View Single Post
  #8  
Old December 7th 18, 01:11 PM posted to sci.space.policy
Jeff Findley[_6_]
external usenet poster
 
Posts: 2,307
Default Falcon 9 Delivers Dragon Into Orbit, Flubs Landing

In article ,
says...

"Rocket Man" wrote on Thu, 6 Dec 2018
14:59:44 +0100:

I wonder if it's useful to add a backup pump since this has never happened
before in almost 40 landings.


No and I doubt anyone is even considering that.


They should first find the root cause of the
failure, maybe it's something minor and the pump itself. I doubt if a pump
system would fail if it was properly manufactured and installed over the
liftime of the stage.


You figure out what sort of failure the pump had. If it's something
other than a 'one off' failure, you make the pump more robust against
that type of failure.


That's one way to handle it. Since they're recovering the stage,
they'll be able to tear down the failed pump and hopefully discover the
failure mode.

That said, Elon Musk has already tweeted that they'll likely add a
second hydraulic pump. On BFR/BFS they'll want multiply redundant
systems so it makes some sense to apply the same methodology to Falcon 9
as a learning experience.

Jeff
--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.