all built cement roads, the speed was far from being comparable to the railway tracks.

"It takes at least five years to connect several provincial cities with railroad roads, which are good, but too cumbersome to build." Fang Nan gave an answer.

With the large-scale mining of Shilu iron ore by the People's Army, the Qiongzhou Iron and Steel Plant has also produced a large number of high-quality steel, it can be said that more than 60% of the steel of the People's Army comes from the Qiongzhou Iron and Steel Plant, and most of the rails are directly cast by the Qiongzhou Iron and Steel Plant, and the People's Army is now no shortage of rails.

There is no shortage of railroad tracks, there is no shortage of sleepers, but the People's Army is not short of labor, and there is a shortage of technology.

The People's Army has more than 100,000 coolies in Guangdong, but the coolies have to build cement roads, water conservancy facilities, and railroad roads and dig mines, and no matter how many coolies there are, it is impossible to use railroad roads to connect all cities in Guangdong in just a few years.

Without major changes in the number of coolies, it would take at least ten years to complete the rail connection to most of the cities in Guangdong.

In addition, there are many rivers in Guangdong, and building bridges is a technical task, especially to build a bridge that can resist the railroad tracks, but fortunately, the People's Army has been able to obtain cement in large quantities, plus steel, and there is no problem in giving enough time to build a bridge with steel and cement.

Of course, like the bridge across the Yangtze River, even if there is a square south to open and hang, it will take 20 years or even longer for the people to come up with technology.

While the high-level leaders of the People's Army were chatting, Foshan arrived, and Ye Liangchou took people to wait for Fang Nan to arrive at Foshan Station.

Changing to an ordinary carriage, the group went to the experimental site, Ye Liangchou had already prepared howitzers in advance, and waited for the arrival of the metropolitan governor and the military high-level to prepare a small-scale fireworks show for everyone.

On the way, Ye Liangchou gave everyone a brief introduction to the howitzer developed by the Firearms Research Institute, which is 2.2 meters long, 100 mm caliber, weighs 450 kilograms, and has a maximum range of more than 1,000 meters.

For the data of this howitzer, the military high-level feel that it is okay, the firing range of more than 1,000 meters is enough for the time being, and the requirements for the Franc cannon equipped by the People's Army in large quantities are to have a maximum firing range of more than 1,000 meters.

The military leaders are more concerned about the grenades fired by howitzers, shells that can explode like grenades, and the explosion power is equivalent to the explosion of multiple grenades at the same time, and the lethality of this kind of shells is much greater than that of solid shells.

In the past, various units of the People's Army were equipped with a small number of rockets with a range of 150 meters, but after experiments, it was found that such rockets were very useful in siege and some special tasks, and the arsenal began to increase the production of rockets, which were successively equipped in various units of the People's Army.

If the howitzer is like what Ye Liangchou said in actual combat, then the importance of artillery in the People's Army can be improved, of course, after the importance is increased, it is still not as good as the tiger head gun.

When we came to the experimental site, two howitzers had already been placed in the site, and the two howitzers were in charge of two squads of an artillery unit of the People's Army.

Fang Nan and his entourage first came to the artillery and looked around, the shape of this artillery did not make everyone feel novel, in fact, the shape of this howitzer was similar to some of the artillery shapes created by Ming Ting, all of which were front-mounted smoothbore fire door ignition.

The howitzer of the People's Army has undergone some improvements, with a long barrel, thick pipe wall, large caliber, and the overall shape gradually thickens from the muzzle to the tail of the gun, which conforms to the principle of bore pressure from high to low when gunpowder is burning.

There are cylindrical lugs on both sides of the center of gravity of the gun body, and the gun can adjust the firing angle with this axis and change the firing range according to the amount of gunpowder; It is equipped with a crosshair and a light gate, and the trajectory is calculated according to the parabola, which is very accurate.