Author Topic: Orbital's Antares Discussion Thread (to Hotfire Test and debut flight)  (Read 46988 times)

Online Chris Bergin

Specific discussion thread for Antares flow to hotfire and Antares' Debut Flight.

FOR THE SPECIFIC UPDATES (NOT Discussions), SEE THIS THREAD:
http://forum.nasaspaceflight.com/index.php?topic=30921.0

Please note the difference between this thread and the update thread.

For everything else, here's the Party Thread:
http://forum.nasaspaceflight.com/index.php?topic=30923.0

Resources:

Orbital GENERAL Forum Section:
http://forum.nasaspaceflight.com/index.php?board=46.0

Orbital (Antares/Cygnus) News Articles (Recent):
http://www.nasaspaceflight.com/tag/antares/


L2 Antares/Cygnus Section:
http://forum.nasaspaceflight.com/index.php?action=tags&tags=antares
(Includes updates, videos, graphics, presentations and specific interactive posts).

As always, stay on topic and use the correct threads.
« Last Edit: 01/22/2013 06:06 pm by Chris Bergin »
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Offline Lars_J

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Exciting... But does anyone know any more detail time frame for the hot fire, other than sometime in February?

Online Chris Bergin

Not yet (as of yesterday), but we'll be eager to know too.

Probably relates to the final cold test in the coming days and the results of it.
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Offline Joffan

I'll be surprised (and impressed) if the COTS 2+ demo goes ahead before July. Similarly I think Orbital's CRS-1 might just about sneak into 2013, but not Q3.
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Offline yg1968

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Good article, Chris. It's great to have updates on Orbital.
« Last Edit: 01/22/2013 09:47 pm by yg1968 »

Offline Andy DC

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Good article, Chris. It'S great to have updates on Orbital.

Agreed. Another new vehicle and spacecraft in the mix is very positive.

Online Chris Bergin

Thanks YG and Andy! The good thing about these baseline style articles is it usually shakes the tree for more info.
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Offline mr. mark

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I'll be surprised (and impressed) if the COTS 2+ demo goes ahead before July. Similarly I think Orbital's CRS-1 might just about sneak into 2013, but not Q3.
It's already 2013 :o think you meant sneak into 2014.

Offline Lurker Steve

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I'll be surprised (and impressed) if the COTS 2+ demo goes ahead before July. Similarly I think Orbital's CRS-1 might just about sneak into 2013, but not Q3.
It's already 2013 :o think you meant sneak into 2014.

No, that would be slipping. I think his estimate is Q4.

Offline Joffan

I'll be surprised (and impressed) if the COTS 2+ demo goes ahead before July. Similarly I think Orbital's CRS-1 might just about sneak into 2013, but not Q3.
It's already 2013 :o think you meant sneak into 2014.
It's sometimes hard to convey these things with text only! No, I meant 2013, as Lurker Steve said, and in fact I was thinking Nov/Dec 2013, but please do share your opinion on future Antares activities timing... :)
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Offline mr. mark

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I think that there was a backlog of activities based on the launch site slip. The schedule though seems to be lining up now and I think that the schedule should be close to the projections.

Offline CNYMike

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Good luck to OSC during Antares' hot fire test and debut flight.
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Offline Prober

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Looking forward to the hot fire test.  Sure the excitement with Orbital will continue to build after that.

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Offline Salo

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http://www.nasa.gov/missions/highlights/schedule.html
Quote
Date: May 3
Mission: Orbital Sciences Corporation Test Flight
Launch Vehicle: Antares/Cygnus
Launch Site: Wallops Flight Facility, Va.
Launch Pad: 0A
Description: The Cygnus spacecraft is scheduled for a demonstration flight on an Orbital Antares launch vehicle under NASA's Commercial Orbital Transportation Services agreement with the company. Cygnus will make an attempt to rendezvous and berth with the International Space Station.

Offline yg1968

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Interesting presentation by Orbital (starts at 34 minutes of the video):
http://www.livestream.com/spaceuphouston/video?clipId=pla_4fa74cb3-ac14-4ee3-a953-d3cc4d5ff87c
« Last Edit: 02/11/2013 03:04 am by yg1968 »

Offline belegor

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This has been bugging me for a while:

Can someone tell me what the "7K" in "7K hot fire test" stands for?

Offline strangequark

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This has been bugging me for a while:

Can someone tell me what the "7K" in "7K hot fire test" stands for?

It's short for "7000", which is just a milestone number in someone's Gantt chart somewhere.

Offline belegor

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This has been bugging me for a while:

Can someone tell me what the "7K" in "7K hot fire test" stands for?

It's short for "7000", which is just a milestone number in someone's Gantt chart somewhere.

Ah, thanks a lot  :)

Offline Phyto

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Just finished reading Orbital tentatively realign Antares hot fire to next week following scrub, good article Chris. Well ahead of postings at the Orbital site.
The choice of the NK-33 has made me nervous for quite a while, though that hasn't been part of Orbital's reported problems as far as I know.
I decided to inform myself about the original engine by reading up on its history at http://www.aerospaceweb.org/question/spacecraft/q0196.shtml
Since both of ULA's rockets (Atlas V and Delta IV) have had good success with ex- & rebuilt Russian/Soviet engines.
Hopefully Orbital hasn't purchased the jinx attached to this engine that eliminated the Soviet Lunar Program.

Offline Jim

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Since both of ULA's rockets (Atlas V and Delta IV) have had good success with ex- & rebuilt Russian/Soviet engines.

Which engine on Delta IV is Russian/Soviet?  And which is one on Atlas is rebuilt?

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