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On the ground, while the special operations assault team was infiltrating the air defense camp, the passenger plane of the visiting group in the sky had already left Hanoi and passed over Halong Bay as originally planned, preparing to enter the sky over the waters of the Beibu Gulf. But the hustle and bustle in the airliner was not a normal flight situation, because all the crew members, including the pilot, gathered in the cabin and helped each other to put on the parachuting equipment.

This is a complete set of skydiving equipment including goggles, helmets, breathing masks, cold suits, portable oxygen cylinders and paragliding bags, but it seems to be a foolish preparation, but in fact it is full of crises, which is why Xiao Dong and others, who know this plan, are very opposed to the second leader taking the risk personally, because skydiving, especially high-altitude skydiving above 7000 meters, is too dangerous.

Skydiving above 7000 meters is different from low-to-medium skydiving, the temperature is very low at this altitude, the air is thin, and you must use oxygen equipment and cold-resistant clothing to jump out of the plane, otherwise you will lose consciousness due to cold and lack of oxygen during the fall, but these obstacles can also be compensated by equipment, but there is also a danger in skydiving, that is, for untrained people it is a deadly threat of translation.

The so-called horizontal rotation means that in a low-pressure environment, the body will rotate on a horizontal plane, just like the stall spiral of an airplane, if this rotation cannot be controlled, then the body's blood will rush to the limbs and brain because of this rotation, which is very likely to cause temporary blindness due to congestion of the eyes. Worse still, too much blood is rushed into the brain, resulting in high intracranial blood pressure, which eventually leads to cerebral hemorrhage and intracerebral coagulation, which can make people unconscious, and what are the consequences of a person who is unconscious in the air. That, of course, is self-evident.

There are many factors that can endanger the lives of skydivers, such as falling too fast, such as finishing the parachute or too early, etc., which will directly endanger the lives of skydivers, even if they are highly trained professional skydivers. It is also impossible to avoid the dangerous approach when skydiving, not to mention that it is the second chief who is going to skydive now, an elderly man who is not physically strong.

What made Xiao Dong and other guards who were specifically responsible for protecting the safety of the chief feel suffocated was that in addition to jumping from a height of nearly 10,000 meters, this high-altitude parachuting mission also required a low-altitude parachute in order to avoid radar irradiation. Originally, Xiao Dong's mission was to protect the safety of the No. 2 leader, but now they can only watch the No. 2 leader take risks, and they themselves still have to participate in one of them. It's weird if you don't hold back the fire and want to explode.

"Seven minutes left, perform the final check." Xiao Dong glanced at his watch, which was done in advance. Because of the fear that the communication will be intercepted by other countries or forces, there will be no direct contact between the air and ground mission to ensure that the mission will not fail due to the leakage of information.

In the airliner, in order to avoid suspicion as much as possible, the crew members returned to the cockpit after putting on their equipment, and the others also used ropes to secure themselves. Get ready for the onslaught to come, because all know it. On the ground, an anti-aircraft missile will soon rise into the air, and then blow up the plane it was flying in to pieces, and among the seventeen people in the passenger plane, except for the second leader, Xia Yu. Xiao Dong and the other three escorts can jump out of the plane before the missile attack, and everyone else must accept the missile attack before they can fall down with the shattered fuselage, which is really fighting with God with their own lives, and how many people can survive in the end. No one can guarantee it, but it must be mentioned that everyone involved in this task is voluntary, and no one is forced.

"Five minutes countdown, chief, please hurry down to the cargo hold and get ready." In order to avoid his voice being recorded by the cockpit recording, the co-pilot specially ran to the cabin and said to the second chief, and then the co-pilot opened the door to the cargo hold on the floor of the aircraft galley.

Xiao Dong took the lead down the ladder to the cargo hold, and then waited below, and when the second chief came to the cabin door, he suddenly patted the co-pilot on the shoulder, and looked at the co-pilot but didn't say anything.

As if he could understand the meaning of the second leader, the co-pilot did not speak, but stood up straight silently, and then saluted the No. 2 leader, without any hesitation in his eyes, full of perseverance, and then the co-pilot watched the No. 2 leader climb down the escalator.

Followed by Xia Yu, who already knew the specific mission content, naturally understood what it meant for a passenger plane flying in the air to be hit by an anti-aircraft missile, and it would not be an exaggeration to say that there was no life, even if each of them was ready to parachute.

stepped forward and gave the co-pilot a hug, then took two steps back, Xia Yu raised his right hand and pointed into a palm, his fingertips aimed at his temple, and saluted the co-pilot very solemnly, and then Xia Yu shook his upper body from side to side, and gave his respect to the other crew standing next to him and the captain who couldn't see it at all. The co-pilot returned the salute, and the others also nodded their heads, and then Xia Yu reflexively climbed down the escalator and entered the cargo hold.

After the six people entered the cargo hold together and locked the hatch, the pilot began to gently pull out the circuit breaker that detected the cabin pressure and the cargo door as planned, and then began to depressurize the cargo hold. This large passenger aircraft originally did not have the ability to increase and decompress locally, even after this special modification, but the overall structure still can not withstand the pressure after depressurizing the cargo compartment alone, so the time control must be extremely accurate, otherwise the decompression time is too long, it is very likely to cause the partition between the cabin and the cargo compartment to rupture, so that the aircraft as a whole explosive loss of pressure.

Everything is going very smoothly as planned, when the cargo compartment is depressurized, Xia Yu and Xiao Dong manually opened the door of the cargo hold, at the moment when the hatch was opened, a violent air flow crashed in, Xiao Dong, who was hedging against the air flow, did not even stand, was blown to the floor by the air flow, and rolled several times in a row before stopping, and the plane that was suddenly impacted also trembled several times as a whole, before it began to adapt to the impact of this air flow on the aircraft.

"Two minutes to go." In the whirring wind, Xiao Dong raised two fingers to indicate the countdown, Xia Yu also immediately confirmed the time on his wrist, and then also raised two fingers, nodding to the second chief and the other three to confirm, after that, Xia Yu looked out through the cargo door, there were no clouds in the sky, even if he looked down at an altitude of nearly 10,000 meters, he could still clearly see the green mountains on the ground, the winding rivers, and the endless blue ocean.

The plane has already flown out of land and into the ocean, and if nothing happens, it will be out of Vietnam's territorial waters and into the airspace of the Gulf of Tonkin in a matter of minutes. But that wasn't what Chief Two wanted, even though it was safer for him personally. Whether the ground forces will be able to complete the most important part of the mission plan, the second commander is not sure, so he can only keep looking at the sea outside the cargo door that is in line with the sky, quietly waiting for the final result.

In the end, the expectations of the No. 2 leader were not disappointed, because when the passenger plane flew over Halong Bay, the radar station in the air defense camp had intercepted the identity information sent by the passenger plane's transponder, and the special operations soldiers who had been sitting in front of the radar screen immediately transmitted the news to the missile launch command room, and the missile launch command center, which had also been controlled by the special forces soldiers, turned on the host radar as soon as possible, locked the passenger plane, and then when their countdown was over, A special forces soldier in the command and control center pressed the red missile launch button.

"Boom-" A SAM 3 with a length of nearly 6 meters successfully ignited and detached from the twin launchers, the tail of the solid rocket thruster sprayed a large amount of smoke, and the powerful thruster pushed the missile body into the sky at a very fast speed, and the deafening sound of rocket launch resounded throughout the camp.

"Woo-" The sudden rise of the anti-aircraft missile immediately caused a commotion in the entire base, the piercing air defense siren sounded, and the person in charge of the base, who did not understand what was happening, picked up the radio and asked a communication question, but what responded to him was the continuous unknown explosions in the entire base, as if war was coming in an instant, and the cries and explosions of soldiers were everywhere.

What happened in the barracks was only visible to the naked eye at an altitude of nearly 10,000 meters, although fireballs were constantly erupting there, but if you knew in advance that there would be missiles in a certain area, with Xia Yu's sharp eyes, of course, you could notice the abnormal situation. Therefore, Xia Yu, who was standing in the cargo door and looking at the ground, was paying attention to the movement of the ground while looking at the countdown of the electronic watch on his wrist.

"Missile lift-off!!" Xia Yu shouted, but the whirring wind completely muffled Xia Yu's voice, but the others also understood what Xia Yu meant, because Xia Yu kept waving his left hand while speaking, signaling to jump quickly.

Without hesitation, the No. 2 leader tightened his mask after seeing Xia Yu signaling that he could jump out, rushed to the cargo door in two or three steps, and jumped out of the plane with a natural jump forward. (To be continued......)