Disappointment was written on everyone's face, Roosevelt looked at the slowed down ice carrier, watched it turn with difficulty, and then returned, and the speed was getting lower and lower, Roosevelt knew how much technical risk was in this whim.

Think about it, the construction of ships, from the first cano, to the later sailboat, to the steamship, has gone through many years of development step by step, and it has only appeared with the progress of technology little by little.

And now?

If you want to make this kind of ice aircraft carrier out in a short period of time without any technical reserves, it will inevitably be accompanied by a series of risks, not to mention a huge displacement.

War is terrible, countless cities are in ruins, countless people have disappeared, it is a human catastrophe, but at the same time, war is also a catalyst for scientific and technological progress, and the technological progress in the entire World War II exceeded the development of a hundred years in peacetime.

In order to win, all countries will have all kinds of brain-opening new weapons appear, with only one goal, to defeat the enemy at all costs and strive for victory.

Island country.

Pheasant Fifty-Six was killed in the attack on Midway, and the island nation lost one of its right-hand men, and at the same time, the advantage that had been easily won disappeared with the destruction of the Midway base.

The island nation can no longer control the western Pacific Ocean, and if the United States needs it, it can go west at any time and continue to attack the island nation's sphere of influence.

Fortunately, Germany was strong, and Germany was preparing to land across the sea, which put a lot of pressure on the United States, so after the Battle of Midway, the United States did not rush to continue to provoke a war in the Western Pacific, but focused on the defense of the Atlantic.

Of course, the island country will not watch the bombing by the Americans without any countermeasures, and the island country has always been thinking of a way to counterattack.

"We still lack intercontinental bombers, and although we have imported some advanced technology from Germany, there will still be two or three years before we develop an advanced intercontinental bomber, and we can't wait so much." In the island capital, high-level consultations are underway.

"The revenge of the pheasant king must be avenged, and the revenge of the Midway base must also be avenged, but it is a pity that our naval strength has been greatly reduced and we cannot continue to compete with the United States for hegemony in the Pacific." Said the successor of Pheasant Fifty-six, Koga Mine, the governor of Yokosuka Town.

Stationed in Yokosuka, he is just a civilian official on the shore, Koga Feng himself has no actual combat experience, no special merits, and has not served in the main force of the combined fleet for a long time, which is a typical three-no product, but he is such a person, but he inherited the duties of Pheasant Fifty-six, and can only blame the promotion principle of the island navy:

In most cases, the three important positions of Minister of the Navy, Chief of the Military Command Department, and Commander of the Combined Fleet were promoted from the Commander of the Yokosuka Town Guard, the Commander of the Kure Town Guard, the Vice Admiral of the Navy, the Vice Minister of the Military Command Department, and the Commander of the Second Fleet.

Only juniors can be promoted, not seniors, unless in extreme circumstances such as juniors are not yet eligible, and then promoted according to the order of the hammock number, that is, the graduation rank, and the order cannot be reversed.

The fate of one person is like this, and Koga Mine also knows that he is not capable of leading the entire fleet, but he has no choice.

Now, after taking office, what he needs to face is to avenge the pheasant and Midway.

The Americans, who were so disgusting, actually used terrible bombs to destroy the entire Midway.

"Yes, relying on existing technology, we will not be able to bomb the continental United States, but our meteorological experts have found a favorable condition. Oishi and Saburo, you can introduce it to everyone. ”

Hearing the words of Tojo, who was presiding over the meeting, Oishi and Saburo stood up, and he said to the high-ranking officials in front of him: "After careful study, a high-speed westerly wind band has been found over our mainland, and balloons entering this wind band will move rapidly. ”

When the atmosphere is studied in depth, it is clear that the convection in the atmosphere is actually the mid-latitude region of the northern and southern hemispheres, between the subtropical high pressure zone and the subpolar low pressure zone, which is the zone where the hot air heated and rising over the equator meets the cold air over the polar region. In this era, the exploration of climate is still very primitive, and it is even more unclear above 10,000 meters in the air.

Since the wind will move eastward with the balloon, why don't you just put a bomb under the balloon and drop the bomb to the United States?

This is simply a good idea, compared to the consumption of bombers, balloons are simply the least resource-intensive, the cost is the lowest, the effect ...

"With balloons, we can't control the flight of the bomb, so we can't control the point of impact." One of the admirals reacted and said to Oishi and Saburo.

"Yes, but we have calculated accurately, as long as you fly in the sky for 69 hours, you will definitely be able to float to the mainland of the United States, as for the accuracy, we can achieve it by increasing the number, if we release 100,000 balloons to the mainland of the United States, even if only 10,000 arrive, that is 10,000 bombs, even if only one-tenth of them explode in residential areas, that is 1,000 bombs."

"Yes, this plan is good, and I recommend executing it immediately." Koga said.

The cost is low, the cost of building 100,000 balloons is not as good as that of a strategic bomber, but it can have the effect of thousands of bombs, absolutely good idea!

The people present echoed for a while, and in this way, the plan to bomb the balloon was approved.

If the ice aircraft carrier is a brain-opener, then the bomb balloon is almost the same category, after all, what kind of brain does it take to fly half the world with a balloon?

Coming out of the base camp, Oishi and Saburo immediately found their colleague, Hidetoshi Arakawa.

"We can't use a normal sounding balloon." Hidetoshi Arakawa said, "The balloon will fly higher and higher, and eventually it will burst out, and it won't be able to fly that far at all. ”

Sounding balloons are used in meteorology, because the buoyancy is greater than gravity, so it will continue to rise, and when the high air pressure is low, the balloon will expand and become larger and larger until it bursts.

If you want to fly that far, you have to be able to control your altitude.

"yes, that's the biggest problem I've ever had, and we have to fix it quickly." Oishi and Saburo said.

"Looks like we're going to have to design a set of automata." Hidetoshi Arakawa quickly captured his thoughts: "We loaded 30 sandbags weighing 2 to 7 kilograms in the gondola under the balloon, and when the balloon flew below 9,000 meters, due to the air pressure, the bolts that held the sandbags would automatically untie, and the sandbags would fall in turn, and the balloon would rise due to weight loss. When flying above 10,500 meters, one of the valves of the airbag automatically opens, expelling hydrogen and lowering the balloon. ”

Hidetoshi Arakawa said as he quickly drew a drawing: "Let's start the experiment as soon as possible!" ”