readx; The arrival of the two Beiyang planes did not attract the attention of the people in Nanjing, because as long as the planes of the Nationalist Air Force did not rain or have bad weather such as strong winds, they would basically take off during the day, and in addition to the reconnaissance planes that went north of the Yangtze River to carry out reconnaissance missions, there were also training fighters and bombers, although the Nanjing Air Force Base was located in the suburbs of Nanjing, and there was a long distance from the residential areas of NanjingBut the people in the city can often see the planes flying overhead, at first they still feel novel, and over time their curiosity will fade, after all, those planes will fly very high even if they pass over the residential areas of Nanjing, and the people on the ground can only see things like big kites, and they can't see clearly at all, and their necks are tired after looking up for a long time. Pen & Fun & Pavilion www.biquge.info

However, the people did not pay too much attention, but many soldiers of the National Army, especially the officers and a few soldiers who knew a little about the aircraft, looked up at the two Beiyang Army planes in the sky, and still saw the difference between the two planes at a glance, that is, the appearance of these two pigeon planes is different from the various aircraft equipped by the National Army, and among the planes of the National Army Air Force, no matter which model, whether it is a reconnaissance aircraft or a fighter or a bomber, they are all biplanes, and the wings are also very straight. However, the two pigeon planes overhead are now monoplanes, and the wings are very different.

At first, the officers thought that the Nationalist Air Force was equipped with a new type of aircraft, but after the two pigeon planes in the sky lowered their altitude in order to obtain more intuitive and detailed information, finally a Nationalist officer on the ground saw the five-colored star symbol painted on the fuselage of the plane with a telescope, and he looked horrified when he saw this symbol.

You must know that the Republic of China was established after the North-South peace talks, and the agreement used the five-color flag as the national flag and the five-color star as the national emblem, while the Beiyang Army, which is the Central Army, used the iron-blooded nineteen-star flag as the army weapon, the blue sky and white flag as the navy flag, and the five-color star for the cockade. However, the Nationalist Army uses the five-color star flag with a red background as the military flag, and also chooses the five-color star as the cockade, while the livery on the aircraft is the military flag paint, that is, the round five-color star with a red background. It can be said that the two armies are completely different except for the cap badge is the same five-color star, which is also the common habit of the warlord troops during the same period, basically all warlord troops are uniformly using the five-color star as the cockade, and the five-color flag is used as the main tone on the military flag, and it is distinguished from the Beiyang Army and the national flag after other designs.

All the planes of the Nationalist Air Force, including the trainer planes, are uniformly painted with a five-color star on a red background, and only a five-color star without a red background can never be an aircraft of the Nationalist Army.

After the major's face changed drastically, he quickly reported to his superiors by wired telephone, and the news soon spread to the first command, and several officers of the National Army quickly answered the phone from the air base in the suburbs.

In order to carry out communication between the armed forces more efficiently, Chen Jingyun not only vigorously imported wireless communication equipment and equipped unlimited telegraph to the regimental level, but also introduced wired telephones for real-time short-distance communication in important areas, which refer to Nanjing, Shanghai, Zhenjiang, and other important cities in southern Jiangsu. Wired telephones are not used for long-distance communication, but are limited to all important departments in the city and to important military institutions in the suburbs outside the city, such as the Generalissimo's Office, the headquarters of the First Army, the headquarters of the Second Division, the headquarters of various units in the suburbs, and the air bases in the suburbs. In order to arrange the communication of the limited telephone in Nanjing, Zhenjiang and Shanghai for the military, the price paid by the national army for this is also extremely expensive, all the equipment is imported, and even the installation is carried out under the guidance of foreign technicians.

At the same time, in order to reduce the cost of laying power grids and the pressure on people to purchase imported power equipment such as light bulbs and wires, Fule Electric has also jointly invested in several American-funded enterprises to build relevant factories in Fuzhou, Zhejiang and Shanghai Economic Development Zones to develop and produce wires, bulbs and even generator sets. As a result, Fule Electric has become one of the largest power supply and power peripheral equipment manufacturing enterprises in China, and other power companies in China are not even a fraction of Fule Electric.

At the same time, Fule Electric was instructed by Chen Jingyun to develop radio communication equipment very early, compared with the difficulties and powerlessness of the Southeast Iron and Steel Plant to imitate and develop many special materials, Fule Electric for the imitation production of radio and even power equipment is much simpler, even the wire insulation materials with strict requirements for the chemical industry are quickly put into production after the introduction of American technology, but limited to the scale of capital and equipment, the output is not large. After the introduction of relevant technical drawings of other power equipment, due to the lack of too many basic material constraints, a small-scale mass production was soon formed, and Fule Electric has even begun to imitate and build high-power generator sets for Fule Electric to build its own power grid.

Similarly, the imitation of radio communication equipment is also relatively smooth, after more than a year of research, finally succeeded in imitating a wireless telegraph in April this year, although the communication distance is worse than the imported German goods, and there are more faults, but finally came out, the cost is cheaper than the imported goods, Chen Jingyun immediately ordered the army to stop importing similar wireless telegraphs, and instead purchase Fule Electric products. On the one hand, the fertilizer does not flow into the fields of outsiders, on the other hand, it is more important to provide a certain profit to the communication department of Fule Electric, so that the communication department under Fule Electric can maintain the circulation of good surnames and continue to develop more advanced communication systems, rather than to continue to invest funds in Fule Electric Company, you must know that in order to develop and imitate this wireless telegraph, Fule Electric has invested as much as two or three hundred thousand research and development funds, if the national army does not purchase dozens of units, they will not even be able to collect the cost.

In view of the successful imitation of Fule Electric in wireless telegraphy, Chen Jingyun naturally handed over the imitation task of the wired telephone to them, in fact, China can not find a second company like Fule Electric to gather so many electromagnetic experts, there is no relevant expert talent, to imitate anything is just empty words. Of course, it will take some time for Fule Electric to develop and imitate the wired telephone system, so now the military wired telephone system deployed in the national army is still all imported, and it is a product of the German Siemens company, and this wired phone has an English name in China transliterated Chinese words: "Hotline!" ”

Of course, Chen Jingyun would not let himself use such an awkward name, and directly call it 'telephone', if Chen Jingyun wants to call it that, the national army naturally cannot disobey it, and over time, no one will say the transliteration word 'Hotline', and all of them will be replaced with 'telephone'.

Through these extremely primitive wired telephone communications, several staff officers of the First Army Headquarters quickly learned that although the Nanjing Air Base had sent planes out to reconnoiter today, the two D4 planes that had departed in the morning had already returned to their homes, and the two reconnaissance planes in the afternoon had not yet taken off.

Under these circumstances, the headquarters of the First Army quickly received telephone calls from the troops inside and outside the city, informing them of the necessary air defense preparations. Not only did they notify the Second Division of the First Army stationed in Nanjing, but they also notified the Guard Division to prepare for air defense operations, and directly ordered the air defense battalions in Nanjing to prepare for air defense operations.

The Nationalist Army's own air force has developed rapidly, and it also attaches great importance to the air defense of field troops and the air defense of important places, and based on the technical level of the Fuzhou Arsenal, it is unrealistic to specialize in air defense * an anti-aircraft machine gun, and there is no ability, the only option is to use the existing machine gun to modify the tripod and increase the firing range and elevation angle of the heavy machine gun as in the early stage of the development of the anti-aircraft machine gun, so that it can be fired at the air. To this end, the Fuzhou Arsenal used the existing MG08 heavy machine gun to develop an anti-aircraft tripod that was installed on the MG08 heavy machine gun to enable it to shoot in the air. The idea is the same as the Beiyang Army's attempt to transform the heavy machine gun for anti-aircraft shooting, the difference is that the Fuzhou Arsenal has stronger technical capabilities and can specially design an anti-aircraft tripod, while the Beiyang Army lacks similar capabilities, plus the Beiyang Army has deep feelings for the Madsen light machine gun of the National Army, and the aircraft of the National Army are generally slow and do not fly high during the war in southern Jiangsu, so the Madsen light machine gun is used as the main force of air defense, and the modification of the heavy machine gun is a temporary task of a small number of troops.

Due to the limited production of heavy machine guns, a large number of army infantry regiments are still waiting for heavy machine guns, so the number of MG08 machine guns that can be transformed into anti-aircraft shooting is also limited, and so far the national army is only equipped with a total of one air defense battalion, equipped with 18 heavy machine guns, equipped with Nanjing to serve as an air defense mission in an important area over Nanjing.

When Li Tunyang learned that a plane of the Beiyang Army had arrived in the sky over Nanjing, he immediately climbed up, and then immediately ordered a D5A fighter squad to take off urgently.

The four D5A fighters soon rose into the air one after another, quickly climbed and headed towards the sky over Nanjing, but a few minutes later, Huang Feihang, the leader of the fighter squad leading the team, saw two small black dots in the distant sky.

"Sure enough, it's a plane from the North Sea!" Huang Feihang looked at the two pigeon planes in the distance, and thought silently in his heart: It seems that the Beiyang Air Force has become an army and has arrived in Jiangbei, I, Huang Feihang, have been waiting for you for a long time, and today you will let me experience a real air battle!

Huang Feihang, who was thinking so in his heart, shook the fuselage, and then quickly pounced on the two Beiyang Air Force pigeon planes in the distance with the three D5A planes behind him!

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