Chapter 268： moody engine

Turn on the afterburner, climb up, and release the decoy bomb at the same time. Then, press the operating lever, turn off the afterburner, and let the fighter dive down quickly. The continuous positive and negative overloads make Yuji Ikeda vomit.

Fortunately, the missile was first attracted by the afterburner heat wave, and then climbed up, consuming precious energy in the climb, and after Yuji Ikeda turned off the afterburner and dive, the missile caught up and became more attractive. It's hot flare up.

Baga, the Soviet missiles, **** it! Ikeda Yuji recovered from the dive and couldn't help but want to curse, but unfortunately, before he could say it, he heard an anxious voice in the earphone, 421, pay attention, six o'clock!

The six o'clock direction, the direction of your own tail! Did the Soviets actually bite it? Ikeda Yuji heard the sound of the warning, and immediately pushed his operating lever to the far right, and at the same time stepped on the rudder on the right.

Want to bite yourself and fire missiles from behind? There are no doors! Yuji Ikeda took a simple tactic, turning sideways! Compare your hovering ability to see who is better!

Plaster flag, how about a trick? Kovacevic just saw that the missile he fired head-on didn't work, the opponent dived down to get rid of the missile, and he pushed the nose and dived down. From the height of 8,000 meters, he followed to 3,000 meters, and then the other party leveled, and he followed suit. Just as he was about to launch a missile, the other party began to turn.

Follow along! Just before the dive, the wing swept back to the end, and now, as Kovacevic starts to turn sideways, the wing automatically rises forward, the guys at the Mikoyan Design Bureau, well done! The wing seems to know what's going on in the pilot's head! Compared with manual control, Kovacevic is quite satisfied with the current control.

See what tricks you have!

Left, right, flying in a straight line for no more than five seconds, Ikeda Yuji did not create any chance for the opponent to lock in, but the Soviets behind him couldn't get rid of it.

How to do? Yuji Ikeda gritted his teeth, flicked a switch on the side of his right hand, and pushed the accelerator to the minimum position with his left hand.

Damn, sly islander! Kovacevic looked at the F-15 fighter in front of him, and suddenly there was a sudden brake in the air, and a big guy rose up from the opponent's back!

When the F-15 was designed, the back skin was designed as a large airbrake that could be opened at any speed without causing a pitch change. This 2.93-square-meter speedbrake is unique to the F-15 fighter. Generally speaking, it is used when landing, eliminating the need for a speedbrake.

The rear of the Soviet aircraft had a high dorsal fin, so the same design could not be used. In later generations, the beautiful Su-27 fighter designed by the Sukhoi Design Bureau appeared with almost the same equipment.

Now, this speedbrake is still a new thing. The speedbrake plus the throttle, the speed of the F-15 suddenly dropped, and the MiG-23 behind it suddenly rushed to the front, although the MiG- 23 is also quite agile, but the sudden braking in the air is impossible. At this speed, even if Kovacevic opened the parachute, it was instantly blown by the airflow.

Generally speaking, no pilot will do this in air combat, the most important thing in air combat is energy! Only with energy can victory in air combat be achieved! When you lose speed, you lose everything. For example, in the eyes of countless military fans in later generations, the Pugachev Cobra maneuver of the Su-27, which is like a god, is just a show of air show, and has no practical significance at all.

As it is now, although Ikeda Yuji's sudden deceleration caused the MiG-23 in the back to rush to the front, at the same time, the MiG-23 that rushed out was quickly moving away.

Of course, Yuji Ikeda knows that energy determines everything. He is doing this now because he has sufficient confidence in his fighter. The two F100 engines at the back have a single afterburner thrust of more than 110 kN, and a 13-ton air force. In the case of the machine, the thrust-to-weight ratio of the whole machine has reached 1.7! Among all three generations of aircraft, the F-15 has the highest thrust-to-weight ratio, unrivaled! Not even the F-22 of later generations.

Now, the auxiliary fuel tank has long been thrown away, and some of the fuel in the machine has also been burned. The F-15's overall thrust-to-weight ratio is also around 1.4. It is not a piece of cake to chase the MiG-23 in front!

With this thought in mind, Ikeda Yuji turned on the afterburner and fully opened the accelerator, looking forward to the familiar feeling of pushing back.

"Boom!" A voice came from behind, and then a voice alarm came from the cockpit: "Left engine failure, left engine failure!"

Afterburner is actually in an afterburner combustion chamber in the rear section of the engine, which has a circle of fuel injectors and spark plugs. The fuel injector injects aviation fuel, and the spark plug ignites the fuel to generate more thrust. In this way, Without more oxygen involved, it is completely fuel injection, and the natural fuel consumption rate increases sharply.

And now, with the operation of Ikeda Yuji, the fuel injector began to inject fuel into the combustion chamber, but it did not burn immediately after the fuel injection, and the afterburner failed!

In the afterburner, a large amount of fuel is rapidly increasing, and at the same time, the high-temperature gas of thousands of degrees in the front core machine rushed into the rear combustion chamber with lightning speed.

"Boom!" This sound is a small-scale explosion in the afterburner. With the explosion, a large amount of high-temperature and high-pressure gas is rapidly formed not only ejected backwards, but the overpressure air flow, At the same time reverse flow to the front!

This airflow flows into the outer duct and rushes all the way to the front fan. The airfoil fan blades stall first! The stall of the fan caused the first few stages of the compressor to stall!

Advanced technology requires taking risks. The American F100 engine technology is very advanced, and it is the first engine in the world to achieve a thrust-to-weight ratio of 8. However, reliability has always been a big problem!

After equipping the troops, the F100 engine was prone to stall, the same symptoms as the TF30 of the F-14! And this inherent stubborn problem of the F100 engine is still being solved by the Pratt & Whitney Company. Historically, the F-15 fleet once lied on a large area in 1979 because of these problems and won the victory. The queen of hangars. At the end of 1979, the US Air Force was even forced to receive the F-15A without an engine and store it waiting for the engine.

The early F100 engine was moody! The solution given by Pratt & Whitney is to operate gently, especially not to switch on and off frequently! And in the actual fast-changing air combat, this is simply impossible.

Ikeda Yuji knew that he was in big trouble. (To be continued.) Enable new URL