Author Topic: LIVE: SpaceX - Falcon I (Mk.II) NET March 20 (Attempt 2) (Read 287167 times)

braddock · « **Reply #160 on:** 03/20/2007 11:12 pm »

Abort on chamber pressure. .1% low. They are looking at the possibility of recycling now.

William Graham · « **Reply #161 on:** 03/20/2007 11:13 pm »

Is there any chance of turning it around today if it is not a major issue, or is this like a Shuttle RSLS, where rollback and inspection will be needed before clearance is given.

EDIT: Sorry, my connection is slow, I missed the earlier post on this.

Avron · « **Reply #162 on:** 03/20/2007 11:13 pm »

Can they try again today?

DaveS · « **Reply #163 on:** 03/20/2007 11:14 pm »

Quote

GW_Simulations - 21/3/2007 1:13 AM

Is there any chance of turning it around today if it is not a major issue, or is this like a Shuttle RSLS, where rollback and inspection will be needed before clearance is given.

SSME replacement can be done at the pad.

braddock · « **Reply #164 on:** 03/20/2007 11:14 pm »

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Avron - 20/3/2007 8:13 PM

Can they try again today?

They want to, and are evaluating it now, according to Gwynne.

rumble · « **Reply #165 on:** 03/20/2007 11:15 pm »

It sounded like the same guy that said "1psi" also said "we should just adjust & [try it again]" (paraphrased...can't remember)

Alpha Control · « **Reply #166 on:** 03/20/2007 11:15 pm »

The person who dropped the "F-bomb" also made a reference to a large amount of water. I assume this has to do with the water deluge system that was turned on close to T-0. Was the amount of water unexpected perhaps?

Avron · « **Reply #167 on:** 03/20/2007 11:16 pm »

No constraints to t-11.. wow..

braddock · « **Reply #168 on:** 03/20/2007 11:16 pm »

"We are looking at a 10 minutes recycle. Looks like we are going to try this again today."

qprmeteor · « **Reply #169 on:** 03/20/2007 11:16 pm »

Recycle back to T-11 min.

Satori · « **Reply #170 on:** 03/20/2007 11:17 pm »

Quote

braddock - 20/3/2007 7:14 PM

Quote
Avron - 20/3/2007 8:13 PM

Can they try again today?

They want to, and are evaluating it now, according to Gwynne.

Has this been done before with any other launcher? That is, to recycle the count after main engine ignition and abort?

ilia25 · « **Reply #171 on:** 03/20/2007 11:17 pm »

I can't belive, they are going for retry after the engine was fired?

braddock · « **Reply #172 on:** 03/20/2007 11:18 pm »

The abort was possible because of the hold-down arms, which monitor pressure before release. Hold down lasts about 1 or 1.5 seconds (Gwynne believes).

uko · « **Reply #173 on:** 03/20/2007 11:18 pm »

Damn.. SpaceX knows how to make launching rockets exciting to us too

Skinny · « **Reply #174 on:** 03/20/2007 11:19 pm »

braddock · « **Reply #175 on:** 03/20/2007 11:19 pm »

Quote

Alpha Control - 20/3/2007 8:15 PM

The person who dropped the "F-bomb" also made a reference to a large amount of water.

Gwynne apologized for the colorful language. They apparently had hte audio on the wrong net, because the control room didn't hear that.

Gary · « **Reply #176 on:** 03/20/2007 11:20 pm »

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ilia25 - 21/3/2007 1:17 AM

I can't belive, they are going for retry after the engine was fired?

Me neither. I would have thought the engine would need cleaning before it could be refired. I guess SpaceX Merlin engine is not as sensitive.

braddock · « **Reply #177 on:** 03/20/2007 11:21 pm »

Gwynne mistakenly said we were at T-10. We are actually at a hold. Topping off the tanks and getting the pressure up.

TJL · « **Reply #178 on:** 03/20/2007 11:21 pm »

This has to be a first!

paulhbell07 · « **Reply #179 on:** 03/20/2007 11:22 pm »

Has spaceX got other cameras watching the launch, from a distance. The close up camera went white with the exhaust, when the engine lit.