Author Topic: New Shepard - Flight 9 - July 18, 2018  (Read 28259 times)

Offline Prettz

  • Full Member
  • ****
  • Posts: 489
  • O'Neillian
  • Atlanta, GA
  • Liked: 255
  • Likes Given: 28
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #40 on: 07/18/2018 02:50 pm »
I'm curious about these onboard experiments. Aren't they doing the abort before MECO, so no or very, very little weightlessness?
When they do the abort the capsule will have a lot of vertical velocity, and will get more from the abort motor. Microgravity occurs for all parts of flight when there is no engine firing and atmospheric drag is small. Atmospheric drag will be small as long as they are above roughly 200kft (about when MECO normally happens) They can cut off well before MECO and pass that.

If this high altitude test means shortly before MECO, this could end up giving the capsule more vertical speed resulting in a longer than usual stay in microgravity.
Sounds like she just confirmed that's what will happen.

So if the rocket blows up late enough, you'll actually get a little more zero-G than you paid for.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #41 on: 07/18/2018 02:51 pm »
T-10 minutes. Talking about test methadology.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #42 on: 07/18/2018 02:52 pm »
T-9 minutes. Previous pad abort test.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #43 on: 07/18/2018 02:53 pm »
T-8 minutes. Mannequin Skywalker on board.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #44 on: 07/18/2018 02:54 pm »
Hold at T-8 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #45 on: 07/18/2018 02:55 pm »
Added new shade to left of capsule.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #46 on: 07/18/2018 02:55 pm »
Gantry is withdrawing.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #47 on: 07/18/2018 02:56 pm »
Video on Van Horn.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #48 on: 07/18/2018 03:00 pm »
Back to the pad. Gantry looks like it hasn't moved, so that might have been previous footage. Waiting for "team to get aligned".
« Last Edit: 07/18/2018 03:00 pm by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #49 on: 07/18/2018 03:01 pm »
Showing highlight reel of previous flights.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #50 on: 07/18/2018 03:04 pm »
OK, we're out of the hold.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Comga

  • Senior Member
  • *****
  • Posts: 6015
  • Liked: 3855
  • Likes Given: 3440
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #51 on: 07/18/2018 03:05 pm »
I'm curious about these onboard experiments. Aren't they doing the abort before MECO, so no or very, very little weightlessness?
When they do the abort the capsule will have a lot of vertical velocity, and will get more from the abort motor. Microgravity occurs for all parts of flight when there is no engine firing and atmospheric drag is small. Atmospheric drag will be small as long as they are above roughly 200kft (about when MECO normally happens) They can cut off well before MECO and pass that.

If this high altitude test means shortly before MECO, this could end up giving the capsule more vertical speed resulting in a longer than usual stay in microgravity.

Sounds like she just confirmed that's what will happen.

So if the rocket blows up late enough, you'll actually get a little more zero-G than you paid for.

But their graphic shows the abort ignition after separation and MECO.
What would be the point of that?

edit:  The host just described this to be correct.  The abort motors will fire 20 seconds after separation.
This does not explain the purpose, just what they don't want to happen.
« Last Edit: 07/18/2018 03:06 pm by Comga »
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #52 on: 07/18/2018 03:06 pm »
T-6 minutes. Testing RCS.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #53 on: 07/18/2018 03:06 pm »
T-5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #54 on: 07/18/2018 03:08 pm »
T-4 minutes. Back at the pad.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #55 on: 07/18/2018 03:09 pm »
T-3 minutes. Go has been given for launch.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #56 on: 07/18/2018 03:09 pm »
T-2 minutes and 29 seconds and holding.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #57 on: 07/18/2018 03:10 pm »
Out of the hold.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #58 on: 07/18/2018 03:10 pm »
T-1 minute 55 seconds. Gantry is retracting.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 30673
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 18712
  • Likes Given: 2925
Re: New Shepard - Flight 9 - NET July 18, 2018
« Reply #59 on: 07/18/2018 03:11 pm »
T-1 minute. Fin check completed.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Tags:
 

Advertisement NovaTech
Advertisement SkyTale Software GmbH
Advertisement Northrop Grumman
Advertisement
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0