At a maximum distance of forty nautical miles, the effectiveness of siren surveillance radars was not noticeable.

However, the information detected so far can at least tell the number of warships and the direction of advance of Wang Yu's siren fleet.

With four heavy cruisers and six destroyers, the Sirens were a medium-sized fleet.

If he occupies a favorable position, Wang Yu feels that he can wipe out these sirens by relying on his own single ship.

But what made Wang Yu find interesting was that the Siren fleet was not heading in the direction of the Annapolis.

This is a message worth pondering.

In general, the sirens have both silent sailing and attack modes.

When in a silent sailing position, it does not produce a siren reaction that is detectable by AWACS.

Sirens that can be detected must be in attack mode.

And when the sirens are preparing to attack, they generally sail directly towards the target.

The battle formation will not be changed until it is close to the line of sight.

As a result, the sirens are not facing Wang Yu's side, but in a different direction, so this can only mean that for these purely logical sirens, their main target at the moment is not the Annapolis where Wang Yu is located.

Wang Yu's heart jumped.

A fleet of sirens who have not aimed at themselves for the time being, but have launched an attack mode, then their target ......

It must be the human fleet of this world!

This is no less important for Wang Yu, who is currently struggling to find this world civilization, than wanting to buy a game, which happened to meet a historical low, and he picked up a sum of money while walking on the road, which can be described as a surprise that fell from the sky.

Now the tower must be opened.

Wang Yu immediately adjusted the course of the Annapolis according to the direction of the Sirens, and he needed to intercept the front of the Siren fleet in a salvo angle attitude when he was within visual range, so as to launch the largest attack on the Sirens at the first time.

That's where speed comes in.

Unfortunately, due to power damage and a rupture of the hull, the Annapolis could not reach a maximum speed of 33 knots in perfect condition, and it could only be as fast as possible at present.

Wang Yu immediately turned the clock to full speed.

The Annapolis clock has four gears: Slow (1/3), Medium (2/3), Standard and Full.

In addition to these four regular gears, there is also a special gear called the maximum combat speed (Flank), that is, the maximum speed that can make the battleship burst out in a short period of time, regardless of the life of the power system.

As Wang Yu changed the gear of the clock, the "Kraken" control system automatically transmitted the command to the power compartment, and then, with a high-frequency and rapidly increasing roar from inside the battleship, which was like a jet engine increasing its power, the part of the power system that could still be used by the battleship began to operate at full capacity.

In just one minute, the speed of the battleship was clearly raised to the full speed that it could reach at present, that is, twenty-three knots.

This acceleration performance is a ghost animal.

This is another pride of the supership - the efficient diesel-electric-fuel combined power system.

When cruising, the ship will use diesel engines as power, and several high-power diesel engines will be responsible for generating electricity, and then use electric propulsion to move the battleship.

However, when the warship starts, accelerates, or needs to sail at full speed, a gas turbine with full thermal efficiency under high load will be used as the main power.

This kind of fast start and small size engine can allow the battleship to complete the speed change in a very short time, which can be called the ejection start of the battleship, which is much faster than the traditional steam turbine.

Unfortunately, the fuel consumption of gas turbines is extremely high, so in order to meet the requirements of long range, Annapolis did not use a more sensitive fuel-fuel combination, but supplemented the diesel engine with less fuel consumption for normal sailing.

At the same time, in addition to driving the propellers, diesel engine power generation can also provide sufficient power support for the "Kraken" system on the Annapolis.

Due to the need to fight against the sirens, the power systems used by various ships of the human navy in that world before were simply varied, and the combination of integrated electric propulsion and combustion and combustion and combustion can be seen, but in general, the combination of conventional oil-fired boilers and steam turbines is still the most common.

However, considering that the powertrain is not the focus of this book, this setting is over.

I will not introduce too much about the advantages and disadvantages of different power systems, so as not to be suspected of the number of water words (fog).

Off topic.

The propeller stirred up the sea, and the wake formed behind the battleship became whiter and whiter, while the bow broke through the waves, and the snow-white broken waves scattered and splashed in all directions.

The Annapolis, located in the middle of the hull, at the top of the chimney, which integrates the gas turbine intake and the exhaust port of the high-temperature exhaust gas, also released a burst of white condensation fog - the water mist produced by the condensation of the high-temperature exhaust gas, mixed with a trace of exhaust gas from the combustion of the diesel engine, and discharged from the ship.

Compared to the heavy oil boiler ships with black smoke when sailing, the Annapolis looks much more beautiful and tidy.

The appearance of the battleship can really reflect the combat effectiveness to a certain extent, brothers!

The hull of more than 28,000 tons also increased the shaking amplitude during the accelerated voyage, but it was not a problem for Wang Yu, who had lived on the battleship for a long time.

If it is more than 30 knots at full speed, then the shaking is intense.

The battleship picked up speed, and Wang Yu began to check the battleship's armament.

In the naval battles experienced in the last world, the four main turrets of the battleship were not damaged, and they were still able to exert their full firepower.

Wang Yu expects that in the next battle, he will be able to solve all the battles with the main gun.

Not because of anything else, but because of the powerful main gun output capacity of the battleship Annapolis,

The main gun used by the Annapolis was a 203 mm naval gun, with a total of 12 guns in four triple turrets, and a total of 540 rounds of ammunition for each gun.

Of course, there are many cruisers equipped with 203 mm naval guns, and the Hindenburg-class and Unzen-class heavy cruisers of the last world's human navy have the same configuration of twelve 203 mm naval guns.

In fact, the key was the rate of fire of the Annapolis' naval guns.

The rate of fire of a normal 203 naval gun is about 9 to 15 seconds per round, and an average of five to six rounds per minute is the limit.

But Annapolis used the same naval gun of the Des Moines class, which can achieve a round of 5.5 seconds, that is, a minimum of ten salvos per minute, and in one minute, it can rain 120 shells on the opponent......

There is no doubt that this is the unsurpassed amount of projection of the supercruiser.

When fighting against the Sirens, sometimes the amount of projection can make the difference between winning and losing a battle.

Siren warships have a strange trait that they can be destroyed if they take enough "damage" within a certain amount of time.

This type of damage is defined in a wide range of ways, from armor-piercing shells that can penetrate the hull of a siren, to a high-explosive projectile that can ignite flames on a siren hull, to a torpedo that can penetrate the underwater hull of a siren.

According to the research on the human side, it is inferred that the siren warship has a "battleship consciousness", and this consciousness is responsible for controlling all the modules above and below the battleship in battle, and when the battleship is damaged, it will have an impact on this "consciousness", and if the impact exceeds the threshold that it can bear, then the siren warship will be destroyed.

So, to sum up, in addition to directly inflicting direct damage to the hull of the siren with armor-piercing shells, humans can also destroy the siren by causing it to burn or enter the water, causing continuous damage.

Therefore, even a thick-skinned siren battleship could still be sunk in the face of the ample projection of the ship's guns.

Therefore, unlike the traditional naval battles in which a cannon is an inch larger and crushing a person, even a light cruiser armed with only 152 mm guns has the possibility of challenging a battleship when fighting against the sirens.

It's still the same sentence, whether you believe it or not, I believe it anyway.

The main turret began to rotate to the side side, and Wang Yu asked the battleship to turn the gun in advance, in the direction where the sirens might appear.

After a period of full sailing, the battleship finally managed to cut into the direction of the Siren fleet.

At this time, the siren surveillance radar in Annapolis also ended its function and entered a long cool-down period.

But at this time, it doesn't matter whether you want radar or not.

The Annapolis is in position, and the Siren's fleet will soon be in view.