Red Soviet Union

The gloved hands started to sweat a little. As the speed increased, the temperature in the cockpit began to increase. When it reached Mach 3, the temperature in the cockpit would reach as high as 70 degrees. However, for Soviet pilots, this was A little difficulty is bearable.

The target distance is 300 kilometers, the height is 28,000, and the speed is Mach 3.2. The guide's voice continued to come from the headphones.

Three hundred kilometers seems to be a long distance. However, for an aircraft flying at Mach 3, it is only five minutes. If two aircraft flying at Mach 3 or so are flying opposite each other, the time is about two minutes.

There is only one chance for Andre's interception!

Radar is on!

At the nose of the steel fighter, the inverted Cassegrain antenna of the Sapphire-25 radar radiated a strong electromagnetic signal toward the airspace ahead. The peak power of 600 kilowatts instantly made Andre feel the cockpit. The lights of the instrument are dimmed.

The temperature in the cabin continued to rise, and most of the electricity consumed by the radar was converted into heat and transmitted into the cockpit. Backward tubes! Although it sounds powerful, in fact, many of them have become useless! Andre glanced at the radar screen. At this time, he had already rushed to an altitude of 28,000 kilometers. The orientation was correct, and the countdown had entered the interception.

When it was developed, the blackbird, which took radar stealth as an important indicator, formed a large ionized cloud due to high-speed flight and friction with the air, and the signal characteristics were quite obvious.

After more than ten seconds, a dark green bright spot appeared on the radar screen, and the target was found!

Single-pulse mode, locked!

The Sapphire-25 radar began to send out pulse signals one by one, hit the target, and then reflected back. At the same time, the electronic equipment of the MiG-25 began to solve the fire control elements and provided initial data for the radar-guided R-40R missile. .

The Doppler method is used to filter the reflected clutter on the ground, and now at high altitudes, a single pulse is the best choice.

This seems to be a long process. The fire control system of all electron tubes, although there is also an on-board computer, is actually the analog computing circuit of the electron tube. If there is an Intel 8086 chip, it will be solved in less than a second. .

The distance between the two parties was rapidly approaching, and finally, at a distance of forty kilometers, a familiar voice came from the earphones.

Complete the lock, request to launch. Andre's hand was on the red button, and the last step is now, and there must be an order from the ground before the missile can be launched.

Fire! The command from the ground was short and direct.

Fire! Andre's hand pressed the launch button hard.

Under the wings, the flames flickered, and four huge R-40 missiles, two infrared types and two radar types, left the pylon in turn.

At this time, the distance between the two sides has been shortened to twenty kilometers!

The R-40 missile is specially provided for the MiG-25. In order to be able to launch at Mach 3, the missile has been improved a lot. The infrared seeker uses a larger amount of liquid nitrogen for cooling, and the missile body has also been Special heat treatment protection.

The infrared type can directly track the heat source. The radar type requires the radar illumination of the carrier aircraft to provide signals. If the two are used in combination, if the four missiles cannot fly, I don’t believe that this black bird can’t be beaten!

However, just two seconds after the missile flew out, Andre saw a red light flashing on the dashboard of the cockpit.

Oops, the radar is overheating!

The 600-kilowatt radar has been working at peak value, searching, discovering, locking, and providing the illumination required by the semi-active radar. Most of the power is converted into heat, causing the temperature of the nose to rise rapidly. In order to cope with this In some cases, Mikoyan engineers had to use Freon to cool the front radar equipment bay.

But now, the radar system is still overheating due to prolonged use! Andrei's hand flipped the switch,

Power down for the radar, unfortunately, just flip a switch and the image on the radar screen disappears.

Radar malfunction!

Without radar exposure, the two radar-guided R-40R missiles turned into uncontrolled rockets, drawing a graceful arc in the air and flying over a few hundred meters away from the SR-71. Then explode.

When the radar malfunctioned, Andre knew that the R-40R attack failed, and what would happen to the two infrared-guided R-40T attacks?

Now the two sides are still flying head-to-head, and there is only one chance for Andre to intercept! Andre knows that in history, the SR-71 has never been shot down, that is, the two missiles of the MiG-25 are definitely not good!

How to do? The interception window is only such a short time. If the other party is flying over, then Andre will control the plane to turn a corner in the air, and then chase after it, and he will definitely not be able to catch up! Mach 3.2 is already the top speed of the MiG-25, while the SR-71 can fly up to Mach 3.5 or more!

Damn, if only there were cannons! This huge interceptor, the MiG-25, intercepts only four R-40 missiles! Now, after launching these missiles, Andre has no other means of interception.

The two R-40Ts were still flying. Since the infrared seeker in front was circular, the flight resistance was greatly increased. After being launched from the carrier, it fell behind the R-40R missile.

The missile with the infrared seeker in this era only has the ability of tail pursuit attack. However, because the Blackbird is flying at a speed of Mach 3, the aerodynamic resistance friction generates a high temperature of several hundred degrees, and this missile can also be used head-on. Lock on the target during the attack.

The R-40T continued to fly forward. The huge heat source in front was accurately captured by the seeker. The circuit of the electronic tube transmitted the signal to control the rear rudder surface. After superimposing the speed of the carrier aircraft, the speed of the missile increased to Mach 5, facing the oncoming black bird of Mach 3, bravely charged up!

At a relative speed of Mach 8, you can fly three kilometers in one second! A distance of twenty kilometers is six or seven seconds!

MiG-25! Missiles have been launched! Almost at the same time, the reconnaissance system officer in the back seat looked at the screen in front of him and shouted to the pilot in the front cabin.

Lieutenant Colonel Olmsted said calmly: Don't worry, those missiles won't hit us.

Lieutenant Colonel Olmsted pushed the lever to steer with his right hand, and pulled the throttle lever to the end with his left hand, allowing the Blackbird to steer in a sprint at extreme speed.

To fly!

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