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#4460591 - 02/09/19 03:03 PM Why SpaceX Built A Stainless Steel Starship  
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F4UDash4 Offline
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Interesting video if you have an interest in engineering, materials etc....




https://www.youtube.com/watch?v=6AcE7hBhpYU


“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14
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#4460594 - 02/09/19 03:32 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Great video. My experience with engineering ( as opposed to pure science ) is that engineering is all about making mistakes and learning from them


Archie Smythe

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#4460595 - 02/09/19 03:38 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Interesting, thanks.


WARNING: This post contains opinions produced in a facility which also occasionally processes fact products.
#4490838 - 09/29/19 06:15 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Condensed from Musks' full presentation last night.


https://www.youtube.com/watch?v=cTPYUox41bU


“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14
#4490859 - 09/29/19 10:38 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: No105_Archie]  
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Originally Posted by No105_Archie
Great video. My experience with engineering ( as opposed to pure science ) is that engineering is all about making mistakes and learning from them


I wanna know if I regularly drive over any bridges you've built biggrin


"everything lives by a law, a central balance sustains all"
#4490864 - 09/30/19 12:13 AM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Didn't build bridges ...but had my hand in a lot of buildings wink


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#4490912 - 09/30/19 04:12 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Elon Musk, Man of Steel, reveals his stainless Starship


Quote

In the spring of 2014, I visited the Michoud Assembly Facility, based in Southern Louisiana. Already, technicians were building barrels for the Space Launch System rocket's core stage. And NASA was investing tens of millions of dollars to modernize Michoud to produce the rocket. At the time, an aerospace analyst for the Rand Corporation, Peter Wilson, explained that, "They’re throwing the money into this program, into places like Michoud, to make it very expensive to change course."

NASA has not changed course. And after at least 5.5 years, during which time NASA has spent more than $10 billion on the SLS rocket, they are finally almost done assembling that first core stage, consisting of two large fuel tanks, four main engines, and all of a rocket's associated plumbing.

One answer to the question of why this has taken so long, and required so much money, is that there has been a lack of urgency. Large complex development programs—like, say, super heavy lift rockets—work best with low levels of funding during the design phase, a spike during development, and then diminished funding during flight production. Instead, after Congress created the SLS rocket program with a baseline of about $2 billion a year, it kept funding at, more or less, flat levels plus inflation. This is a great strategy for creating and sustaining jobs, but it's a poor way to go about rocket development.

SpaceX's Starship prototype, fabricated in a field in South Texas in five months, offers a counter example. It's what a sense of urgency can accomplish.

The SLS rocket core stage, consisting of four space shuttle main engines, measures 64.6 meters tall, with a diameter of 8.4 meters. The Starship Mk1 vehicle is 50.0 meters tall, with a diameter of 9.1 meters. So they are roughly the same size. Neither is the complete rocket. On the launch pad, the SLS will have two very large side-mounted solid-rocket boosters, derived from the space shuttle. And Starship is actually the upper stage of SpaceX's next-generation rocket, Super Heavy.

By itself, the SLS core stage cannot get to orbit. In fact, according to physicist Scott Manley, without its side-mounted boosters a fully fueled SLS core stage cannot even lift off the launch pad. The SpaceX Starship prototype, with three Raptor engines instead of a full complement of six, also cannot get to orbit. But it should be able to reach at least 25 to 30km, said Manley, who has a popular rocket science YouTube channel.

The SLS rocket remains a couple of years from its maiden flight. Starship, however, will likely make a 20km flight in November, Musk said.

Perhaps the biggest difference between the two new rockets is the velocity of their development. The SLS core stage, which uses heritage technology from the space shuttle, including its main engines, has taken at least 5.5 years to build, and billions of dollars.

Starship Mk 1 didn't even exist until this spring, and it may leap off the pad before year's end. This appears to underscore the value of urgency and clarity of purpose. At SpaceX the urging comes from the top. As Musk said of schedules on Saturday night, "tight is right, long is wrong." And Starship has a clear exploration purpose as well, allowing humans to settle other worlds, and fuel optimism in humanity's future.



“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14
#4495228 - 10/30/19 03:20 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Some very interesting observations about SpaceX / StarShip: The SpaceX Starship is a very big deal

#4495242 - 10/30/19 05:40 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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A space elevator is the potential end game. Once we have one of these and the requisite "geostationary" orbital counterweight platform, fueling up these starships from orbit will be relatively easy.

Relatively.

Pumping all that fuel up into space won't be without challenges and difficulties. But it'll be better than burning fuel to put more fuel into orbit.

That is, until we perfect some propulsion methods that don't require liquid fuel for travel to the Moon, Mars and beyond.



This is all barring our discovery of a better solution to arrive in orbit and beyond. If we were to unlock the secrets of the Higgs boson sooner, perhaps we'd be countering gravity with massless craft, defying all logic and reason, entering space with little to no effort, or through other exotic avenues. Until then, think elevators.


Regardless, Starship is pretty #%&*$# cool. Nice blog, btw.

Last edited by Mr_Blastman; 10/30/19 05:48 PM.
#4495252 - 10/30/19 06:24 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Stick to the plan man!
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IMO we gotta clear a tons of space debris before we get something like a space elevator


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#4495259 - 10/30/19 07:26 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Yeah, that orbital counterweight would have to be a doozy (as in, a LOTTA mass)... and coming up with an elevator connection that could stand up to the various physical challenges... It's going to be a long time, if ever, before that comes to pass.

#4495312 - 10/31/19 08:23 AM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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A long linear accelerator going up some mountain flank might be a more practical (intermediary?) solution than an elevator.

An elevator might be a much more practical thing to build on the moon.
Mars OTOH has Phobos on a collision course, not ideal. Phobos would have to be moved out of the way, one way ot the other.

#4495613 - 11/01/19 08:05 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: Genbrien]  
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Originally Posted by Genbrien
IMO we gotta clear a tons of space debris before we get something like a space elevator

Police that trash https://terminallance.com/2018/06/19/space-lance-1-the-final-frontier/

#4496380 - 11/07/19 08:04 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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Elon Musk says SpaceX’s Starship could fly for as little as $2 million per launch




"Musk said that fuel costs for the Starship should be around $900,000 per launch, and that once you factor in operational costs, it’ll probably add up to around $2 million per use. That’s “much less than even a tiny rocket,” Musk added, explaining why he views it as “imperative” that this launch system needs to be made."


Even if he's off by a factor of 10 ($20 million) or 50 ($100 million) it's still a game changer.


“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14
#4497808 - 11/21/19 12:59 AM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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SpaceX Starship prototype suffers testing mishap in Texas, video shows


Event happens at about 3:27 PM on the video. Blew the forward bulkhead off and produced a rip down the side of the vehicle near the top.



https://www.youtube.com/watch?v=2d8l_0w2VKM


“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14
#4497992 - 11/22/19 09:22 PM Re: Why SpaceX Built A Stainless Steel Starship [Re: F4UDash4]  
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SpaceX has lost its first Starship prototype—is this a big deal?

"The key to grasping why SpaceX can afford an accident like this is to understand its iterative design philosophy. Under this approach to the design of spaceflight hardware, the company builds vehicles, tests them, and flies them as quickly as possible. And if they fail, as often happens, SpaceX fixes them. This is especially true of the Starship program in which teams of SpaceX engineers in Texas and Florida are separately building prototypes of Starship to learn from them and then improve the design in subsequent versions.

The nomenclature SpaceX uses is "Mark," as in the vehicle the that was severely damaged Wednesday was Mark 1, with Mark 2 being built in Florida, and work already beginning on Mark 3 in Texas. It is possible this "Mark 3" vehicle will fly into orbit sometime in 2020.

This "fail early, fail forward" strategy allows a company to move more quickly and improve its design along the way. It also results in public failures, such as the all-explodey rocket Wednesday. This cannot exactly strengthen customer confidence in Starship, but given that failures are baked into the development process, it does not diminish Starship's overall prospects."


“If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.” - 2 Chronicles 7:14

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