0

Your Cart is Empty

Elon Musk shares SpaceX is working on Starship nosecone production

by Evelyn Arevalo February 20, 2020

Elon Musk shares SpaceX is working on Starship nosecone production

Featured Image Source: Elon Musk

SpaceX teams at Boca Chica Beach, Brownsville, Texas are rapidly building Starship SN1, the first flight vehicle that will perform a high-altitude launch of 20 kilometers and will attempt a propulsive landing. A Vehicle Assembly Building (VAB) is under construction simultaneously, the second prototype of Starship - SN2 - will be manufactured in a full enclosed environment. SpaceX teams have been working 24/7 operations. Teams started to stack up the flight vehicle's stainless-steel rings and inner structures that includes propellant dome tank. During this assembly process, each stainless-steel piece that was built and make up Starship SN1 will be welded together as they're stacked (video below). SpaceX is hoping to have the entire vehicle stacked, fully assembled, by the end of February in order to transport it to the nearby launch pad that is about 2 miles away from the assembly facility. If assembly goes well, a static-fire test of Starship SN1’s 3 Raptor engines could occur early March. Starship SN1 is scheduled to perform its first test flight 20 kilometers above Boca Chica Beach sometime after March 16.



The founder and Chief Engineer of SpaceX, Elon Musk, has been spending most of his time since early February working alongside SpaceX employees on Starship production. Last night, he shared that they are currently working on building Starship SN1's nosecone section, which is the very top of the flight vehicle, he Tweeted video of their progress. In the video below, a shiny, mirror-like 301 stainless-steel is being used for nosecone production. Musk previously said that they selected to build Starship SN1 out of 301 stainless-steel because "it’s obviously cheap, it’s obviously fast -but it’s not obviously the lightest. But it is actually the lightest. If you look at the properties of a high-quality stainless steel, the thing that isn’t obvious is that at cryogenic temperatures, the strength is boosted by 50 percent" Musk explained to reporters, "Most steels, as you get to cryogenic temperatures, they become very brittle. You’ve seen the trick with liquid nitrogen on typical carbon steel: You spray liquid nitrogen, you can hit it with a hammer, it shatters like glass. That’s true of most steels, but not of stainless-steel that has a high chrome-nickel content. That actually increases in strength, and ductility is still very high. So you have, like, 12 to 18 percent ductility at, say, minus 330 degrees Fahrenheit. Very ductile, very tough. No fracture issues."

 



Musk explained other benefits of building a stainless-steel Starship: "I think is quite important, when you consider this as a reentry vehicle. See, here’s the other benefit of steel: It has a high melting point. Much higher than aluminum, and although carbon fiber doesn’t melt, the resin gets destroyed at a certain temperature." He added, "So typically aluminum or carbon fiber, for a steady-state operating temperature, you’re really limited to about 300 degrees Fahrenheit. It’s not that high. You can take little brief excursions above that, maybe 350." Starship is designed to become a fully reusable launch vehicle that must be capable of withstand the highest temperatures upon the fiery atmosphere reentry when returning from space, in order to be reused. When asked where the stainless-steel comes from Musk responded, "It’s just 301 stainless. Let me put it this way: 304 stainless is what they make pots out of. There’s plenty of it." This makes Starship production a bit more cost effective compared to the production of other rockets, "The carbon fiber is $135 a kilogram, 35 percent scrap, so you’re starting to approach almost $200 a kilogram. The steel is $3 a kilogram." So, stainless-steel is the most affordable option that offers strength and heat-shield properties.

SpaceX has also been rapidly building tents to support Starship production in an enclosed environment, to allow teams to work without the weather intervening. A massive Vehicle Assembly Building (VAB) is under construction, Musk shared a video of the building that will also serve to protect spacecraft during hurricane season.



VAB looks tall enough to support Starship and also the vehicles first-stage which is a massive Super Heavy rocket booster. Starship will require a Super Heavy rocket to get out of Earth's atmosphere. The company aims to build Super Heavy as reusable and reliable as their Falcon 9 rocket that is capable of using the power of its own engines to return from space, landing vertically on autonomous droneships at sea. The final version of Starship will be fully reusable. There is still a lot of work SpaceX will do before the development of the rocket-spaceship duo, first they will build many prototypes. Musk said at least 20 Starship prototypes will be tested at Boca Chica, these will be used to test different features that will aid in the development of a space ready Starship.






Also in Tesmanian Blog

Elon Musk Sets New EV ‘Benchmark’ As Tesla Announces $25K Model
Elon Musk Sets New EV ‘Benchmark’ As Tesla Announces $25K Model

by Eva Fox September 29, 2020 0 Comments

Tesla's announcement during Battery Day that the company would introduce an affordable electric car within three years was tremendous news. The advent of an EV for $25,000 with fully autonomous capability will fundamentally change the entire automotive industry, making the Tesla car one of the most attractive options.
Read More
SpaceX will soon have two Dragon spacecrafts docked at the Space Station
SpaceX will soon have two Dragon spacecrafts docked at the Space Station

by Evelyn Arevalo September 29, 2020 0 Comments

“After launch of Crew Dragon’s first operational mission with astronauts on board, SpaceX will launch its 21st cargo resupply mission to the ISS – the first to use the upgraded version of Dragon outfitted for cargo missions,” the company stated.
Read More
Tesla Giga Texas Will Have Lithium Hydroxide Refinery to Eliminate Transportation Cost & Time
Tesla Giga Texas Will Have Lithium Hydroxide Refinery to Eliminate Transportation Cost & Time

by Eva Fox September 29, 2020 0 Comments

Tesla will build a lithium hydroxide chemical plant in Texas near the Gigafactory, marking the car company's first step towards in-house lithium production and reducing its dependence on third-party suppliers.
Read More

Previous  / Next