The speed of sound propagation in the air is 340 meters per second, and once something travels faster than this limit, the sound barrier will be broken, and the phenomenon will come first, and the sound will come later. Because the speed of travel exceeds the speed of sound propagation, this phenomenon is called supersonic!

The upstream missile launched by Changchun is a supersonic anti-ship missile.

In fact, the upstream No. 1 anti-ship missile actually does not have the ability of supersonic speed, but it can't stand the fact that there is a Mainter force field in this world, and this kind of high-capability field is very widely used, and after being blessed on the missile, it can greatly improve the performance and power of the missile.

In the old generations of this world, there was no such thing as anti-ship missiles.

In the old era, although road-based rockets, airborne rockets and other missile-like weapons had been developed when the war lasted to the end, a wave of tsunamis that almost wiped out the world not only brought the deep sea to interrupt the course of the war, but also knocked down the technology of the whole world for at least 50 years!

In the old era, because of the large volume, low cost, wide waterway, and convenient accessibility of sea transportation, it was very convenient and cheap, so almost all the world's elite cities and the fastest developing areas of science and technology were located in the coastal zone at that time. But because of the arrival of the apocalyptic tsunami, a quarter of the land was submerged, turning all the best areas of humanity into underwater ruins.

After the advent of the Deep Sea, due to its Maitert Force Field, all human weapons did little damage to them. It can't be said that it doesn't work.,But compared to the ship girl who also has a force field.,Human weapons are as ridiculous as burning sticks.。

Because there is no demand, there is no development, mankind has not developed such weapons, and the deep sea naturally has no experience in countering such weapons.

Therefore, when four upstream missiles with long tails of flame swooped down on three deep-sea battleships and a deep-sea battle cruiser at a speed of more than 1.5 times the speed of sound, neither Bismarck, who was charging forward and preparing to attack, nor the deep-sea warships waiting for a counterattack, did not react at all to why such an inexplicable thing appeared on the battlefield.

Could it be that this is some kind of advanced carrier-based aircraft that has never been seen?

As soon as the thought came to Bismarck's mind, the four upstream portables struck the four stunned deep-sea battleships.

"Boom, boom, boom!"

It wasn't until four huge orange-red fireworks rose in the depths of the fleet that the deafening sounds of explosions and the screeching of missiles came belatedly, muffling the howling winds and raging torrential rain that resounded over the sea.

"Woohoo, woooo

The sound of the explosions of the first wave of four upstream missiles had not yet dissipated, and the second wave of four small white dots dragging shining tail flames struck again, and 2.5 seconds after the first wave of missiles hit the target, they again collided head-on with the four deep-sea capital warships.

"Boom, boom, boom!"

Four more huge fireworks rose from the sea.

Even Bismarck, who had just been promoted by leaps and bounds, couldn't see what these little white dots looked like, only that they dragged a bright tail flame like a meteor, and their flight trajectory was uncertain but fast as lightning, and they swayed and crashed into those deep seas before they could react.

"Everyone, stop!"

Bismarck, who was leading the fleet charge, suddenly realized something, and immediately raised her hand to signal the ship girls who were charging with her to stop, and then subconsciously looked behind the side.

Sure enough, four more bright little white dots dragged a long tail flame through the rain curtain and rushed into the deep-sea fleet.

"Woohoo, woooo

"Boom, boom, boom!"

These small white dots came from the rear of Bismarck's fleet, and at a frequency of every 2.5 seconds, they continued to attack the defense circle of the deep-sea fleet like a tide.

In the following 30 seconds, 12 waves of Upstream No. 1 anti-ship missiles flew out from the two Upstream-1 launchers mounted on the Changchun ship, piercing through the rain curtain in the sky and into the defensive circle of the deep-sea fleet.

It took only 37.5 seconds for Changchun to dump all 60 Upstream No. 1 anti-ship missiles on board.

With the help of the Mainet force field, each of these sixty missiles accurately hit a deep-sea capital ship. And after being blessed with Changchun's bright red force field, which is at least S-class, the upstream missiles easily tore through these deep-sea capital ships, and the highest is only a B-level protective force field.

After losing the protection of the force field, even the deep sea of the warship level cannot withstand the huge armor-piercing kinetic energy and explosion of the supersonic upstream missile.

In just 40 seconds, 17 deep-sea battle trains, 22 deep-sea battle cruisers, 19 deep-sea heavy cruisers, and two deep-sea aircraft carriers were destroyed and sunk by Changchun's missiles, and even the sea area where the main deep-sea fleet was located turned into a scorching purgatory burning with scarlet flames and dark smoke.

"We are all sharpshooters, every bullet kills an enemy!"

After launching the missile, Xiao Changchun was not busy counting his results, but hummed a brisk song while taking out some source energy ammunition and source energy aluminum materials to fill the power furnace on his ship.

She was a little eager to attack this time, and as soon as she came out of the builder, she went straight to the battlefield, and she didn't get the opportunity to replenish the resources at all.

Although the Sho Naeth Town Guard set up a resource supply point on the way here, she also replenished some source energy fuel and source energy ammunition there, and the most critical source energy aluminum? Changchun, which calls itself a destroyer, is not qualified to enter the aluminum warehouse at all, it is the exclusive domain of the aircraft carrier light mother, and idlers are not allowed to enter!

As for the Yuanneng aluminum that Changchun is now filling into the power furnace, it is actually what she asked for from the eldest sister of the company who manages the aluminum warehouse in the port area.

She has long been full of goodwill, and she has no need to go on the expedition at all, and naturally there is no resource supply, which is her private money for a long time.

"Alas...... Although it is refreshing when you use it, it is still distressing when it is replenished! When I go back this time, I must let the Admiral compensate me. ”

"The remaining missiles can't be wasted on these miscellaneous soldiers anymore, otherwise it will be embarrassing to have no missiles for the heads of the people who want to grab the dock for a while!"

"There's no way, then you can only use the naval guns first!"

Thinking of this, Changchun's little face, which could still be called cheerful, immediately became gloomy.

"Obviously, I finally reunited with the Admiral after a long absence, and it just so happened that there were not many sisters around the Admiral, so I thought that I could enjoy a warm daily life with the Admiral, but I was disturbed by the nasty deep sea of you."

After filling the reserve resources, Changchun turned off the power furnace, and on the side of his footsteps, he immediately activated the sailing mode and galloped towards the battlefield.

"In the middle of winter, I was asked to run to such a deserted place to get drenched in the rain, damn the wharf, I really want to be directly tied up and sent to Siberia to dig potatoes!"