32 days

At [-] o'clock in the morning, Yi Alan and Zhou Yan'an boarded a small jet that flew directly to the R&D center. Several team leaders and deputy team leaders were there. They obviously hadn't slept all night, and their faces were tired and heavy.

Luo Caiyun had already communicated with the R&D center. It looked like it was just a normal morning there, but in fact it was secretly on high alert, and no one could leave or send news to the outside world.The anti-espionage section of the security department quickly formed a team in the middle of the night, intending to conduct a thorough investigation of the R&D center.

The news of Cheng Siyuan's sudden death was temporarily concealed, and the correspondents who were suspected by Yan Fei were also under soft control, and other staff members were also required to stay in the R&D room and not move around unless necessary.

On the plane, Yan Fei said: "There are a total of six communicators in the R&D center. They work in groups of two and two. Spies are communicators, and the effective information that can be transmitted is also very limited, perhaps this is also the reason why the research and development center, which has always paid attention to information protection, has not been able to detect the influx of spies."

He held a stack of documents in his hand, which contained the details of the six correspondents.The anti-espionage department is conducting an investigation on the financial situation of these six people and their close friends in recent years, and the specific information will be sent to Yan Fei's portable computer later.However, as far as the current information is concerned, these six people are carefully selected professionals who have no political problems and are considered trustworthy. No matter which one of them betrays, it is a pity.

Luo Caiyun flattened the seat, closed her eyes and took a short rest.She didn't seem to hear Yan Fei's words, but she frowned deeply.

Yi Alan came to the R&D center on the edge of Qingyun Mountains again.

The main building of the R&D center is half above ground and half underground, and extends into the hollowed-out mountain.Even half of the airport is obliquely inserted into the ground, and the assembled fighter jets will slide out of the hangar of the underground airport and fly into the sky only when they are about to test flight.If there are spy satellites from other countries scanning it, they may think that this is just an ordinary air force base.

They were greeted by Song Rui, Chief Engineer of the R&D Center, who was in his 60s and had a lot of gray hair, but still looked strong and strong with piercing eyes.He didn't say much, and after shaking hands with everyone politely, he took them to the lobby, went down the elevator to the bottom of the underground space, and then walked through the complicated corridors to a hidden room.

Cheng Siyuan's body was parked here.

"Is it him?" Song Rui asked.

Yi Alan was the only one who really saw the source of process thinking.Yi Alan stepped forward and looked down. His face was clean. His years of service in the army had engraved determination on his young face. However, the cruel reality of being dead for five hours had cast a layer on his face. Uncomfortable gray gas.

"It's him." Yi Alan bowed his head and retreated.

"He is a very good pilot." Song Rui lamented heavily, not hiding his pain and regret.Then, he led everyone through the corridor that was being closely monitored by cameras, and at the same time asked Zhou Yan'an to recount the battle between him and Cheng Siyuan on the 32nd.

After Zhou Yan'an finished explaining everything in detail, they just arrived at the underground hangar of the R&D center.

Song Rui swiped his card to enter, and several new fighter jets with refined shapes rushed into his eyes. When the lights bathed his body, his arrogance was revealed.Yi Alan and Zhou Yan'an are both familiar with a gray fighter plane in the center. It is crawling quietly, and its heroic posture soaring in the air has already emerged in people's minds.

Song Rui stood in front of this fighter jet and looked up at its carefully designed lines. Looking closely, he could find that the surface of the fighter jet was uneven like sand. hidden function.

Although Zhou Yan'an had repeatedly described in detail the new fighter on the 32nd, Song Rui still asked, "Is this the one that Cheng Siyuan flew on the 32nd?"

Zhou Yanan said affirmatively, "Yes."

Song Rui nodded and said after a while: "This fighter is called 'Houyi', and it is the first generation of a new series of fighters that have been placed with high expectations. The information isolation in our R&D center is also very good. A project team is very good. It is difficult to know the research and development content and process of other project teams, but some contents cannot be avoided, and "Houyi" is one of them. Many people in the center know that this new fighter jet that will be put into mass production is the most important thing in our research and development center. Perfection is also the best fighter."

Song Rui turned to look at Zhou Yan'an: "But apart from the R&D personnel and its test pilots, few people know that 'Houyi' is actually a BVR fighter."

Yi Alan stood side by side on Zhou Yan'an's left side, so he didn't see Zhou Yan'an's expression, but he felt Zhou Yan'an's vibration, and also saw the subtle expressions of Luo Caiyun and Yan Fei.

Yi Alan didn't understand what happened, Song Rui seemed to see his confusion and continued.

"Beyond visual range fighters, as the name suggests, launch attacks outside the limit of the air vision. 'Houyi' is similar to other beyond visual range fighters. Although it is equipped with certain close-quarters combat capabilities, it is definitely far inferior to other good or balanced close-quarters fighters. Combat fighters, such as the Swift 10. In terms of beyond visual range combat, because the missiles above the medium range have a low hit rate and are easy to interfere, it also requires the all-round cooperation of reconnaissance aircraft, ground radar stations, and satellites to exert its full potential. Amazing fighting power."

The lack of a large number of ground personnel on the 32nd resulted in the inability of reconnaissance planes, radars, satellites, etc. to assist BVR fighters, which is equivalent to cutting off the wings of "Hou Yi".It can be said that the "Houyi" on the 32nd is a bit tasteless compared to other fighters in the R&D center.

As a test pilot, Cheng Siyuan must be very clear about this.However, that mysterious partner is not necessarily the case.

In his opinion, Cheng Siyuan drove out the best fighter plane in the R&D center, and he didn't respond negatively or want to release water. Being shot down might just be inferior to others.

Song Rui pointed to another medium-sized fighter not far away: "That one is good at close combat. If Cheng Siyuan is flying it, even if it is not perfect, it is a two-seater fighter operated by a non-professional pilot alone. Swift 10 is still not worth mentioning in front of him."

Cheng Siyuan was going to die.

Yi Alan understood Song Rui's pain and regret just now, Cheng Siyuan is indeed a very good pilot.He was extremely noble and defended the dignity of himself and the country at the cost of his life.

Yi Alan couldn't help but look at Zhou Yan'an, but Zhou Yan'an looked at the fighter jet, intentionally or unintentionally, walked under its wide wings, and let the shadow cover him.He stood still like a sculpture, but like a thin flag, he was swept by the strong wind in the endless void.

Yi Alan felt her heart stabbed.

While everyone mourns for Cheng Siyuan, the possibility of Cheng Siyuan lying can also be completely ruled out.There must be an insider lurking in the R&D center.

Yan Fei's professionalism made him wake up from his helplessness quickly. He walked around "Houyi" and looked at each component carefully.General over-the-horizon fighters are heavy fighters with heavy payloads.However, "Hou Yi" can be considered medium-sized in appearance. Since its powerful radar takes up most of the load, the weapons it can carry are very limited, and it is not suitable for protracted warfare.Therefore, the main advantage of 'Houyi' lies in the flexibility of starting and taking off. Just like its name Houyi Shooting the Sun, it can quickly find an opportunity to kill with one blow before the enemy reacts.

Its small appearance is confusing, and Zhou Yanan is not a professional pilot, so he did not distinguish the nature of "Houyi" at that time.

Apparently, the mysterious person did not see the difference in the 32nd day.

After thinking about it, Yan Fei was a little puzzled: "Although many people don't know that 'Houyi' is a beyond-visual-range fighter, if someone who has studied fighter jets observes it closely, he can still see it from the details of the wings, tail and engines. I can see the clues. Does this mean that the ghost who didn't see it actually doesn't know much about fighter jets."

Song Rui nodded: "You can say that."

Yan Fei said: "That's the problem. If he is a spy inserted or instigated by another country, he is obviously in the Air Force Weapons Research Center. If he wants to obtain information, why not cultivate his quality in this area? Call a special It is not an ordinary difficulty for laymen to obtain technical information."

Lu Liangjun said: "Then he is not a specially trained spy, maybe he became rebellious after he appeared on the 32nd."

"There is another possibility." Yan Fei looked at Song Rui and Luo Caiyun, "The spy did not come for the Air Force weapons, but for Plan S. His professionalism is not in Air Force weapons, but in the content of Plan S."

"What is Plan S?" Lu Liangjun was very confused.

But both Song Rui and Luo Caiyun agreed with it.

"Actually, I'm not very clear about Plan S." Yan Fei spread his hands, "This is an independent and highly confidential plan. As the deputy minister of intelligence, I only had the authority to know the existence of this plan."

Luo Caiyun said: "If that person really came for Project S, it can just explain why he found Zhou Yan'an's fighter plane approaching, why he chose to let Cheng Siyuan stop Zhou Yan'an instead of fleeing as soon as possible. He has not yet received information about Project S , so we must stay in the R&D center, we cannot allow the R&D center to be destroyed within 32 days."

Lu Liangjun said: "Then, should we learn about Plan S now so that we can catch that spy?"

Luo Caiyun was noncommittal: "If it really involves Plan S, the less people involved, the better."

Song Rui murmured: "In this case, the deputy team members should go to rest first. Team leader Luo and I will take these two children to see Project S." He pointed at Yi Alan and Zhou Yan'an.

Yan Fei and Chen Ruming have no dissatisfaction, they are used to various forms of secrecy plans.

When leaving, Lu Liangjun suddenly reminded: "If the 32nd is a scam and the goal is Plan S, then they will soon achieve their goal."

Song Rui showed a mysterious smile: "I have my own opinion."

Yi Alan didn't say a word from the beginning to the end. He understood that after entering the affairs team, he would definitely know what he should know, and it's best not to be curious about what he shouldn't know.In fact, at this moment, he cared more about Zhou Yanan than the mysterious Project S that he had never heard of when he came to the R&D center to study network cracking last time.

When he set his eyes on Zhou Yan'an again, Zhou Yan'an seemed to have returned to his usual state, calm, peaceful, and ready to face more difficult challenges at any time.