Topic: Interesting stuff about SpaceX Starship (hate the name)  (Read 980 times)

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Offline Nemesis

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Interesting stuff about SpaceX Starship (hate the name)
« on: May 02, 2020, 10:14:06 pm »
A youtube site,  There are non Starship and non SpaceX things as well. 

https://www.youtube.com/channel/UCBNHHEoiSF8pcLgqLKVugOw/videos
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #1 on: June 06, 2020, 05:23:04 pm »
SpaceX Employee on SN4 explosion: "Hey Boss, we blew up another one."
Elon Musk: "Well, don't just sit there, roll the next one out to the test stand!"

Not literally of course.  They had to dismantle the test stand and pretty much immediately began assembling another.  They have at least the next 3 in varying stages of assembly so the project isn't being much slowed down.  Amazing to see a rocket literally being developed with a production line of units ready to take up where the prior one fails. 
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Seti Team    Free Software
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Offline Tulwar

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #2 on: June 08, 2020, 09:45:10 am »
The Soviets weren't much on test stands.  They seemed to like figuring out what went wrong with their engines by the way they destroyed entire vehicles.
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #3 on: June 08, 2020, 09:55:39 am »
I think this is 4 that SpaceX has blown up in this line of prototypes.  First time I know of the stand going with it.  They were impressively fast at getting a new stand well underway, they had to have the material on hand just for it. 
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Seti Team    Free Software
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #4 on: June 20, 2020, 10:50:48 pm »
I've known this for days but I find it impressive that SpaceX is not only being allowed to reuse the Crew Dragons capsules but allowed to launch them on reused Falcon 9 rockets. 
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #5 on: August 08, 2020, 09:40:04 pm »
They did a 150 meter hop with a prototype using 1 off center engine.  Looked like a flying silo with no fins or nose cone.  Seemed really stable in flight.
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Seti Team    Free Software
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #6 on: October 17, 2020, 06:58:28 pm »
They did a 2nd hop with a different prototype. 

They are preparing another (3 engines installed) for a hop up to 15 or so kilometers.  After some test fires they should install the nose cone on this one.  The engine section has its (operable) fins and the nose cone is having its fins installed.
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Seti Team    Free Software
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #7 on: October 17, 2020, 07:47:01 pm »
Some thoughts.

The Eagle:

SpaceX has the Falcon and the Starship can be considered to be one of the several code names for a new rocket.  I would love it if SpaceX when finally launching a orbital mission were to formally rename it as The Eagle class. 

Space Station:

Mars colonizing via Starship requires a space station.  Why?  Starships are equipped with 6 engines, 3 for sea level use and 3 for vacuum.  The vacuum engines can handle Mars and Lunar landing and launch so why carry the sea level Raptors all the way to Mars and back?  So the extra engines should be dismounted at a space station and the Starships going beyond LEO should be dedicated to that.  Since they would no longer be able to land on Earth they could pick up cargo at the station.  It might even be best to have that station in Lunar orbit with fuel delivered from the Moon.  2 bonuses one the ships can take more cargo and two the extra engines get to be reused. 

How to build the station? 

Make a Starship engine section with no nose cone and mount a cargo module there.  The cargo module separates once final orbit is achieved and the engine module returns to Earth Base for reuse.  The cargo shell itself could become part of the station adding substantial volume.  It wouldn't take many launches to equal the size of the ISS. 

Back in the 70's one of the methods of building a station was to inflate a balloon and build up the station shell inside the balloon by successive coats of sprayed on aluminum.  So a cargo shell could carry up a balloon and the mechanism to inflate it as well as the spray mechanism and the first supply of aluminum.  Other loads could add more aluminum, balloons or fittings.  No reason this couldn't be used to build a spinning ring station. 

The Not so Heavy Booster (NsHB):

Even with Mars and Lunar fuel manufacturing there is the problem of minimizing the amount of fuel a Starship needs to take on in orbit.  So how about sending a Starship that is intended to have the cone/cargo section removed to use as a base building and have the engine/fuel section function as a booster for another starship for launch to orbit.  The booster returns to refuel on the surface and the Starship enters orbit either fully fueled or nearly so.  Fewer fueling launches.  Fueling Starships aren't needed in the same number.  Fueling Starships get the same boost so again they carry more fuel per trip. 

Remember lifting the Starship onto the NsHB is easier in the lower gravity of Mars or the Moon. 

Going Further Out:

For further out from Mars not only refuel in Mars orbit but rendezvous with a fully fuel NsHB in high Mars orbit and either the Starship can go further or carry even more cargo. 

Potentially you could have a StarshipM where a ship going further out is modified by having extra cylindrical sections added to the cargo/crew section to the nose cone or remove (in orbit) the engines and fuel tanks with the NsHB being permanently mounted as the engine section.

Why keep building Falcons?

Use a cut down Super Heavy booster (or maybe the NsHB) to replace the Falcon 9 first stage.  Fewer engines as Raptor is more powerful,   Standardized components between two classes of booster.   Even a Falcon heavy would just be a modified super heavy with an intermediate number of engines and fuel sections.    Of course and adapter would be needed to take current Falcon cargos like Crew/Cargo Dragons.
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Seti Team    Free Software
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Offline Nemesis

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Re: Interesting stuff about SpaceX Starship (hate the name)
« Reply #8 on: Today at 01:09:26 pm »
I saw a online comment comparing a Blue Origin New Glen rocket that had been launched and landed 7 times and how SpaceX hadn't yet managed 7 launches and landing.  I'm not registered on the site so I couldn't point out the BIG difference.  The 6 time reused Falcons actually were used to launch payloads into orbit, Blue Origin as far as I know has yet to make an orbital launch.  Returning from an orbital launch of cargo for reuse is harder than a suborbital test flight such as New Glen has been doing so their 7 launches and returns for a single New Glen is less impressive to me by far. 

Bezos was far richer than Musk when they started their "competing" rocket companies yet to date all Bezos has accomplished is tests.  Wake me when they have actual successful orbital launches. 
Do unto others as Frey has done unto you.
Seti Team    Free Software
I believe truth and principle do matter. If you have to sacrifice them to get the results you want, then the results aren't worth it.
 FoaS_XC : "Take great pains to distinguish a criticism vs. an attack. A person reading a post should never be able to confuse the two."