Although the focus this week at the SpaceX event was a Japanese billionaire Yusaku maezawa the first tourist company, which will go to the moon — Elon Musk also revealed many new details about the BFR, a huge rocket SpaceX. During long presentations, we learned about the cinematographic and technical concepts of the planned rocket, which is already under construction and will have to fly in a couple of years, and Musk honestly answered a bunch of questions. So, what we now know about the new redesigned missile, whose name literally translates as “Big fucking rocket” (Big Fucking Rocket).
Sat? Wearing a seat belt? Fly!
BFR “strikingly large”
Okay, it’s not exactly news — it was possible to guess from the title. But now we know how big it is.
“Production design BFR differs in several important points from what I imagined about a year ago,” said Musk. Redesigned spacecraft (BFS, verhushechka missiles) is 118 meters long and 55 meters will occupy the unit. Inside will be about 1100 cubic meters of space to accommodate cargo. This is 15-20% more than what was promised earlier. Maximum load — 100 metric tons for output to low-earth orbit.
“Well, this is amazing a big rocket,” said Musk. The illustration on the wall was a full size. That it would be shipping? Depending on the mission.
Nobody knows how to call these the wings on the type of fins
Although Musk is well understood, how does the spacecraft, he became entangled in nomenclature — not because he forgot but because some parts simply do not have analogues in aerospace at the moment. “There are two front and two rear movable wing or fin” he said. This, of course, a definition — because they also act as legs.
Top fin “is actually just a leg”
The fin at the top of the camera makes it look like a space Shuttle looks like a vertical stabilizer in a sense. But Musk quickly cut this version: “he has no aerodynamic purpose — it’s really just a leg”. He noted that during any atmospheric operations, the fin is pressed to the ship and will not have any effect.
“He looks the same as others, for the sake of symmetry,” explained Musk.
“When in doubt, talk to Tintin”
Noted that the rocket-like vessel Tintin, who went to the moon in the classic comic strip. It turned out that it was just a coincidence.
“Iteration to this landing gear was separated from the control surfaces — it had six legs. I didn’t really like this design aesthetically,” says Musk. “I like the design of the rocket of Tintin, so I would choose her. Now we have three large pillars, two of them waving like wings. I think this design is not worse than the other. Maybe even better. In General, if in doubt, talk to Tintin”.
BFR’s “more of a parachutist than a plane”
From interplanetary spacecraft have no such restrictions in design, like a passenger airliner so it can fly completely differently.
“You need to four control surfaces can operate your machine in a wide range of atmospheric densities and speeds,” said Musk, referring to the four wing-fin. “His behavior is more like a parachute than a plane. If you use ordinary intuition, it does not make sense”.
If you imagine the plane falling to the ground of the person who manages his position, moving hands and feet — it will be closer to the truth.
The entry will “look epic”
“Almost all the time during reentry, the rocket will just try to slow down, distributing the force over the whole possible surface — will use the whole body for braking,” says Musk. In this she has one thing in common with space shuttles, which used its heat-resistant belly is like a big air brake.
“In fact, it will look epic”, enthusiastically remarked Musk.
Of course, this only works in the presence of the atmosphere. “Obviously, if you land on the moon, you do not need aerodynamic surface, because there is no air”.
The configuration of the seven engines ensures the safety with the stock
Careful observers like you noticed that the number and location of Raptor engines on the device has changed since last week. Musk explained why it happened.
“To minimize the risks and cost of development, we decided to harmonize the engine between the rocket and the camera,” he says. In other words, a simple and inexpensive solution was to place the engine as Raptor on the device and on the missile. Earlier it was planned that the unit will be equipped with four engines and two smaller Raptor to land. However, this would have resulted in the increase of the cost of building the vessel.
“The availability of engines in such a configuration, when seven of them, means that you can turn off any engine and even two in almost all circumstances,” he says. “In some cases, you can lose up to four engines and all will be well. For landing need only three engine”.
Rocket, of course, will have more engines — 31 and 42 to start in the future. (The number 42 was chosen for a reason, of course).
The rocket’s got solar panels
In the video, explaining the mission, BFS expands the set of solar panels near the engines. How it works, no one explained, and in the images shows that they are not going to fix. So this is just a concept.
And there is nothing unexpected — solar energy is the most practical way to Fund small and medium electricity supplies are used for systems such as lighting and life support. Most spacecraft and the international space station and enjoy it.
However, until now we have not seen how to deploy these solar panels.
The interior will depend on the mission
Although all terribly interesting, what is inside of the spacecraft, Musk has warned that this is all just concept. He said they learned from working on a Crew Dragon capsule, so much will be taken out of the construction and parts.
“Depending on the type of mission you will have different configuration,” he explained. “If you are going to Mars, a journey of at least three months. You need a cabin, a space for relaxation, something like a meeting room… because you will spend months in this thing.”
Water and air in a journey that will take months, should be in closed systems. However, Musk did not say anything about how they work. But he added: “the Most fun, perhaps, that you will be in zero gravity”.
“For example, you are going to the moon or its orbit, and fly a few days,” says Musk. How to use the free space? “What fun to do in zero gravity? It’s definitely important. Fun is underrated. The most fun things to do in microgravity — we will do it”.
If passengers, of course, to cope with space sickness.
The development of the BFR will cost “approximately $ 5 billion”
Musk refused to give exact figures, given the early stages of development, but said, “If I was trying to guess, I’d say about 5 billion dollars, that is relatively few for a project of this scope.”
And he’s right. For comparison, the space Shuttle program would cost $ 200 billion, if converted to modern. The F-35 will cost about 400 billion. It’s difficult to compare, but at least they give an idea of what money is spent.
Funding is still “ajar” issue
Where will the money for all this, it is not entirely clear, but Musk said that SpaceX has a reliable stream of funding from the missions to resupply the ISS and commercial launches. Next year manned launches will add revenue.
And this is in addition to Starlink, a service of satellite Internet. It is in the testing phase.
Ticket yūsaku Masawi — “non-trivial” donation
Although both men declined to disclose the price paid by Masava, Musk has made it clear that she is high — and, of course, he will also pay for the artists to take with you.
“He made a substantial Deposit, the price is also substantial, and thus materially assisted in the payment of BFR development,” says Musk. “This is not a trivial amount”.
But the rocket already being built
“We are already building it. We built the first cylindrical section,” says Musk, the showing picture is part of the nine metres in diameter. “Soon we will build a dome and section of the engine.”
Test flights will begin next year
“We will begin to implement hopping flights next year,” says Musk. “Depending on how they show themselves, move to higher altitude and greater speed in 2020, and then start running tests in space. If all goes well, in two or three years will be the first orbital flights”.
This is the most optimistic scenario.
The flight to the moon “to glide over the surface” of the satellite
Flight to the moon is relatively unsophisticated, as with all lunar mission. Launch, orbit the Earth, the acceleration toward the moon, using lunar gravity to fly the boomerang back, then landing. But the exact path will be updated, and the Mask has his own ideas.
“I think it would be interesting to glide over the surface,” he says, trying to illustrate the orbit of gesture. “To come as close as possible, then push off and around in a circle.”
Because the moon has no atmosphere, there is no doubt that the ship will slow down or change your path, approaching her. Of course, the dynamics of the orbit will change, but the lunar trajectory, if we are all well aware, is very simple, so it is only about how to safely plan the mission and to squeeze the maximum out of it fantasy Mask.
“This is a dangerous mission”
There will be many tests before Masava and his friends-artists will be able to fly.
“We will have a lot of similar test flights before letting people on Board. Not sure if we are going to test flight around the moon, but try to do it without people.”
“It would be reasonable,” concluded Musk, having, it seems, the decision on the spot. But space flight is a risky event, and this fact hide he did not.
“This is a dangerous mission. We leave a lot of extra room for additional food and oxygen, food and water, spare parts… just in case.”
Matawu, who was sitting beside Musk at the scene, didn’t care — he probably evaluated the risks before buying a ticket. Answering a related question, he pointed out that the training of the astronaut’s life, but the schedule was not planned.
She must not even be called a BFR
Everyone knows what BFR means Big Fucking Rocket, at least, this implies a Mask. This tough approach worked fine with the Tesla. But given the level of pride associated with space exploration by the people, Musk suggested that the name may change.
Not even the fact that a missile called Big Falcon Rocket — osadochek remain.
And how would you call it? Tell us in our chat in Telegram.