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#100
by
Galactic Penguin SST
on 28 Sep, 2013 05:52
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Has a launch timeline for this launch been ever released? It's 35 hours till liftoff....
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#101
by
corrodedNut
on 28 Sep, 2013 12:57
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As I didn't see it posted here yet, the mission patch for Falcon 9 Flight 6.
I guess there's only one way that four-leaf clover will ever go away...I'm hoping it never does!
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#102
by
jabe
on 28 Sep, 2013 13:24
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well
check out Cmd hadfield
tweet..
never seen that pic before..is it new?
jb
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#103
by
Silmfeanor
on 28 Sep, 2013 14:01
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#104
by
jabe
on 28 Sep, 2013 14:11
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that explains why i missed the pic..dam holidays and no internet lol
jb
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#105
by
guckyfan
on 28 Sep, 2013 22:02
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American Islander is heading toward recovery zone.
That's certainly interesting. But what can that ship do? It is not big enough to salvage the stage, I think. Maybe it can anchor and stabilize it until a bigger salvage ship arrives?
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#106
by
jabe
on 28 Sep, 2013 22:03
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i wonder what gear they have to help get the 1st stage?
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#107
by
Robotbeat
on 28 Sep, 2013 22:06
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American Islander is heading toward recovery zone.
That's certainly interesting. But what can that ship do? It is not big enough to salvage the stage, I think. Maybe it can anchor and stabilize it until a bigger salvage ship arrives?
Why not? Just have to tow it!
It's this big:
http://spacexlaunch.zenfolio.com/p278054961/h499c29de#h499c29deAnd the smaller it is, the cheaper it is to operate.
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#108
by
modemeagle
on 28 Sep, 2013 22:06
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It may be big enough to tow it back SRB style or just for on the ground recording. This is speculation based on the direction a ship that SpaceX has used in the past is heading.
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#109
by
Jason1701
on 28 Sep, 2013 22:25
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#110
by
corrodedNut
on 28 Sep, 2013 22:38
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i wonder what gear they have to help get the 1st stage?
They might still have this thing lying around...
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#111
by
ugordan
on 28 Sep, 2013 22:39
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From the update thread:
SFN has the timelines:
http://spaceflightnow.com/falcon9/006/countdowntimeline.html
http://www.spaceflightnow.com/falcon9/006/launchtimeline.html
However, they report two of the first stage's engines shutting down moments before the others, which I'm pretty sure is wrong. The engines on v1.1 throttle down together and shut down almost at the same time.
Hmm. Also, why such a long delay between SECO and payload separation (cca 5 minutes)?
The countdown timeline has suspect entries as well - says guidance align and terminal count autosequence both start at T-6 min. My recollection is terminal count used to start at T-10 min. Launch director and RCO both reporting go/no-go at T-2:00 min? Wasn't the LD/MD call done at T-2:30 in the past?
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#112
by
uko
on 28 Sep, 2013 22:39
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#113
by
Kabloona
on 28 Sep, 2013 22:52
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Also, can anyone confirm or deny the speculation that they will restart S2 and burn to depletion in order to characterize M1DVac performance? This possibility was discussed here some time ago but no one seemed to know for sure what the plan was.
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#114
by
ugordan
on 28 Sep, 2013 22:56
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SFN now also has the press kit:
http://www.spaceflightnow.com/falcon9/006/UpgradedF9DemoMission_PressKit.pdf
"Around two and a half minutes into the flight, two of the first-stage engines will shut down to reduce the rocket’s acceleration."
Vs. another quote further down:
"The first stage engines are gradually throttled near the end of first-stage flight to limit launch vehicle acceleration as the rocket’s mass decreases with the burning of fuel."
Also, inconsistent durations of the 2nd stage burn in different places in the kit - 5m57s vs. 6m17s ?
In fact, the whole "Flight" section is suspiciously similar to the CRS-1 press kit.
No target orbital parameters or other juicy stuff. The highlight seems to be a couple of unseen pictures, one also showing the individual engine RP-1 feedlines coming directly off the tank bottom as opposed to the "octopus" on v1.0.
I wonder if the flight plan includes any throttling down for transsonic flight? Judging from the stated max Q timing, this thing is likely to have the same liftoff acceleration as v1.0. Which, given the vehicle is taller, should make it
look slower.
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#115
by
Elvis in Space
on 28 Sep, 2013 23:12
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American Islander is heading toward recovery zone.
That's certainly interesting. But what can that ship do? It is not big enough to salvage the stage, I think. Maybe it can anchor and stabilize it until a bigger salvage ship arrives?
Why not? Just have to tow it!
It's this big:
http://spacexlaunch.zenfolio.com/p278054961/h499c29de#h499c29de
And the smaller it is, the cheaper it is to operate.
Right and it can carry divers to attach floats, salvage pontoons, something like that. I expect that Spacex isn't planning on finding too much anyway. If they wanted to put it on a barge they would need something big enough for a substantial crane as well. I bet they don't try this too often before they are attempting to land on land.
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#116
by
JBF
on 28 Sep, 2013 23:17
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It also might be a case of liability as well. Since they are going to try to land it in water and can't guarantee it will sink it becomes a navigation hazard that SpaceX is responsible for.
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#117
by
butters
on 28 Sep, 2013 23:23
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Judging from the stated max Q timing, this thing is likely to have the same liftoff acceleration as v1.0. Which, given the vehicle is taller, should make it look slower.
Even with a substantially under-weight payload like CASSIOPE?
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#118
by
Robotbeat
on 28 Sep, 2013 23:24
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Elvis: "I expect that Spacex isn't planning on finding too much anyway."
Are you unaware that they are going to attempt a soft-landing on the water?
They may expect only a 10% of this happening successfully, but still.
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#119
by
ugordan
on 28 Sep, 2013 23:29
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Judging from the stated max Q timing, this thing is likely to have the same liftoff acceleration as v1.0. Which, given the vehicle is taller, should make it look slower.
Even with a substantially under-weight payload like CASSIOPE?
Well, with a vehicle in the 500 tonne GLOW range, a tonne or two here and there doesn't make much difference at liftoff.
