The four consecutive sets of booster rockets were all used up in less than twenty minutes. After the pushing sensation completely disappeared, the warship threw away the last set of booster engines and returned to its original shape. At this time, only the main engine was left to propel the warship, and the acceleration effect was achieved.
Far less obvious than the Rockets.
Huang Bo nestled in his chair and breathed a long sigh of relief: "Okay, the attendant will stay, the others can move around freely, Ye Han comes with me!"
After saying that, Huang Bo stood up and tilted his head at Ye Han with a smile.
There is no gravity in the universe, and with the current human technology, it is impossible to install any artificial gravity equipment on 024.
But people in the battleship can't always float around, so the military thought of a way. All the floors in the battleship are made of magnetic materials, the cabin partitions and ceilings are made of non-magnetic materials, and all crew members are equipped with magnets.
With shoes, the crew can walk around in the battleship.
However, magnetic shoes are not gravity after all, and walking with them is awkward. Many people would rather float around in a battleship than wear these things.
Ye Han had just boarded the ship and was in a hurry. He didn't have time to receive the magnetic shoes. He immediately floated up after unbuckling his seat belt. He immediately grabbed the chair and flew lightly to the cabin door.
Huang Bo laughed when he saw this, simply took off his magnetic shoes, and floated out of the bridge with Ye Han: "Time flies so fast, I still remember when I first met you, you were still a lieutenant, and it was only a few years ago.
Time has become my equal."
"Do you still remember me?" Ye Han was very surprised.
"Why don't you remember?" Huang Bo looked back at Ye Han, "I was the one who wanted you to join the fleet."
"Yes, I always remember it." Ye Han said, "If it weren't for you, I wouldn't be able to wear the power armor."
"That has nothing to do with me. If you don't work hard, no one can help you." Huang Bo waved his hand, suddenly reached out and grabbed the handrail fixed on the bulkhead, stopped outside the captain's room door, and pressed his thumb on the door.
, the hatch slid open silently.
Huang Bo floated into the captain's room: "Come in, you're welcome."
Ye Han stepped lightly and slowly floated into the captain's room.
In a weightless environment, there is no difference between sitting or not. Huang Bo was not polite at all and directly handed a document to Ye Han: "I came to you to talk about the Marine Corps."
Ye Han was puzzled: "Didn't the decision be made a long time ago?" The battleship trial requires all personnel to be present, and the Marine Corps is no exception.
Huang Bo sighed: "It was decided long ago, but he doesn't have this blessing."
"What's wrong?" Ye Han was secretly surprised.
"If you suffer from space blindness, your expedition mission will definitely be hopeless," Huang Bo said.
Ye Han twitched his lips: "What a surprise. I was not prepared at all. I came up alone with my wife... Captain, doesn't the expedition fleet have to be voluntary? How could I be transferred to the fleet when I never applied?"
"The grievances in his heart were like a torrential river, continuous and continuous.
The order has been issued. No matter how reluctant you are, you have no choice but to bite the bullet and go ahead. But you have to ask clearly why?
Huang Bo replied: "There are not many qualified Marines in the first place, and there are even fewer with rich combat experience like you, so the higher ups sent you here. We really can't find anyone."
Ye Han cursed inwardly. The Marines were all trained by me. How could they not even be able to find a qualified one?
Huang Bo seemed to notice something was wrong with Ye Han's face, and explained: "We have soldiers, but we don't have suitable officers."
At this point, Ye Han could only sigh: "What else can I say? This journey will last five or six years..."
Huang Bo's eyes widened with astonishment on his face: "Five or six years? Who told you?"
"Isn't it?" Ye Han was immediately stunned, "They all say that. I heard it was said during the meeting above."
"That's a fart." Huang Bo said without hesitation, "I know this, and I'm telling you this. The person who said this is a half-understood idiot who doesn't understand the current aerospace technology at all.
I didn’t think about it, so I told Brother No. 1 that it would take two and a half to three and a half years, and I almost got promoted from major general to senior colonel because of this.”
Ye Han was so shocked that he couldn't close his mouth: "How long is it if it's not five or six years? I heard that it takes more than three months for a battleship to fly from the earth to Mars. According to this calculation, flying to Jupiter is indeed more than two and a half years!"
"That's because your calculations are wrong!" Huang Bo said unceremoniously, "You all came from the crash course. You only learned a little bit, and you are not as good at calculating as you are."
"How long does it take?" Ye Han asked anxiously.
He doesn't care about the promotion of major general to senior colonel, he only cares about the exact time it takes for the fleet to return.
"This matter is quite complicated to say, let me do the math for you." Huang Bo stretched out a hand and raised a finger, "The time we set out was not randomly chosen. It was planned to set off from the moon at this time and place.
Yes, first of all, for the earth, the fleet comes with the speed bonus given by the moon, do you understand this?"
In order to increase the initial speed, the military tried many ways. Even if he was a real captain, he would still have to figure it out.
"Yes, the speed at which the moon revolves around the earth." Ye Han nodded.
"Yes, that's it, about a little over one kilometer per second." Huang Bo raised his second finger, "Then the booster rocket accelerates. I don't need to tell you about this?"
Ye Han asked curiously: "What is this speed?"
Although the booster rocket lasts for a short time, it can provide the warship with a higher initial speed, which shortens the acceleration time of the main engine. The higher the initial speed, the shorter the time it takes to fly to Jupiter.
"I can't say for sure now, but I can tell you that with rocket boost and main engine propulsion, the speed of the fleet when it reaches the earth is about twelve kilometers per second."
Ye Han nodded: "It's enough."
"How is this enough?" Huang Bo raised his third finger, "After flying close to the earth, the fleet will use the gravitational slingshot effect to accelerate again."
"Can you use a gravity slingshot from the moon?" Ye Han was surprised.
Before Ye Han was transferred to the training team, he knew about the gravity slingshot, but he never quite understood what the gravity slingshot meant.
Just think about it, the spacecraft is pulled towards the planet by the planet's gravity, just like a stone falling to the ground. It is not difficult to understand that there is a speed bonus. However, when leaving the planet, it is not pulled by the planet's gravity, and the speed it has already gained is lost.
Give it back to the planet?
It wasn't until he came into contact with astronautics that he realized that his thinking was indeed too simple.
If the planet is stationary, the spacecraft cannot use the planet's gravity to accelerate, but one of the most basic definitions of physics is that absolute motion is relatively stationary, and the planet always revolves around the sun!
While the spacecraft is approaching the planet, the planet is constantly running. The spacecraft flies behind the planet, and the gravity of the planet is like an invisible rope pulling the spacecraft. The spacecraft is pulled by the planet to speed up, and the planet that is constantly revolving is pulling the spacecraft along.
So the spacecraft received the speed bonus given by the planet... Friends who read books, you can search for "" and you will find this site as soon as possible.
