Of course, just this is completely not enough for Xiao Ruojing, the king of mecha damage.

Among the spare parts prepared for the three mechas, many of the turbojet engines were lost in Xiao Ruojing's hands combined, which was more than the sum used by Qin Xin and Jiang Weina.

If Qin Xin hadn't ordered two more batches of spare parts, the 233** squadron would have been unable to fly a long time ago.

After discussing this issue in detail with Professor Yang on the phone, Professor Yang gave the motivation for changing the liquid rocket.

The turbojet engine was often damaged by Xiao Ruojing's skyrocketing magic, and eventually the guide was damaged by the shattered turbine.

But the liquid rocket motive does not have this concern.

Because there is no turboprop, the most vulnerable component, as long as the structural parts of the motivation are strengthened accordingly, the liquid rocket engine can last longer in the hands of Xiao Ruojing, a sabotage maniac with huge fluctuations in magic input.

As long as Xiao Ruojing's input mana does not exceed the upper limit of the mana withstood by the materials used to make the engine, then the liquid motive will not be damaged.

The motive of the mana enhancement was also able to withstand the liquid fuel and oxidizer activated by the mana, allowing the liquid rocket engine that was only the size of a finger in this vent to burst the thrust of the turbojet motive on Yuan Qinxin's body.

Equipped with such a high-efficiency engine, Xiao Ruojing can fly faster, increase the degree faster, and the explosive power in a short period of time will become more powerful.

Of course, how could Qin Xin install so many good things for Xiao Ruojing alone?

The new parts ordered from Li Yunxin also transformed Qin Xin and Jiang Weina's mechas, reducing the friction of the joints to a minimum.

However, because of the problem of the joint drive device, the joints on Qin Xin and Jiang Weina's rack could not reach the point where there was no resistance at all, compared to Xiao Ruojing's mecha flexibility, it would still be reduced, but it was much stronger than before.

And the external liquid engine on the back footsteps, when necessary, can also be installed Qin Xin's degree to rise several steps again, and the straight line plus flight can even break through the sound in a short time.

However, although the liquid rocket motor is powerful, the disadvantage is also obvious, that is, its power is commensurate with the huge fuel consumption.

Even with an additional fuel tank, the liquid engine will not work for too long. Not to mention that the liquid rocket engine also has to carry an oxidizer canister and waste a lot of fuel tank space, so that the liquid rocket engine can work for a shorter time.

Moreover, the exhaust temperature of the liquid rocket engine is much higher than that of the turbojet engine, making it impossible for the liquid engine to be turned on for a long time, unless the witch who equipped it does not mind playing with human flesh teppanyaki.

Qin Xin and Jiang Weina are okay, the liquid motive is an external equipment, and the liquid rocket external engine can only be discarded as an auxiliary equipment when necessary.

And Xiao Ruojing, because the magic power was too unstable, the thrusters of the mecha on her body were all transformed into liquid rocket engines by Qin Xin, who was ruthless.

Although the twelve liquid engines will bring unusually powerful explosive power for a short period of time, fuel consumption and handling will also be a big problem. Compared with Qin Xin's combat radius of more than 200 kilometers, Xiao Ruojing only has a combat radius of less than 10 kilometers, which is not even an airport defender, at most a hangar defender.

And because of the huge thrust, the handling also takes time to get used to.

However, the fastest training method Qin Xin could think of was to drop Xiao Ruojing from the sky and let her use the liquid rocket engine on her body to land smoothly.

Under the threat of death, Xiao Ruojing will definitely not be lazy.

Well, this training method has no scientific basis, it's just that Qin Xin wanted to get revenge at the same time, and by the way, let Xiao Ruojing familiarize himself with his mecha.

Qin Xin never thought of himself as a person who held grudges, usually revenge after a few days, so why should he remember it?

"Ah!!h

While exclaiming incessantly in the sky, beside Xiao Ruojing, who was rolling in all kinds of useless maneuvers, Qin Xin and Jiang Weina, who had canceled the magic infusion, followed her down with gravity.

Xiao Ruojing, who kept spewing blue flames from her body, kept swinging her feet, and her body rotated at the same time, and finally became familiar with the control method of the liquid rocket engine.

Under the magic power of Xiao Ruojing's body and the assisted control of the on-board computer, the propulsion of the liquid rocket engine kept changing, and finally Xiao Ruojing's body was steadily suspended in mid-air.

Looking at the distance below that was less than fifty meters from the ground, Xiao Ruojing swallowed a little frightened.

"Look, I'll just say it's effective." Qin Xin, who adjusted the turbojet engine on his body, came to Xiao Ruojing's side. "It only took more than ten seconds to learn how to control zhì."

"Captain Qin Xin, I hate you!" Xiao Ruojing shouted at Qin Xin regardless of it.

"Well, the control just now is still not very skilled, let's do it again!" After calculating the amount of fuel Xiao Ruojing had left, Qin Xin stretched out his hand to grab Xiao Ruojing.

"Captain Qin Xin, don't dream, I don't want it!" But Xiao Ruojing turned around, all the thrusters on her body were turned on, and she fled into the distance. "Can you still catch up with my rocket engine with just a few jet engines?!"

"Hey, you're so naïve." Qin Xin just turned on the external liquid rocket engine on his feet, and chased after her in Xiao Ruojing's frightened eyes. "Not to mention the amount of fuel left and how far you can go in the limit time before the rocket engine overheats, if you can really keep your mana output at peak time and ensure a supply of more than ten seconds, then I really can't catch up with you."

"Now." Qin Xin directly hugged Xiao Ruojing's body, and then the vortex jet on his body turned on violently, aiming Xiao Ruojing's flight direction at the sky. "Come on, girl!"

"Ahhhhhh!!h

Time passed day by day, and Qin Xin and the others were also quickly familiar with the changes brought about by the liquid rocket engine.

In the blink of an eye, another half a month has passed.

"Point 2 is in place." Xiao Ruojing has always been full of energy, and the voice of the report sounded after she came to the predetermined location.

"Point three is in place." Although a long period of indifference has caused a withdrawn personality, Jiang Weina, who has been slowly changing recently, has also come to her place.

"Point 1 is in place." Looking at the insect beasts below, Qin Xin said lightly. "Although the insects and beasts have not been able to show the coordination brought about by the high degree of unified command before they came out recently, everyone has not to take it lightly."

"Understood!"

"Then act according to the previous plan and wait for my orders!"

"Yes, Captain Qin Xin!"

Half a month later, the insect beast came again as usual.

And this time, the improvement of equipment made Qin Xin's choice of ambush location even more daring.

This time, Qin Xin directly chose an unusually flat place, and prepared to start their dangerous insect and beast sweeping work in the place where the formation of the insect beasts could be expanded.

I don't know if it's because the survival time of the insect beast master is too short, or if the focus of its current focus is not here, after the last two organized attacks, the insect beasts no longer have the ability to adapt under the high command that they showed before.

Although he had some doubts, Qin Xin still maintained his previous battle plan.

Because Qin Xin has that confidence!

"The insect beast enters the predetermined attack range, and the operation begins!"

Seeing the army of insects and beasts in front of him enter the predetermined position, after Qin Xin gave the order loudly, he turned on the thruster and flew out first.

Seeing Qin Xin suddenly appear from the ambush site, of course the insect beast would not sit still.

The bone spur energy scorpion began to adjust the shooting angle, and the flying sickle worm and the sickle worm on the ground began to form an interception formation to protect the blue-black ladybugs distributed in the central range.

Although the insect beast's reaction was fast, it couldn't stop Qin Xin's impact at all.

Because Qin Xin's degree is too fast.

The power of the liquid rocket engine attached to the back of his feet was turned on to the maximum, and the flying sickle insects that had hurriedly taken off and were in a dense formation were shaken apart by the cone-shaped annular air flow generated by Qin Xin's body that rushed in.

In the blink of an eye, Qin Xin rushed to the center of the insect beast army.

With a backhand draw, Qin Xin took out his own bazooka from the weapon hanger on his backpack and aimed it at the bottom to shoot five rockets in a row.

After the transformation of Qin Xin and Lao Zhou, the 40-caliber bazooka was installed with a magazine carrying four rockets.

With excess thrust and the mecha's joint drive being accurate, Qin Xin didn't have to worry about the drastic increase in the weight of the transformed bazooka at all.

What is brought about by a strong amount of ammunition is an instantaneous explosion of fire in a short period of time.

In just an instant, the two targets on Qin Xin's impact path were covered by the magic flames of Qin Xin's rocket explosion.

Discarding the rocket launcher that had been launched in the air, Qin Xin rushed out of the sky above the army of insects and beasts without looking back.

Not only is it because the fuel of the liquid rocket engine is about to run out, but it is impossible for Qin Xin, who has limited ammunition and weapons, to fight a protracted battle with the insect beast, and it is no longer possible for the insect beast that has reacted to it to let Qin Xin continue to attack the remaining targets.

If you force your attack, the danger will increase exponentially.

But if the target is not completely destroyed, then the combat operation will be a failure.

However, Qin Xin, who had already flown away from the sky above the insect beast and at the same time attracted a large number of flying sickle insects, was not worried that his action would fail.

Because Qin Xin has teammates who can be trusted...... As long as they don't go wrong.

The crosshair in the specially calibrated Type 85 sniper rifle scope was tightly locked by Jiang Weina, as the flying sickle insects around flew away to chase Qin Xin and vacated the target.

Bang!

The 7.62 mm bullet was pushed by the explosive gunpowder through the friction of the rifling and rotated forward at a speed of 800 meters per second.

One and two seconds later, the bullet blessed by magic accurately hit the target that Jiang Weina had locked.

Seeing that the target was eliminated, Jiang Weina was not as impulsive as last time, but picked up the Type 85 sniper rifle and flew into the sky, converging with Qin Xin in the sky.

"Lock on to the target! Shoot! Xiao Ruojing shouted energetically

The five rockets were shot by Xiao Ruojing, forming a straight line of landing, shaking and tearing apart all the other insects and beasts between her and the target insect beast.

Putting aside the rocket launcher that shot out, the main liquid rocket engine behind Xiao Ruojing was driven to the limit.

With a slight jump, Xiao Ruo, who was flying close to the ground, directly broke through the sound barrier.

The air flow set off by Gao Rush not only caused the sickle insect next to him who was planning to pursue Xiao Ruojing to be swept away. Even the shock wave generated in front of Xiao Ruojing due to high flight became her second line of armor, directly shattering the bone spur shot that flew at her.

With a slight bump, Xiao Ruojing's assigned target was smashed by her.

As Xiao Ruojing completed the task, the interception barrier above the insect beast's head began to slowly disappear.

As soon as the direction of flight turned, Xiao Ruojing began to fly upwards to raise the altitude.

Qin Xin, who came to answer, grabbed Xiao Ruojing's outstretched hand, and flew directly towards the defensive line with Xiao Ruojing, who was about to run out of fuel.

"This is the 233** squadron, the mission is complete, start the return!"

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