Scivillage.com Casual Discussion Science Forum › Culture › Astronautics Arrow Down
Navigation bit BFR Developments

Threaded Mode

BFR Developments
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
#1,411
Yazata Online Oct 9, 2024 10:03 PM (This post was last modified: Oct 9, 2024 10:06 PM by Yazata.)
Render by Ashley Killip (@ChromeKiwi) showing what the new much-redesigned second Orbital Launch Mount is expected to look like. Unlike the first, it will sit above a deep water-cooled Cape Canaveral style flame-trench, not up on tall legs. And it will be simpler, with the 20 raptor quick disconnects that the first OLM used to start the outer 20 raptor engines deleted. That will require major modifications to the version.2 boosters. It's unclear what those mods will look like, though I'm inclined to think that the high-pressure startup gas will still be supplied externally (and not from onboard COPVs that would add too much additional mass) and distributed to the engines through a new onboard manifold.


[Image: GZeHClMaAAIBiSA?format=jpg&name=large]
[Image: GZeHClMaAAIBiSA?format=jpg&name=large]


nsNS
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
#1,412
Yazata Online Oct 10, 2024 03:38 AM
Bill Gerstenmaier, former NASA Associate Administrator for the Human Exploration and Operations Missions Directorate and now a SpaceX Vice President, says “We landed with half a centimeter accuracy in the ocean, so we think we have a reasonable chance to go back to the tower."

https://spacenews.com/nasa-really-lookin...st-flight/

Half a centimeter??!! It suddenly becomes clear why they moved up the first tower catch attempt from Flight 6, where it had been penciled in, to Flight 5.
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
#1,414
Yazata Online Oct 11, 2024 10:33 PM (This post was last modified: Oct 11, 2024 10:35 PM by Yazata.)
Ryan Hansen's deep dive engineering video into how SpaceX proposes to catch huge rocket boosters (the largest ever made) in midair with giant robot arms.

If everything goes according to plan, we should see all this happen in real life in a couple of days!


https://www.youtube-nocookie.com/embed/ub6HdADut50
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
#1,419
Yazata Online Oct 13, 2024 12:24 PM (This post was last modified: Oct 13, 2024 12:53 PM by Yazata.)
Countdown progressing. Go for prop load. New launch time of 7:25 AM central
Fueling underway
Reply
avatar of user
Posts: 7,527
Threads: 850
Joined: Oct 2014
#1,420
Yazata Online Oct 13, 2024 01:37 PM (This post was last modified: Oct 13, 2024 04:06 PM by Yazata.)
Perfect launch!

Stage separation

Nominal orbit insertion

AND PERFECT BOOSTER CATCH!!!!

https://x.com/mrsiipa/status/1845467680695865760


[Image: GZxWiwcaAAAHmiA?format=jpg&name=small]
[Image: GZxWiwcaAAAHmiA?format=jpg&name=small]




[Image: GZxU1lbacAA6Jry?format=jpg&name=small]
[Image: GZxU1lbacAA6Jry?format=jpg&name=small]




[Image: GZxUNpoaAAQbViz?format=jpg&name=small]
[Image: GZxUNpoaAAQbViz?format=jpg&name=small]



Ship Reentry beginning
Getting some burn thru at the flap hinge
It's down in the Indian ocean

Performed landing burn but exploded after it struck the water

There appears to be a shipborne camera at the landing point

Video of it making a vertical landing in the water, then exploding

https://x.com/SpaceNosey/status/1845458465549889845

On flight 4 the booster exploded after water touchdown too. Perhaps running the engines while submerged causes overpressures that makes them burst.
Reply




Users browsing this thread: 5 Guest(s)