The brutal bombing of Petersburg made the Soviets realize the strength of the Germans again, and such a tragedy could not happen again.

If the Germans wanted to fight a city and directly bombed it with bombers, the Soviet Union would not have to fight this Patriotic War and just surrender.

They have to fight back!

The most needed one is the high-altitude fighter. The MiG-3 was blown up at the base last time, which shows that the Germans were also afraid of this fighter, so now in the rear, the MiG-3 is being produced by the factory at full capacity, but during this war period, there were still many delays in materials.

They need the support of the United States. They do not dislike driving difficulties or the way the cockpit is opened. They only dislike the lack of superchargers.

It must be able to fly to high altitudes and intercept German fighter jets!

With the insistence of the Soviet Union, the United States finally began to help the Soviet Union install superchargers on the engine.

In fact, this aircraft engine is relatively famous in the United States. It originally has a variety of models, some with superchargers and some without them. However, when designing the flying snake, it focuses on low altitudes, and it is not a high-altitude fighter at all.

If the Soviets wanted to install it, they would install it. However, when they arrived at high altitude, they would not blame the American plane for bad luck.

Greenland Sea.

This is already inside the Arctic Circle, and you can see large chunks of floes floating out of the north at any time. For the ships sailing here, those floes are a huge threat.

"Note that ice floes are found ahead and slow down." Captain Chris shouted to his crew on a cargo ship.

The entire hull of the Patrick Henry is still quite new. It can be said that the cargo ship has just been launched for more than a month. Although this time it is not its maiden voyage, it is only its third voyage.

Now, cargo ships like them are being built in large quantities by American shipyards. In the United States, there is also a unified name, they are all called the Freedom Ship. The current Patrick is the first of the Freedom Ship.

Both sides of the United States are the sea. For the United States, if you want to communicate with the outside world, you have to rely on the ocean. In the current war period, almost all the American shipyards are starting construction with all their might to build various warships for the US Navy.

But the United States not only needs warships, they also need a huge fleet of transport ships.

Under this demand, the United States has placed an order for the construction of cargo ships for its own shipyards. One of the most emphasized is to shorten the construction work hours and produce in batches.

At this time, an outstanding figure, Henry Kaiser, appeared in the United States, and proposed to use assembly line to build, with multiple departments working at the same time. A freewheeling requires an average of 500,000 working hours, and the method of segmented assembly is first adopted.

Shipyards for building freewheels usually include steel plate workshops, steel truss workshops, brass casting workshops, cable workshops, woodworking workshops, plumbing workshops, parts (water pumps, etc.), rigging workshops and paint workshops.

Marine hosts and boilers are transported by rail from subcontractor factories. All workshop products are shipped to the pre-assembly area and assembled, and then transported to the final assembly area by cranes or flatbed heavy trucks.

During the initial construction, the current Patrick Henry took 244 days, and the first freedom ship "Oregon Star" built by the Oregon shipyard took 232 days.

A year later, the "Tier" of the Oregon Shipyard was launched in 10 days. The "Robert-Pierre" built by the Richmond Shipyard took only 4 days, 15 hours and 29 seconds to create a miracle of industrial production.

Historically, from 1941 to 1945, a total of 2,751 freewheelers were built in 18 American docks.

This cargo ship has a displacement of 7,000 tons and can carry more than 10,000 tons of cargo. It is the most suitable for the United States today. Unfortunately, its appearance is quite ugly.

The bottom of ordinary cargo ships is in U-shaped shape, but now the bow column is indeed tilted forward and the bottom of the ship is in V-shaped shape. This type of ship can reduce drag and increase the speed of the ship when the ordinary host is installed.

After it was built, Time magazine called it the Ugly Duckling.

Roosevelt attaches great importance to these cargo ships. He knew that only strong maritime transportation capabilities could enable the United States to win in this war. Therefore, when the first ship was launched by the Patrick Henry, Roosevelt himself presided over the launch ceremony.

"It is better to die than freedom. These ships will bring freedom to Europe and the whole world." Roosevelt borrowed Henry's words back then, which became the origin of the name of the Freedom Wheel.

Now, the Free Ship is loaded with cargo, including trucks, grain, high-ranking fuel, and some disassembled flying snake fighters, sailing towards the Murmansk port of the Soviet Union.

They have no choice.

Although the Germans claimed to establish the European Joint Maritime Law Enforcement Committee and wanted to conduct maritime inspections here, it was clearly intended to block the route, but they were already full of cargo at that time.

It takes time to unload the goods, and if they go around the Pacific Ocean, it will take several more months, so they can only risk continuing to follow the planned route.

At the same time, for safety, they deliberately moved the route northward.

Originally they planned to walk the slightly warm Norwegian Sea, but now they passed through the Denmark Strait and walked to the colder Greenland Sea, intending to go east from here, around the north of Janmayen Island, and reach the Barents Sea.

If you can't mess with me, can you hide? Is it true that the Germans really don't give people a way out?

Navigation within the Arctic Circle is full of risks. The wind here sometimes exceeds level 12, and the ubiquitous ice floes are a huge threat. Just facing these natural problems is enough to make people nervous. At this time, the Germans will definitely not make trouble, right?

Chris was wearing the thickest clothes, his beard was frozen in ice, and almost everyone in the cockpit was the same.

There was heating on the boat, but I don’t know what happened. If they heated the cab, the glass in front would quickly frost and I couldn’t see anything clearly.

Now, they can only open the windows and keep the cockpit at the same temperature as outside. In this way, the glass in front is finally clear, and they are all trembling with cold.

If they wear another hat, they will all look like Santa Claus.

Holding the telescope and putting it in front of him, Chris continued to look at the route ahead, as if it had been much better in front and no more glaciers were found.

"Go forward three and speed up!" Chris said.

At this moment, his ears, which were almost frozen, heard some extra movements. He raised his head and saw a highlight in the sky.

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