Chapter 1706 Unmoving

"If you want to push such a big guy, you have to have a very powerful power system, right?" Roosevelt sat in his wheelchair and continued to look at the two million-ton aircraft carrier, and said to Jeffrey.

Although it is a layman, it can definitely be seen that the power required for this is astronomical.

Hearing Roosevelt's words, Jeffrey explained to Roosevelt as if showing off his knowledge: "How much power system is needed depends on the design index we give to the ship. Because when the ship is sailing at high speed, the resistance and speed It is a cubic relationship, for example, our battleship is designed at 30 knots per hour and needs 200,000 horsepower. When the speed reaches 35 knots, the required power will reach a terrifying 400,000 horsepower."

This is the terrible cube. If the speed is higher, it will become a fourth power, which is even more abnormal.

Another meaning of this sentence is that if the design speed is reduced, the required power system can be greatly reduced. In later generations, the power system used by the oil tanker of several hundred thousand tons, and the power system of the frigate of several thousand tons will be almost It's almost the same, don't be afraid of slowness, as long as you can move, it's a big deal to hang around at sea for a few more days, and you won't be in a hurry.

The navy is not too ambitious. If a big guy like this is given a speed that matches the fleet, it will definitely not be possible. Now, it only needs a speed of ten knots. After its own calculation, it is no problem.

Hearing Jeffrey's words, Roosevelt said: "That is to say, our super aircraft carrier will be as slow as a snail?"

This metaphor embarrassed the people present for a while, and Jeffrey hurried over to round up the field: "President, snails don't seem to be able to crawl in the sea, do they? Compare, and compare with turtles, don't look at turtles on land, but in water. , is also quite agile.”

With that said, Jeffrey made a sea turtle swimming action.

Roosevelt laughed, and so did the others, and in the midst of laughter, Jeffrey gave the order for the trial.

If it is an ordinary ship, the leaders of these countries can all get on the ship and go out with the ship for trial sailing. However, this ice aircraft carrier is the first time in history, and no one can guarantee the reliability of this ship. What if he goes out and breaks when he runs, and throws Roosevelt and others into the water?

Therefore, Roosevelt did not propose to go up, nor did the other people. Everyone was on the land together, watching the movements of this behemoth.

"Start the engine." Jeffrey shouted loudly. At this time, the boat hadn't been connected to the radio, not even the superstructure. There was only one hull, so Jeffrey could only shout into a loudspeaker.

Hearing his voice, the people on the boat for the voyage began to get busy.

Start the fuel pump, fill the fuel, make the circuit, and fire!

"Buzz, buzz." A stream of black smoke emerged from the exhaust pipe, and with a roar, a 2,000-horsepower star-shaped air-cooled engine started.

One, two, when all 26 engines were started, the roar resounded throughout the lake. The birds in the distance were disturbed by this sound, flapping their wings and flying far away from the lake. Kai, while flying, turned to look at this behemoth, what exactly is it, so scary?

"Mr. President, our aircraft carrier will be launched soon." Jeffrey said to Roosevelt triumphantly.

The aircraft carrier is about to start!

After the engine was fully started, it took one minute to run at low speed, and after checking that the engine was working well, the operator pushed all the throttle levers of the engine to full speed.

In an instant, the roar of the engine became even louder. The high-speed engine drove the propeller behind to rotate through the reducer. The propeller was immersed in the water. I saw a stream of water formed around the aircraft carrier.

26 engines and 26 propellers form 26 water currents, which flow backwards on both sides of the aircraft carrier, and the aircraft carrier will be subjected to the forward impact of this water current and will move forward.

Jeffrey looked at the aircraft carrier with expectant eyes. Time passed by every second. Soon, the hope on his face turned into doubt and strangeness.

The aircraft carrier remained motionless.

how can that be?

Even if the power is small, as long as it continues to function, the aircraft carrier can still move! This is determined by the basic momentum theorem, but right now, the aircraft carrier shows no sign of moving at all.

Jeffrey turned his head and looked at Roosevelt. At this time, Roosevelt's face was also full of disappointment.

If the aircraft carrier can't move, what's the use? Roosevelt came with hope, but did not see the results he wanted.

Just this thing, can you still go to the battlefield?

"Mr. President, please wait a moment, something must have happened." Jeffrey said, and hurried to the ice carrier.

He took three steps and two steps together, and ran to the docking place in one breath. Looking at the water flow below, he saw the engines driving the propellers, stirring the lake water vigorously. Everything was normal, but the boat Just don't move.

what is the problem?

At the dock, even a tugboat can drag a cargo ship much larger than it. Unless the power is less than the resistance, this kind of immobility will occur.

Thinking of this, Jeffrey squatted down, quickly took out the thick data in his briefcase, flipped to the power system, then took out the pencil and quickly recalculated.

The roar of the engine continued, and the ship was still motionless. In this way, half an hour passed, and the people on the shore were impatient, and behind Jeffrey was the scrap paper, and also threw a dozen sheets. Finally, Jeffrey broke down and stood up.

"We miscalculated a decimal point," Jeffrey said. "We miscalculated the underwater area of ​​the aircraft carrier and miscalculated the resistance, so now our power system cannot drive the ship."

The manpower was still too small, and all calculations were done by hand, and the deadline was very short. There was no review. Geoffrey couldn't believe that this happened.

In this era, there is no super-large oil tanker. If it is a later generation, with a 300,000-ton VLCC tanker, it will need 30,000 horsepower to meet the needs of minimum speed navigation. If it is 2 million tons, it will require at least 200,000. Horsepower is enough. Now, each engine has only 2000 horsepower, and the power of 26 units is also seriously insufficient. At least 100 units are needed!