. The working principle of the infrared thermal induction detector is mainly to detect the difference between the temperature and the background temperature. Among them, areas with low temperature show a blue light pattern; areas with high temperature show a red light pattern.
.
The five members of the punishment mercenary team wear full-coverage helmets and one-piece camouflage combat uniforms. This is actually to prevent body heat from dissipating into the air and being different from the surrounding ambient temperature, thereby being heated by infrared rays.
Induction detector found.
Following the fifth main combat team of the Devil Mercenary Group behind the Punishment Mercenary Team, they all also have anti-infrared thermal sensor detection combat suits, which can also avoid being discovered by armed helicopters in the sky.
However, whether they are members of the Devil Mercenary Group or members of the Punishment Mercenary Team, the iron guys riding under them do not have anti-infrared heat induction detection devices.
In order to obtain strong off-road performance, mountain cross-country motorcycles must have a powerful engine. Every powerful chemical energy engine, to put it bluntly, is an engine that uses fuel. They will definitely emit a lot of heat. Especially
It's the engine itself and the exhaust pipe.
The engine itself must be cooled down to maintain normal operation; the exhaust pipe discharges the high-temperature exhaust gases released by the internal combustion of the engine, which also causes the exhaust pipe to be extremely hot.
This heat becomes the target of armed helicopters tracking in the sky!
Shi Lei's voice came from the Bluetooth headsets of all the members of the Punishment Mercenary Team, "Abandon the off-road motorcycle immediately. More than a kilometer away from you, an armed helicopter is flying over. It should have detected the emission from the off-road motorcycle.
With so much heat, you only have fifteen seconds at most to escape!"
After receiving Shi Lei's message, all the members of the Punishment Mercenary Team stopped their off-road motorcycles without hesitation, and then abandoned the bikes and fled. If they wanted to race on mountain off-road motorcycles and armed helicopters in the dense forests of the mountains, it was completely impossible.
It's unrealistic. If they don't abandon the car, they have no chance of escaping. On the contrary, if they abandon the car and run away, there is still a slight chance.
Five seconds later, the members of the Devil Mercenary Group heard the propeller sound of the armed helicopter in the sky and made the same judgment as Shi Lei. They abandoned the mountain off-road motorcycles and did not continue to pursue Ye Feng.
It's to retreat to the back.
Dick, the fifth main combat team of the Devil Mercenary Group, is quite capable of judgment. He clearly knew that the armed helicopters in the sky had discovered the mountain off-road motorcycles on the ground. Once the people who were tracked by them in front also heard the sound of armed
If the helicopter propellers make noise, the people in front will definitely turn around and cause trouble for them. So they do not go in front, but choose to run back.
Unfortunately, no matter how good his judgment was, Dick could not have imagined that the Ye Feng they were tracking was not a South Vietnamese, but an enemy of South Vietnam.
Dick led the five members of the fifth main combat team of the Devil Mercenary Group and retreated to the rear in an attempt to avoid the search of the armed helicopters in the sky.
Ye Feng led the four members of the punishment mercenary team and ran quickly through the mountains. They no longer cared about whether there would be footprints left on the ground, and the enemy would follow these footprints.
Now is not the time to worry about these problems. Their most important goal at the moment is to stay far enough away from the mountain bikes to avoid being harmed by them.
"Boom boom boom~"
Behind the punishment mercenary team, three loud explosions were heard. They were armed helicopters in the sky, directly attacking the mountain off-road motorcycles of the devil mercenary team. The aviation machine gun happened to blow up three of them.
"Hidden, keep the movement prohibited!" Ye Feng informed other members in the Bluetooth headset network to minimize their activities and reduce heat generation to prevent heat from escaping.
However, something strange happened. The armed helicopter hovering in the sky did not directly attack the off-road motorcycles ridden by Ye Feng and others. Instead, it took the initiative to contact the command center. This was because the off-road motorcycles ridden by Ye Feng and the others came from
Located in a secret military warehouse on the border, it belongs to the real equipment of the South Vietnamese military, and a friend-or-foe identification code transmitter is installed inside.
"Call the command center, call the command center, and find five mountain off-road motorcycles. According to the identification code system, these five mountain off-road motorcycles come from the S035 border secret military warehouse. About one kilometer behind the five mountain off-road motorcycles, there are also
There are several other mountain off-road motorcycles, but these mountain off-road motorcycles do not belong to us. Now, please request the latest order from the command center." The pilot of the ACH-47 armed helicopter asked the control center for the processing order.
"HA004, please wait. The command center is checking the usage records of five motorcycles." The military network of the command center quickly found out the ownership of these five military mountain off-road motorcycles, as well as the signature list of the latest dispatch.
According to the record, the command center immediately contacted Captain Tao of the S035 secret border military warehouse, "Tao Dekai, rank of major, patrol leader of the S035 secret border military warehouse. Hello, this is the command center of the Northern Combat Command. May I ask, Major Tao, today Before you were attacked, you personally approved the deployment of five military mountain off-road motorcycles containing my country's identification code chips, so where are these five military mountain off-road motorcycles now and who is using them?"
Tao Dekai said with a little complacency in his tone: "Those five military mountain off-road motorcycles were handed over to Comrade Captain Ye of your Northern Operations Command! He has left the S035 border secret military warehouse with his team members."
"Major Tao, who is Captain Ye?" The staff in the command center always maintained a calm tone, as if they would never show any emotion.
"It's Captain Ye who delivered rice to our S035 today. He came here just after six o'clock this morning with five trucks full of rice." Tao Dekai explained in detail.
The staff at the Northern Operations Command command center finally changed their tone, "Major Tao, our Northern Operations Command did not send any personnel to the S035 border secret military warehouse today. Are you sure you asked Captain Ye about the secret code?"
It is true that the personnel stationed at the secret military warehouse on the border and the freight personnel cannot have any identification documents, but in order to ensure a smooth handover between the two parties, they will always get a code word every time they receive a mission. As long as they match the code word, that is
own people.
Cold sweat broke out on Tao Dekai's face, and he was frightened for a moment. He did not exchange code words with Ye Feng at all, and he did not get the corresponding code word prompts in the query system of the Northern Combat Command.
This means that Ye Feng is not a member of the Northern Operations Command at all, and the detailed information he inquired was not fed back by the Northern Operations Command at all. After all, the S035 base was attacked not long after Ye Feng arrived at the base.
Some are too strange.
"Major Tao, that Captain Ye is pretending to be a member of the Northern Operations Command, right?" asked the personnel at the command center of the Northern Operations Command.
Tao Dekai responded helplessly: "That's right! He is a fake officer! I have neglected my duty and I am willing to accept the punishment!" Tao Dekai knew that he was finished. The secret military warehouse on the S035 border was attacked, and he could not ignore it at all.
The command center got the accurate answer and immediately fed it back to the ACH-47 armed helicopter numbered HA004.
"HA004, please note that this is the command center, tracking the personnel using five of our mountain off-road motorcycles. Those five personnel pretended to be personnel from the Northern Combat Command and have been defined as enemies. The command center authorizes free fire!" Personnel in the command center
Order the armed helicopter.
The armed helicopter numbered HA004 immediately responded: "HA004 understands, the order has been received!"
…
Xiaguo, Shuangqing City, Jingyayuan.
Shi Lei had just cracked the Northern Operations Command's monitoring authority. He was monitoring various intelligence information from the command center in the Northern Operations Command's internal network.
All intelligence information will be judged once by Yizuer, who will screen and judge the information that matches the keywords set by Shi Lei. For example, Yizuer specially screened out the information about the fake person just now for Shi Lei.
Shi Lei checked the information filtered out by Yizuer. His face, which was a bit pale because of staying up late, became even paler. He contacted the five members of the Punishment Mercenary Team through a Bluetooth headset, "Please pay attention to the Punishment Mercenary Team.
You have been labeled as fake personnel by South Vietnam and have become the absolute enemies of South Vietnam."
"Boss, what direction should we take now to escape danger?" Ye Feng asked Shi Lei, hoping to get remote support from Shi Lei.
Unfortunately, Shi Lei is temporarily unable to provide remote support!
"A Feng, we are unable to provide map information for the time being. You use the compass to guide the way. Your final destination is Meishan Island. Once you arrive at Meishan Island, you will be safe!" Shi Lei said with a sense of regret.
Ye Feng did not express dissatisfaction or any other attitude. He just responded: "I understand, boss."
In the sky above the dense forest, the armed helicopter numbered HA004 called for support from other armed helicopters. If the five members of the mercenary team cannot leave the dangerous area of the secret military warehouse on the border for the time being, they may be really in danger!
The Punishment Mercenary Team was the sharpest knife in Shi Lei's hand. Shi Lei didn't want to lose the Punishment Mercenary Team, but the damn Devil Mercenary Team suddenly came and Shi Lei had no choice but to fight.
Two minutes later, three armed helicopters had gathered in the sky above the dense forest where the punishment mercenary team was located. Ye Feng looked at the fault in the dense forest not far away. He contacted Shi Lei and said: "Boss, we are currently in a desperate situation. The dense forest ahead appears.
The fault is broken and we cannot continue to isolate us from the threatening gaze from the sky. There are still trackers in the rear. The South Vietnamese paratroopers have joined the battle. They will arrive in fifteen minutes at the latest. Boss, what should we do now?"
(To be continued. Please search Piaotian Literature, the novel will be better and updated faster!)
