Boeing Starliner

Author
Discussion

Flooble

5,565 posts

101 months

Saturday 21st December 2019
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eharding said:
MartG said:
They made a mistake in the press conference saying crew could have fixed the error - press is going in for the kill...

Some are also raising the question of whether they need to rerun the flight or go straight to a manned test - surely a successful unmanned docking with the ISS is a contractual requirement ?
The NASA Administrator was directly asked this in the press conference - https://youtu.be/NpQlxN4xbKM?t=1992 - and said he does not rule out approving a manned Starliner launch without first having demonstrated an unmanned ISS docking.
Yeah, they will probably have to give Boeing a free pass on going to straight to a crewed launch. Boeing already skipped the In Flight Abort test (wasn't mandatory so they didn't do it) and has carried on with this test despite their abort test parachute failure, as well as trying to ask for more money. If NASA asked Boeing to repeat the test it would go against the previous approach and likely be massively expensive for NASA. I'd be quite twitchy if I was one of the astronauts though.

Petrus1983

8,759 posts

163 months

Saturday 21st December 2019
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The capsule isn’t back safely on the ground yet - even in testing it squeaked through with only 2 parachutes deploying. Boeing has a revenue of $100bn per annum and has already dropped circa 15% on the back of the 737 trouble - if they were to be silly enough to go straight for manned flight it would amaze me, they need to reach into their pockets and sort this. The fall out if they sent US citizens to their deaths would be catastrophic to the company. And yes, I really do believe losing 3 American astronauts would have a far graver result for them than losing a few hundred non-Americans on the other side of the world.

Beati Dogu

8,896 posts

140 months

Saturday 21st December 2019
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I remember hearing about a flight of Lockheed F-22 stealth fighters that were flying from Hawaii to Japan when they'd just come into service. The flight involved them flying over the international date line as as soon as they did, all their computer systems crashed & couldn't be rebooted. The aircraft could still fly, but their communication, fuel subsystems, and navigation systems were all knocked out. Luckily they were still in visual contact with their tanker aircraft and they were able to follow them back to Hawaii. Without them and if the weather had been bad, they would have been in real trouble.

It was of course caused by an error somewhere in the lines of code and after 48 hours it was fixed they were able to complete their journey OK.

MartG

Original Poster:

20,693 posts

205 months

Saturday 21st December 2019
quotequote all
I heard a similar story about F-16s all flipping inverted when they crossed the equator

Beati Dogu

8,896 posts

140 months

Saturday 21st December 2019
quotequote all
Ha, that's great. The aviation and space industry is littered with dumb and expensive issues like these.

A couple of years ago, a Russian rocket was lost after launch from their new Vostochny cosmodrome in Siberia. It was only their second launch from this facility (itself a byword for Russian corruption). Lost along with it was a weather satellite and nearly 20 micro-satellites.

Unfortunately, while the Soyuz booster did its job perfectly, the Fregat upper stage had been set to think it was launching from the usual Baikonur cosmodrome in Kazakhstan. So when it took over in the upper atmosphere, it got all confused and broke itself apart.



Beati Dogu

8,896 posts

140 months

Saturday 21st December 2019
quotequote all
They've confirmed they're bringing the Starliner capsule home on Sunday, with the deorbit burn scheduled for 12:23 pm UK time. The landing at White Sands, New Mexico should be approximately 34 minutes after that.

Coverage will start at 11:45 am on NASA TV:

https://www.nasa.gov/nasalive

Petrus1983

8,759 posts

163 months

Saturday 21st December 2019
quotequote all
Beati Dogu said:
They've confirmed they're bringing the Starliner capsule home on Sunday, with the deorbit burn scheduled for 12:23 pm UK time. The landing at White Sands, New Mexico should be approximately 34 minutes after that.

Coverage will start at 11:45 am on NASA TV:

https://www.nasa.gov/nasalive
I’m at a Christmas party - how long is that in orbit? It has a 60hour duration which is by far the lowest time for astronauts to survive. Are they in that window?

Beati Dogu

8,896 posts

140 months

Saturday 21st December 2019
quotequote all
It'll be 33 orbits, or about 48 hours, so its endurance would not have been an issue.

It's in a stable orbit about 250 kilometers up currently. So they've taken the time to go over the issues and are testing the capsule's various systems. This would have been part of the test flight anyway, but clearly they've had to move them up somewhat, as it's not going to be up there for a week, like originally planned.

The systems are working fine apparently, it just doesn't have the fuel left to raise itself to the ISS' altitude of 408 km.

If they don't bring it back at the time stated above, they have another window of opportunity about 7 hours later the same day. They'll want to bring it down in the daytime, so they can get good footage of the parachutes.

Eric Mc

122,053 posts

266 months

Sunday 22nd December 2019
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Not sure about your times for the landing on Sunday. Spaceflight Now are quoting the following times -

"Two landing opportunities are possible Sunday in New Mexican desert, one at around 8 a.m. EST (6 a.m. MST; 1300 GMT), and another at 3:50 p.m. EST (1:50 p.m. MST; 2050 GMT). As of mid-afternoon Friday, officials had not decided which landing opportunity to choose".

So it looks like an afternoon slot or an evening slot for us in the UK.

Eric Mc

122,053 posts

266 months

Sunday 22nd December 2019
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You Tube link to live coverage -

https://www.youtube.com/watch?v=p3PTDpwuuao

Live coverage starts in 2 hours.

Beati Dogu

8,896 posts

140 months

Sunday 22nd December 2019
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The first timescale I quoted was from the NASA website and this earlier attempt is the one they're going with.

https://www.nasa.gov/nasalive

They'll have a post-landing press conference at 3 pm our time.


Flooble

5,565 posts

101 months

Sunday 22nd December 2019
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Seems they have managed the de orbit burn correctly so it’s on track. Not much to see on the live coverage at the moment - I can’t make out anything useful on the screens

MartG

Original Poster:

20,693 posts

205 months

Sunday 22nd December 2019
quotequote all
Down safely

Eric Mc

122,053 posts

266 months

Sunday 22nd December 2019
quotequote all
It was all done in the dark so the only external images possible were infra red.

Beati Dogu

8,896 posts

140 months

Sunday 22nd December 2019
quotequote all
Down safely, right in the middle of the target area:



Despite its shorter than planned mission, they reckon they'll have 85-90% of the test data they need after going over the telemetry.

I have a feeling NASA aren't going to insist on a new unmanned test before they fly people it in.

The soonest they can launch one of these again would be in 3 months apparently.

Eric Mc

122,053 posts

266 months

Sunday 22nd December 2019
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Barring any revelations about some unforeseen problems, I'd certainly be hoping the next flight should be manned.

AnotherClarkey

3,602 posts

190 months

Sunday 22nd December 2019
quotequote all
Eric Mc said:
Barring any revelations about some unforeseen problems, I'd certainly be hoping the next flight should be manned.
Don't they have to complete an in-flight abort test?

Petrus1983

8,759 posts

163 months

Sunday 22nd December 2019
quotequote all
Eric Mc said:
Barring any revelations about some unforeseen problems, I'd certainly be hoping the next flight should be manned.
Whilst I think you’re right - I massively disagree with it.

RobDickinson

31,343 posts

255 months

Sunday 22nd December 2019
quotequote all
AnotherClarkey said:
Eric Mc said:
Barring any revelations about some unforeseen problems, I'd certainly be hoping the next flight should be manned.
Don't they have to complete an in-flight abort test?
No, Boeing have opted to certify this using paperwork rather than an in practice test.

IMO trusting their certification process is madness at the moment.

AnotherClarkey

3,602 posts

190 months

Sunday 22nd December 2019
quotequote all
RobDickinson said:
AnotherClarkey said:
Eric Mc said:
Barring any revelations about some unforeseen problems, I'd certainly be hoping the next flight should be manned.
Don't they have to complete an in-flight abort test?
No, Boeing have opted to certify this using paperwork rather than an in practice test.

IMO trusting their certification process is madness at the moment.
Yes, sounds distinctly dodgy in the current climate, especially after the not inconsiderable hiccough in this mission.