Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Weather-Cocked > FreeForAll
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 04-27-2020, 03:20 PM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 11,610
Default SpaceX Starship SN4

SN4 passed its cryo test last night. They kicked it up to 4.9 bar which is about 56psi. That's enough for engine tests, but I believe they want to eventually hit 8.4 bar. Before long the SN4 will have a Raptor engine and may have a static test by the end of the week. They plan to slap on some heat tiles to test installation procedures and see how they handle stresses during the static tests and eventual short hops. Whether this ever becomes successful or not, it's still really cool how fast and how far they have come compared to the embarrassing sloth called the SLS.
__________________
I love sanding.
Reply With Quote
  #2  
Old 04-27-2020, 10:29 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 4,894
Default

While I still gotta say this thing looks like something out of a Wallace and Gromit movie (and I liked those movies), I'm still very curious to see this thing go and be a success.

Earl
__________________
Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970
Reply With Quote
  #3  
Old 04-28-2020, 12:23 AM
RobVG RobVG is offline
Craftsman
 
Join Date: Apr 2020
Location: Seattle
Posts: 103
Default

I looked at the previous 3 failures. They looked like implosions.

Do you think they might have been caused by the air in the tank cooling and contracting?
Reply With Quote
  #4  
Old 04-28-2020, 12:31 AM
RobVG RobVG is offline
Craftsman
 
Join Date: Apr 2020
Location: Seattle
Posts: 103
Default

By the way, today I ordered body tubes and a nose cone to model the Starship.

I wanted to model the stack but the superheavy has relitively little fin area.
Reply With Quote
  #5  
Old 04-29-2020, 01:09 AM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 11,610
Default

Quote:
Originally Posted by RobVG
I looked at the previous 3 failures. They looked like implosions.

Do you think they might have been caused by the air in the tank cooling and contracting?

I think I read that two of the three were tested to failure, and the failure point was welded seams. The third one supposedly was due to a mistake in procedure.
__________________
I love sanding.
Reply With Quote
  #6  
Old 04-29-2020, 11:56 AM
RobVG RobVG is offline
Craftsman
 
Join Date: Apr 2020
Location: Seattle
Posts: 103
Default

Just realized

Maybe they’re vented until they’re full to prevent that? IDK
Reply With Quote
  #7  
Old 05-06-2020, 08:03 PM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 11,610
Default

Space-X successfully tested the SN4 yesterday, in a series of tests that concluded with a three second firing of the methane powered Raptor engine yesterday. Once the FAA clears them, they will hopefully make the first "hop" flight.

https://www.youtube.com/watch?time_...eature=emb_logo


.
__________________
I love sanding.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 08:46 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024