The gloved hands began to sweat a little, and as the speed increased, the temperature in the cockpit began to increase, and when it reached Mach 3, the temperature in the cockpit would reach 70 degrees, but for the Soviet pilots, this difficulty was bearable. Pen % fun % Pavilion www.biquge.info

"The target is at a distance of 300 kilometers, an altitude of 20,000, and a speed of Mach 3.2." The voice of the guide continued to be heard in the headphones.

Three hundred kilometers may seem like a long distance, but for an aircraft flying at Mach 3, it is only five minutes, while two planes flying at about Mach 3 are about two minutes.

There is only one chance left for Andrei to intercept!

Radar power on!

At the nose of the steel fighter, the inverted Cassegrain antenna of the Sapphire-25 radar radiated a strong electromagnetic signal towards the airspace ahead, with a peak power of 600 kilowatts, which instantly made Andrei feel that the lights of the instruments in the cockpit were dimmed.

The temperature in the cabin continues to rise, and most of the electrical energy consumed by the radar is converted into heat and transmitted to the cockpit. Backward tubes! Although it sounds powerful, a lot of it has become useless! Andre glanced at the radar screen, and at this time he had already rushed to an altitude of 28,000 meters, the direction was correct, and the interception had entered the countdown.

At the time of development, the blackbird, which regarded radar stealth as an important indicator, formed a large ionization cloud because of the friction between high-speed flight and air, and the signal characteristics were quite obvious.

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

Single Pulse Mode, Locked!

At the same time, the electronic equipment of the MiG-25 began to calculate the fire control elements and provide 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 altitude, a single pulse is the best choice.

This seems to be a long process, the all-tube fire control system, although it also has an on-board computer, is actually the analog operation circuit of the tube, if there is an Intel 8086 chip, I am afraid it will be solved in less than a second.

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

"Complete locking, request launch." Andrei's hand was on the red button, and now he was one last step away, and there must be a command from the ground to be able to launch the missile.

"Fire!" The command on the ground was short and direct.

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

Under the wings, the fire flickered, and four huge R-40 missiles, two infrared, two radar, in turn, left the pylons.

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

The R-40 missile was specially provided for the MiG-25, and in order to be able to launch at Mach three, the missile has made many improvements, the infrared-type seeker uses a larger amount of liquid nitrogen for cooling, and the missile body has also been specially heat-protected.

The infrared type can directly track the heat source, and the radar type needs the radar irradiation of the carrier aircraft to provide a signal, and the two are combined, and the four missiles can't fly, so I don't believe that this blackbird can't be beaten!

However, just two seconds after the missile flew out, Andrei saw a red light start flashing on the cockpit's dashboard.

Oops, the radar is overheating!

The six-hundred-kilowatt radar has been working at its peak, searching, finding, locking, providing the irradiation needed for the semi-active radar, and most of the power is converted into heat, which causes the temperature of the nose to rise rapidly, and in order to cope with this, Mikoyan's engineers had to use freon to cool the radar equipment compartment in front.

But now, due to the long period of use, the radar system is still overheating! Andrei's hand flicked the switch to reduce the power of the radar, but unfortunately, as soon as he flicked a switch, the image on the radar screen disappeared.

Radar malfunction!

Without radar irradiation, the two radar-guided R-40R missiles, turned into uncontrolled rockets, drew a graceful arc in the air, flew at a distance of several hundred meters from the SR-71, and then blew themselves up.

At the moment when the radar failed, Andrey knew that the R-40R attack failed, and what about the attack with two infrared-guided R-40T?

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

What to do? The interception window is only such a short time, if it is flown by the other party, then Andre will operate the plane to turn a corner in the air, and then chase again, and he will definitely not be able to catch up! Mach 3.2 is already the top speed of the MiG-25, and the SR-71 can fly up to Mach 3.5 or more!

Damn, it would be nice if there were a cannon! The MiG-25, such a huge interceptor, intercepts weapons, and has only four R-40 missiles! Now, after launching these missiles, Andrei has no other means of interception.

The two R-40Ts were still flying, but due to the circular infrared seeker in front, the flight resistance increased significantly, and after being launched from the carrier aircraft, they fell behind the R-40R missiles.

The infrared seeker missiles of this era only have the ability to chase and attack, but because the Blackbird is flying at a speed of Mach 3, the aerodynamic drag friction generates a high temperature of several hundred degrees, and this missile can also lock on to the target in a head-on attack.

The R-40T continued to fly forward, the huge heat source in front was accurately captured by the seeker, the circuit of the electron tube transmitted the signal, controlled the rudder surface behind, and after superimposing the speed of the carrier aircraft, the speed of the missile increased to Mach 5, and in the face of the oncoming Blackbird of Mach 3, bravely rushed up!

With a relative speed of Mach 8, you can fly three kilometers in one second! Twenty kilometers is six or seven seconds!

"MiG-25! Missiles have already been launched! Almost at the same time, inside the Blackbird, the reconnaissance 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 with his right hand and pulled the throttle lever to the end with his left hand, allowing the Blackbird to swerve at top speed.

Fly against!