Babylonian Empire

Page 432

And when the water pressure formed by the explosion hit the bottom of the ship with great pressure, the Stonebow-class missile boat was completely tragic.

In order to obtain the maximum sailing speed, and because there were very few missiles in stock, this missile boat did not carry bulky anti-ship missiles, which reduced the weight. Moreover, it is now sailing at the highest speed, so the sailing is a bit fluttering , This is nothing at all, but when the water pressure came, it happened to be directly in front of the hull that attacked first, and at this time, the bow of the ship was already a little upturned when it was sailing at high speed.

When they heard the underwater explosion, all the personnel turned pale immediately, that sound was a mine!

Where did this mine come from?It seems that our side has never planted mines in this sea area!

Then, they heard the sound of a huge shock wave hitting the bottom of the ship, and the bow of the ship began to rise involuntarily.

A missile boat of more than 200 tons is not very stable when sailing at high speed, and it is easy to capsize under high sea conditions. Now, it is the most dangerous situation.

Ali heard the sound and knew that in this case, there were only two possibilities. One was that the hull was not strong enough and broke in the middle and split into two halves.

No matter what, it is very dangerous to continue to stay here.

Just as the hull began to turn over involuntarily under the powerful impact of the explosion, Ali tried to maintain his balance and grabbed the handle of the hatch.

The mine exploded too soon. If the missile boat was not sailing at high speed, a big hole would be blown in the bottom of the boat. But now, because the hull is light and the speed is too high, the hull actually capsized by itself!

When the hull hit the water again, Ali felt that all the glass was shattered, and then the sea water rushed in.

The boat capsized.

Moreover, two large holes were blasted into the bottom of the boat, and the hull began to flood with water. It would not last long before sinking to the bottom of the sea.

In this kind of dark night, even though he was only less than ten nautical miles away from the port, it was very difficult to swim back. If he misunderstood the direction, he would die at the bottom of the sea due to exhaustion.

Ali knew that there was no other way, they had to swim back on their own.

A question is still lingering in his mind: where did this mine come from?

Chapter 4 Eighty

over the North Atlantic.

A large plane with a strange shape is sailing north of the peninsula of England.

Except for the four engines at the root of the wings, this aircraft has no similarities with its original parent aircraft: the "Comet" 4C airliner.

After World War II, the United Kingdom took the lead in developing civilian jet airliners and developed the Comet Airliner. In 1952, when the Comet Airliner was put into operation and became the world's first commercial jetliner on scheduled flights, its technology and business were relatively successful. At this time, the Boeing 707 on the other side of the ocean had not yet started test flights.

As a mature airliner, the airframe has also begun to be refitted. The first refit is the anti-submarine hunting aircraft. The main thing is to install a magnetic detector on the long tail beam at the rear of the tail, install a search radar on the nose, and install a vertical tail. The antenna for the electronic support system is installed on it.The newly designed non-pressurized belly weapon compartment and system compartment have become an obvious difference from the Comet airliner. The cross section of the fuselage is no longer circular, but an obvious double bubble type. The front end of the cabin is equipped with a search radar. The nose of the airliner is bigger.Moreover, the vertical tail area, cockpit windshield, and windows have all been enlarged.

Moreover, compared to airliners, "Hunter" uses Rolls?Royce's "Spey" engine has reduced fuel consumption and increased range. Moreover, when the load is light, it is also possible to turn off two engines and leave only two engines working to increase battery life. time.

The improvement of Liemi was very successful, but the current aircraft is much uglier than Liemi. At the nose and tail of the aircraft, there are large pointed bags, which are installed in it. Marconi?Elliott Avionics Systems' new type of early warning radar, this strange-looking aircraft is the AEW.MK3 early warning aircraft that British Aerospace Corporation is experimenting with!

As the first country to develop radar, the United Kingdom naturally does its part in air warning. There have been several airborne warning projects, such as the old "Gannet" and "Shackleton" maritime patrol aircraft. The E-3 pre-warning machine has entered the era of active service, and the British found that if they stopped catching up, they would be left far behind.

However, the British are no longer an empire that never falls. After World War II, the UK has been severely damaged. Moreover, the discontinuation of the TSR-2 project has caused a serious loss of British technical personnel. The way of holding the big plate on the back is beyond my own technical strength.

Therefore, the British talents came up with the use of two radars, arranged in the front and rear of the aircraft, to provide 360-degree scanning to realize their own early warning project.

However, the military doesn't care about these, and the technical indicators proposed make the researchers go crazy.

It can not only effectively detect targets at sea, but also track low-altitude targets on land at a long distance, and maintain 400 tracking tracks at the same time. Its performance is even more advanced than that of E-3!

"Attention, the radar is turned on and ready to enter the scheduled airspace for testing." In the pressurized cabin in the middle of the pre-warning aircraft, the project leader, John of British Aerospace Corporation, said.

Although this kind of large passenger plane is very spacious when arranging passengers, after a large amount of equipment is added to the pre-warning machine, even the arrangement of the radar operation station is tense. On the side of the necessary aisle, five large The monitors are displaying data, plus two air combat commanders and two equipment maintenance personnel, it is already full.

In the back, in the small space, there are not even enough beds to accommodate the personnel who change shifts, so they can only sleep on three floors of hot bunks like the Navy.

But now, the pressurized cabin is full of engineers for the pre-warning aircraft project. (Actually, this kind of experiment is dangerous to a certain extent. Ah San once developed an early warning machine by himself, but it crashed, killing all the electronic experts above, and the early warning machine project was terminated.)

Following John's words, several operators began to flip the switches on the console in order, a row of indicator lights lit up one by one, the waveguide and other components of the radar were charged and preheated, and the GEC4080M electronic computer started to start, ready to carry out all-out operations. Calculating the data flooding in like a flood.

Finally, an engineer on the main console pushed the operating lever up.

Immediately, the two large S-band pulse Doppler radars in the front and rear radomes of the early warning aircraft began to send out powerful electronic signals, the gimbal at the bottom of the radars began to rotate, and the radars officially started working!

The radio waves passed through the radome and shot towards the surrounding airspace.

At the same time, the screen on the control console began to display light spots, which were several targets in the air and ships on the sea.

"The radar is working fine."

"Data tracking is normal."

"The computer is working fine."

Reports popped out of the mouths of the operating engineers one by one. John knew that the current normality was only temporary.

"continue following."

The plane headed east and continued flying over England.

Entering the sky above the land, there are more targets on the radar screen immediately. The early warning plane scans the sea surface, and is less affected by clutter, but when it reaches the sky above the ground, the clutter suddenly increases.

The GEC4080M electronic computer feels that the data that needs to be processed has increased significantly. The pulse Doppler radar uses the different radial speeds of the target and the interferer relative to the radar, and the echo signals also have different Doppler frequencies.The Doppler frequency spectral line of the target can be selected by the method of frequency domain filtering, and the spectral line of the interference clutter can be filtered out, so that the radar can separate and detect the target signal from the strong clutter.

The larger the area detected by the radar and the more complex the terrain on the ground, the more echo signals need to be processed.In particular, even the signals of many fast-moving cars on the ground were not filtered out, and the data began to increase alarmingly.

The British government proposed to establish 1 stable tracking trajectories, but this kind of computer has only 1.4M memory, even after expansion, it can only add [-]M externally.

The GEC4080M electronic computer started working at full capacity.

"The amount of data has increased dramatically."

"Two hundred trajectories have been tracked."

"The computer is already working at full speed."

"Data overload, [-] traces that have been established have been lost."

"The system has begun to overheat..."

Hearing the latter one, John showed disappointment on his face, and the nightmare started again. Although the measures were improved, these problems were still not ruled out.

The platform of Liemi is at most [-] tons, and after so many electronic devices are stuffed, how to deal with the problem of heat dissipation makes engineers scratch their heads.

Now, fuel is often used for heat dissipation. The fuel circulates in the body, which is equivalent to the refrigerant of the air conditioner, absorbing the heat released by the mission electronic system and radar when it is working at full capacity, and dissipating it outside the body.To ensure full normal operation, the airborne fuel tank must be kept at least 50% full. However, as the flight progresses, the fuel in the aircraft will gradually be consumed, and now the electronic system is working at full speed. The problem of heat dissipation, became more severe.

(This heat dissipation method is the most common. For example, the Concorde supersonic airliner, due to its high speed, the temperature caused by friction with the air will be higher, which is to use the way of fuel circulation to take away heat. The modern F-35B also Faced with similar thermal management difficulties, due to the increase in the weight of the aircraft, the fuel reserve during vertical landing is forced to decrease, resulting in insufficient oil in the fuel system to absorb the waste heat released by the electronic system. If the ambient temperature is high, the electronic system of the aircraft will not work properly. Work.)

John shook his head, and began to repeat the process. In fact, if the technology required by the Air Force is not so strict, as long as the computer does not process so much data, for example, for targets that are too slow, all of them will be filtered out as clutter. Then, the electronic system will not process so much data, and it will not be overloaded, causing a surge in heat.

However, this is impossible. If the Air Force wants to make the performance of the hunter surpass the E-3, it is too overestimating its own research and development capabilities.