Author Topic: SpaceX Falcon Heavy Demo - Discussion and Speculation  (Read 243622 times)

Offline rosbif73

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #60 on: 02/08/2017 02:50 pm »
The side boosters are identical in every way, they'll be landing in the same location: LZ-1. In case you missed it, there are now concrete plans for expansion there that entails two new landing pads. The original comment is here.

What we don't seem to have in the documents linked from that comment is a timescale for constructing those two new pads. Do we know whether they will be built in time for the first FH launch?

Offline gongora

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #61 on: 02/08/2017 03:00 pm »
The side boosters are identical in every way, they'll be landing in the same location: LZ-1. In case you missed it, there are now concrete plans for expansion there that entails two new landing pads. The original comment is here.

What we don't seem to have in the documents linked from that comment is a timescale for constructing those two new pads. Do we know whether they will be built in time for the first FH launch?

We don't know that yet.  It's possible they wouldn't be built in time (kinda depends on when FH actually launches).

Offline ChrisGebhardt

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #62 on: 02/08/2017 03:59 pm »
The side boosters are identical in every way, they'll be landing in the same location: LZ-1. In case you missed it, there are now concrete plans for expansion there that entails two new landing pads. The original comment is here.

What we don't seem to have in the documents linked from that comment is a timescale for constructing those two new pads. Do we know whether they will be built in time for the first FH launch?

We don't know that yet.  It's possible they wouldn't be built in time (kinda depends on when FH actually launches).

Has the environmental impact report been finalized yet?  That's a very much needed step before anything else remotely related to permits can begin.

Offline sghill

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #63 on: 02/08/2017 06:22 pm »
The side boosters are identical in every way, they'll be landing in the same location: LZ-1. In case you missed it, there are now concrete plans for expansion there that entails two new landing pads. The original comment is here.

What we don't seem to have in the documents linked from that comment is a timescale for constructing those two new pads. Do we know whether they will be built in time for the first FH launch?

We don't know that yet.  It's possible they wouldn't be built in time (kinda depends on when FH actually launches).

Has the environmental impact report been finalized yet?  That's a very much needed step before anything else remotely related to permits can begin.

There is now a FONSI for the expanded configuration.  It is the final approval.
Bring the thunder!

Offline Flying Beaver

Its real. It really is real.  ;D

https://imgur.com/a/Vbxrx#zPdInH5

« Last Edit: 02/08/2017 06:47 pm by Flying Beaver »
Watched B1019 land in person 21/12/2015.

Offline baldusi

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #65 on: 02/08/2017 06:53 pm »
Wouldn't they have to do a standard fairing payload to satisfy the Air Force qualifications of consecutive successful flights using common configuration?

I would think they could do a direct GEO insertion with a mass simulator. That would certainly demonstrate a "talent" few present day launch systems have.

Would seem they have sufficient fairing demonstrations to satisfy anyone interested.  After center stage drops off, second stage is as already demonstrated dozens of times.

Problem with delivering a mass simulator to GEO is what do you do next... leave it there?

Exactly. Besides which, the paperwork to get a GEO "slot" assigned takes years; they are limited, much in demand, and subject to a lot of competition among national telecom entities via the ITU.
 
(...)

You never put a satellite on GEO. You put it on the graveyard orbit +200km up. Then the satellite maneuvers down. If anything fails you simply add garbage to the graveyard. Btw, the standard "stage disposal" at those altitudes is escape trajectory.
A "GEO" delivery with disposal to the moon would be a much more interesting mission. If you could deliver 200kg to TLI as a GEO "rideshare", you could enable a lot of cheap Moon missions.

Offline mr. mark

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #66 on: 02/08/2017 06:56 pm »
There it is! Let it roll, down the highway...

Offline BruceM

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #67 on: 02/08/2017 08:23 pm »
Have seen no discussion on the disposition of the 3 FH first stages.  Guess we can assume one will return to LZ1 and OCISLY will catch another.  Presumably the third will travel too far east for recovery this time but can still wonder if JRTI were here...  -- Has anyone checked the docks in LA?

The side boosters are identical in every way, they'll be landing in the same location: LZ-1. In case you missed it, there are now concrete plans for expansion there that entails two new landing pads. The original comment is here.

Whether or not the center core can RTLS will be determined by the payload and destination orbit, neither of which are known right now.

Thanks for your good thoughts, but no I did not miss it.  Was referring specifically to the upcoming FH Demo flight.  Since, IMHO, the two new adjoining pads will not be ready for that flight SX must make other arrangements.  Seems likely one of the side boosters will land at LZ1 and probably one will be caught by OCISLY but would be glad if someone more knowledgeable than me might confirm this.

Also, and I know this is a really long shot, but there was some discussion in another thread (forget which at the moment) wondering why their Vandenburg pad is not being used from Jan until at least April.  SX certainly knows its schedule and we also know they sometimes like to make big statements (backed up by big actions).  Wouldn't it be really cool if JRTI was traveling around to the Atlantic to receive the third S1 from this launch?  (We can always dream).  I'll be ecstatic if they just land two, however. ;D   

Late note: guess this last would be impossible by the time FH launches -- but it's still fun to dream.
« Last Edit: 02/08/2017 08:37 pm by BruceM »

Offline old_sellsword

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #68 on: 02/08/2017 08:28 pm »
Since the two new adjoining pads will not be ready for that flight...

We don't know that to be the case. Right now the long pole is still pad readiness. Pouring concrete shouldn't take nearly as long as installing six more hold down clamps at 39A.

Offline BruceM

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #69 on: 02/08/2017 08:38 pm »
Since the two new adjoining pads will not be ready for that flight...

We don't know that to be the case. Right now the long pole is still pad readiness. Pouring concrete shouldn't take nearly as long as installing six more hold down clamps at 39A.

You are right -- was just trying to correct it.  Thanks.

Offline AncientU

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #70 on: 02/08/2017 08:44 pm »
Its real. It really is real.  ;D

https://imgur.com/a/Vbxrx#zPdInH5

So, can we finally dispense with the paper rocket nonsense?
"If we shared everything [we are working on] people would think we are insane!"
-- SpaceX friend of mlindner

Offline bstrong

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #71 on: 02/08/2017 08:52 pm »
Since the two new adjoining pads will not be ready for that flight...

We don't know that to be the case. Right now the long pole is still pad readiness. Pouring concrete shouldn't take nearly as long as installing six more hold down clamps at 39A.

We heard a while back that they couldn't do any ground clearing during scrub jay nesting season, which is March through June. Unless they get started very soon, the landing pads could still wind up being a constraint.

Offline Kaputnik

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #72 on: 02/08/2017 09:05 pm »
Its real. It really is real.  ;D

https://imgur.com/a/Vbxrx#zPdInH5



I wish I could repeat what my wife said when she saw that photo... but I was told this is a family friendly forum :D
"I don't care what anything was DESIGNED to do, I care about what it CAN do"- Gene Kranz

Offline IanThePineapple

I'm honestly guessing August or September, possibly October for FH Demo. They need at least 1 extra pad to recover the boosters and let the core land on OCISLY in the worst-case. I would guess if they are really trying to launch FH ASAP, they'd build pad two and then build pad three after pad two.

Offline RemoveBeforeFlight

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #74 on: 02/08/2017 09:21 pm »
I wonder whether SpaceX might worry that a circumlunar Dragon flight, cool though it would be, if it's possible, would embarrass NASA.  Not a good idea to embarrass your largest customer.

SpaceX is planning to send the same spacecraft all the way to Mars three years from now next year, with help from NASA. Why would there be any embarrassment about a lunar flyby?

Matthew


There, fixed that for ya. I've been informed that 2018 is off the table. Remember, 2018 was only a NET.

Is your source reliable or close to the program? We have heard nothing about this until just now.

Offline tleski

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #75 on: 02/08/2017 09:39 pm »
Since the two new adjoining pads will not be ready for that flight...

We don't know that to be the case. Right now the long pole is still pad readiness. Pouring concrete shouldn't take nearly as long as installing six more hold down clamps at 39A.

We heard a while back that they couldn't do any ground clearing during scrub jay nesting season, which is March through June. Unless they get started very soon, the landing pads could still wind up being a constraint.

They may already have started clearing ground for the new pads, we don't know. Once it is cleared they would probably not need to worry about the nesting season. Hopefully, we will find out soon.

Offline IanThePineapple

From what I see on TerraServer imagery from October, most or all of the needed groundspace is cleared for the North pad, perhaps they are beginning construction now?

Online Chris Bergin

Is that speculation or confirmed?

Speculation. We're still with the 2018 plan from my chair.
« Last Edit: 02/08/2017 10:20 pm by Chris Bergin »
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Online dglow

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #78 on: 02/08/2017 10:21 pm »
From what I see on TerraServer imagery from October, most or all of the needed groundspace is cleared for the North pad, perhaps they are beginning construction now?

No it isn't. Compare TerraServer with the images in this post.

Offline JPL-Jones

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Re: SpaceX Falcon Heavy - Demo Mission - May 2017 - Discussion
« Reply #79 on: 02/08/2017 11:26 pm »
We have another meeting with them in March. This is still a 2018 shot. The Mars windows are the foundation of the timing. The priority they placed on this mission when we first met with them was huge. I saw one of the big suit NASA managers in L2 stressing that when he first posted about it months before anyone even thought NASA and SpaceX would go for this cooperation on a 2018 Mars mission.

Of course if they can make the schedule is another matter and it's a safe bet they can't, so I'm sure that's where the comment came from, a safe bet to cash in next year via natural delays. But they are trying. SpaceX has not wiped it off the table. They are also working the 2020 Dragon, but that's not going to be a repeat, that's a whole new mission and one home run statement of intent.

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