Recent Posts

1

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on Yesterday at 01:29:08 am »

Interesting, a thrust puck for super heavy has been seen at Boca Chica with holes for the full load of Raptors.  Maybe for BN2 or BN3 I don't know. 

Also a thrust puck with placements for 3 vacuum raptors in addition to the gimballed 3 standard raptors.   Made I presume for an orbital Starship. 

2

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on Yesterday at 12:31:45 am »

From Elon Musk:

"A (relatively) small CH4 leak led to fire on engine 2 & fried part of avionics, causing hard start attempting landing burn in CH4 turbopump."

Now what exactly constitutes a hard start and why that caused the explosion still needs explanation.  I don't think this rules out my idea.  But we'll have to wait for more info.

I have seen statements that a hard start causes a pressure surge which would be compatible with the idea of the re-pressurization system blowing one or both of the header tanks.

3

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on April 09, 2021, 07:53:00 pm »

I just recalled that the "wannabe" for a space station plans to "harvest" 2nd stages abandoned in orbit to make into station modules.  Now if this would work what company is better positioned to do so than SpaceX?  Even prototype starships that they know they can't land from orbital speed would make HUGE modules for a station once you empty the fuel tanks and remodel them for habitation and equipment. 

4

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on April 09, 2021, 04:29:57 am »

I was pessimistic it was done on Thursday.  (SN15 moved to the launch pad)

Interesting, a thrust puck for super heavy has been seen at Boca Chica with holes for the full load of Raptors.  Maybe for BN2 or BN3 I don't know.  Something like 34 Raptors are being shipped to Boca Chica as well, enought for a fully stacked orbital Starship/Super heavy combo.  Wonder if Musk really does expect an orbital launch by July even if he can't land either part. 

Interesting times. 

Also saw that there are 2 serious contenders to starting building a commercial space station within 2 years and a wannabe that may be a bit of a long shot but possible.  One of those plans to NOT use SpaceX for anything. 

I'd like to see SpaceX buy Bigelow and use Starship to send up modules bigger than anything anyone else can send.  Even if they have to use Dragons to deliver the personnel. 

There was a April Fools video with Bezos claiming to have bought NASA to destroy SpaceX and Tesla.   

5

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on April 07, 2021, 04:19:12 am »

Looks likely that SN15 will move to the launch pad Friday and maybe pressure testing and static fire for Monday and Tuesday.  Not that long before some form of launch. 

6

Dynaverse II Experiences / Re: Plasma Bolts!

« Last post by Javora on April 06, 2021, 07:33:46 am »

You have no idea...  lol

7

Dynaverse II Experiences / Re: First PvP in 11 years!

« Last post by FPF-DieHard on April 05, 2021, 02:42:30 pm »

You still doing this?

I hurt my shoulder so I had to take a break from PC games for a bit I'm more or less recovered.   PM me here and something can be arranged.

8

Dynaverse II Experiences / Re: Plasma Bolts!

« Last post by FPF-DieHard on April 05, 2021, 02:40:29 pm »

Did you actually attempt this or were you joking?

it works now, I've been looking to build a new server BUT I CAN"T BUY PARTS!!!!

Soon, when the chip shortage is over.   The H&S guys have some stuff going on.

9

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on April 05, 2021, 02:22:00 pm »

From Elon Musk:

"A (relatively) small CH4 leak led to fire on engine 2 & fried part of avionics, causing hard start attempting landing burn in CH4 turbopump."

Now what exactly constitutes a hard start and why that caused the explosion still needs explanation.  I don't think this rules out my idea.  But we'll have to wait for more info.

10

Engineering / Re: Interesting stuff about SpaceX Starship (hate the name)

« Last post by Nemesis on April 02, 2021, 04:30:21 pm »

My option would be 3/ the header tank at midships using heated propellant to maintain pressure had an "over pressure event" and blew leading to the whole tank-age going too. 

I'm starting to see discussion now of the possibility that this is the actual cause.  No confirmation but discussion when I hadn't seen any such idea before posting it here.