On the 14th, the fleet and carrier-based aviation were still in charge.

However, this time it was a different position.

The officers and men of the fleet went to the "Saoyi" and operated antiaircraft guns to "intercept" the incoming "enemy planes."

For realism, remotely controlled unmanned target aircraft were also used to imitate enemy aircraft.

To put it simply, the officers and men of the fleet were asked to use the antiaircraft guns of the "Saoyi" to intercept the incoming target planes and test the ship's air defense combat efficiency.

In addition, it is also about finding effective attack tactics.

This arrangement is actually related to the Nuland Navy.

According to the information provided by the Sixth Bureau, the designers and engineers of the Nuland Federation participated in the design and construction of the "Narrow-Day", and the Narrow-Wing Navy has already handed over the design drawings of the "Narrow-Day" to the Newland Navy, and has also sent designers to the Newland Federation, perhaps to participate in the design and construction of the Newland Navy's new battleships, and may make use of some valuable designs on the "Narrow-Day", such as the centralized deployment of anti-aircraft guns.

To say, the Nuland Navy does not yet have fast battleships, let alone the experience of using fast battleships.

When the "North Carolina" class is completed and put into service, the Nuland Navy will first have to solve the tactics of using fast battleships, and the easiest way is to learn from the narrow navy.

Based on this, it can be inferred that the Nuland fast battleships will tend to be narrower fast battleships in terms of anti-aircraft fire configuration, and they will be more powerful. For example, like the Imperial Navy, 40-mm guns were used to enhance the density of fire at short and medium ranges, and anti-aircraft machine guns were replaced by 20-mm guns.

It is precisely for this reason that it is necessary to find effective attack tactics with the help of the "Narrow".

A day's delay actually takes a day for the shipyard workers to plug the holes made by aerial torpedoes and aerial bombs.

By the 15th, the second protagonist arrived.

That's right, it's the "Asahimi".

A few days ago, the "Asahihi" was still being repaired at the Puzhou shipyard.

In order to participate in the tests, not only was the repair work suspended, but a new barrel was specially replaced for one of the main guns, and all models of 400-mm shells were brought with them.

The task of the "Asahimi" was to test the power of 400-mm shells.

The test lasted for half a month.

The main thing is to stop after each hit, arrange for technicians to go to the "Sagi" to survey and map, plug the hole that has been blown up, and then start again.

The point is also that there are too many shells to test.

In the end, even the "Luhe" came to join in the fun, and by the way, 350-mm shells were tested.

The 41st Task Force left the test area on the 15th, and Bai Zhizhan and Zhao Yu also returned to China on the same day by patrol plane, so the two learned the test results after the fact.

This is similar to the previous theoretical calculations.

The "Sagi" is a 60,000-ton hull with an empty space, and its protection capability is slightly better than that of the "Asahimi" class, which is just a little better.

The old 400-mm armor-piercing projectile, with a mass of 950 kg light bullet, poses very little threat to the "Narrow-mindedness", and only has a 50% chance of penetrating the main armor belt of the "Narrow-minded" at a distance of about 7,000 meters, and shortens to 5,000 meters for the turret and the conning tower, and other key protective parts. After the engagement range was expanded and the warp engagement phase began, the light bullet could not penetrate the horizontal armor of the "Narrow".

The new 400-mm armor-piercing projectile, that is, a 1080-kilogram heavy projectile, is capable of penetrating the armor of the "Narrow" in an area of 8 to 17 kilometers. Even when the engagement range is extended to 20 km, there is a 30% chance of penetrating horizontal armor.

The key is the latest armor-piercing projectile, a super-heavy projectile weighing 1280 kg.

This new type of armor-piercing projectile, which was officially finalized and put into production after the war and has not yet been distributed to the fleet, is capable of penetrating the armor of the "Narrow" in almost all ranges.

The point is, the armor-piercing performance is very strong when shooting horizontally!

There is only one prerequisite: the use of Type 99 55 times diameter 400 mm naval guns.

According to later research done by the Navy, it is also related to the materials used to make artillery shells.

This discovery led the Imperial Navy to explore the possibility of making armor-piercing shells from super-hard metal, and to invest in the development of processes for the production and processing of cemented carbide. Otherwise, the Imperial Navy would not have been the first to start making armor-piercing shells from tungsten alloy, and later in the war it was also used to make aviation armor-piercing shells.

As for the 350-mm shells, even the new armor-piercing shells of 650 kg, they did not pose a threat to the "Narrow" and could not penetrate its armor at almost all ranges.

Of course, this is not surprising.

As a result, it is equivalent to putting all the old battleships into the cold palace, even the "Longxing" class.

The 400-mm naval guns of the "Longxing" class were limited by the volume of the medicine room, and could not use super-heavy ammunition, and could not even give full play to the power of heavy ammunition. Because it was impossible to use the existing turret to install the Type 99 400-mm naval gun, and replacing the turret was not only costly, but also very troublesome, and had to occupy the dock, so from the point of view of the wartime cost ratio, the "Longxing" class did not even have the value of transformation.

As a result, the old battleships that were finally salvaged and repaired from Chengjiang Port became gunboats to support the landing force during the war.

The test of using the "Sagi" as a target is not over yet.

Later, after draining the seawater from the hull, plugging the holes blown out by the shells, and dragging them to the deep waters, the final round of tests was carried out.

In the last round of tests, there were two protagonists, a light cruiser with a submarine.

All heavy torpedoes were used.

This test proved the correctness of the tactics proposed by Shen Pu and Zhu Huasheng in disguise.

At that time, it was a submarine that fired a salvo of six heavy torpedoes on the port side of the "Saoyi", and all of them hit, causing thousands of tons of water to enter the left compartment and tilt to the left of the tank close to 20 degrees.

If it was a battleship that had already been built, I am afraid it would have capsized and sunk.

Then, a light cruiser fired 4 heavy torpedoes on its starboard side, again all of which hit.

As a result, not only did the "Sayama" not sink, but also because of the flooding of the starboard compartment, the tilt was corrected, to be precise, the left tilt was reduced to 6 degrees.

After suffering 10 heavy torpedoes, the "Narrow" still stubbornly floated on the sea!

It was not until the next day, after all the mapping work had been completed, that it was sunk by the light cruiser with 4 torpedoes.

In fact, in the final torpedo attack, the Imperial Navy also tested the magnetic proximity fuse.

Unfortunately, the test results were not obtained because the prototype fuze did not work properly.

After being hit by heavy torpedoes for the third time, the "Saoyi" struggled on the surface of the sea for almost half an hour.

It was not until the stern sank completely, lifting the bow off the surface of the sea, and the hull broke off from the middle due to the huge dead weight, and then quickly sank to the bottom of the sea.

This also proves that the huge hull itself is a guarantee of survivability.

Of course, this also proves the necessity of building large aircraft carriers in disguise, and the use of thin armor and small compartments can also improve the survivability of aircraft carriers.

With this test, all doubts against large aircraft carriers were eliminated.

From then on, when conditions permitted, the aircraft carriers of the Imperial Navy became larger and larger.

Of course, this series of live-fire tests was carried out in secret, otherwise it would not have been arranged to be carried out in Asahi.

In terms of external claims, the "Sagi" was sold as scrap steel to the shipbreaking enterprises of the High Ju Kingdom.

In fact, it was the sister ship of the "Sagi" that was sent for dismantling, the second ship that was damaged in Changqi.