Author Topic: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion Thread 1  (Read 586648 times)

Offline woods170

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #500 on: 12/23/2017 05:44 PM »
Because Ariane 5 doesn't care about recovering the side boosters?


Ariane 5 boosters are recovered.

Not quite correct Chuck. The booster for Ariane 5 have been recovered only a few times. It was for post-flight inspection to validate the design.

Standard MO for Ariane 5 boosters is to fall into the drink and sink.


But not reused?
Quote
The possibility of refurbishing and reusing the recovered boosters has, however, been rejected. It is currently considered a non-cost-effective option because of the specific design and reliability complications that this would incur. It is currently planned to recover four boosters per year.
(from http://www.esa.int/esapub/bulletin/bullet85/gigo85.htm cited above by nacnud.)

Why bother? Seriously. There might be some minor learnings but if you're not even going to TRY to reuse them, it's just a big boondoggle.  Some contracts must have been let and then found to be too expensive to cancel, or something.

Recovery of the boosters proved to be extremely troublesome. The ELS package was experimental and unreliable. The very first recovery attempt failed completely because of that.

Even the planned four retrievals per year went away quickly after the first successful recovery validated the basic design of the boosters.

The fact that no humans were going to fly on Ariane 5 (after Hermes was cancelled) also aided the decision to not recover the boosters after the initial sets.
« Last Edit: 12/23/2017 05:50 PM by woods170 »

Offline FutureSpaceTourist

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #501 on: 12/26/2017 03:31 PM »
Usual amazing work by Oli Braun:

Quote
Some FH artwork :) available as high res prints anytime soon :) @NASASpaceflight @FHeavyBooster @SpaceXPad39A

https://twitter.com/oli_braun/status/945647229456527360

Offline IanThePineapple

Usual amazing work by Oli Braun:

Quote
Some FH artwork :) available as high res prints anytime soon :) @NASASpaceflight @FHeavyBooster @SpaceXPad39A

https://twitter.com/oli_braun/status/945647229456527360

That guy is amazing
« Last Edit: 12/26/2017 04:03 PM by IanThePineapple »

Offline Johnnyhinbos

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #503 on: 12/26/2017 04:13 PM »
Wow - FH payload picture on the update thread. Thatís a First I believe! You can see the TEL inside. Does this mean a static fire with payload attached??
John Hanzl. Author, action / adventure www.johnhanzl.com

Offline dnavas

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #504 on: 12/26/2017 04:18 PM »
https://twitter.com/elonmusk/status/943420026593337344

@elonmusk
Falcon Heavy at the Cape

As a tinker-toy construct, it seemed so obvious, but faced with the reality, I wonder how I ever thought this was going to work.  Imagining the staging is giving me the heebie jeebies.  Perhaps particularly after having reviewed Falcon 1 launches....

Offline IanThePineapple

Wow - FH payload picture on the update thread. Thatís a First I believe! You can see the TEL inside. Does this mean a static fire with payload attached??

Possibly!

Either that or they're moving it there to free up space in the integration facility.

Offline dnavas

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #506 on: 12/26/2017 04:29 PM »
Does this mean a static fire with payload attached??

Maybe just pictures before WDR?  Particularly if you can nab Zuma and FH on pads at the same time?

Offline WH2OPaddler

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #507 on: 12/26/2017 05:16 PM »
Now that the 1st FH is assembled, any word on when the static fire is planned?

Now that the 1st FH is assembled, any word on when the static fire is planned?

NET early January.

Offline russianhalo117

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #509 on: 12/26/2017 05:32 PM »
Now that the 1st FH is assembled, any word on when the static fire is planned?
First rollout may occur before the end of the year for a dry systems test with the fully integrated stack.
« Last Edit: 12/26/2017 05:37 PM by russianhalo117 »

Offline pospa

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #510 on: 12/26/2017 07:06 PM »
Great find. Higher res attached.

I would say we can also see for the first time FH integrated to TEL in the background darkness of HIF. :)
« Last Edit: 12/26/2017 07:11 PM by pospa »

Offline douglas100

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #511 on: 12/26/2017 07:43 PM »
Looks like there's another single core as well, parked to the right of the FH/TEL.
Douglas Clark

Offline douglas100

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #512 on: 12/26/2017 07:47 PM »
Does this mean a static fire with payload attached??

Maybe just pictures before WDR?  Particularly if you can nab Zuma and FH on pads at the same time?

No reason why they can't do the static fire fully assembled. It's not like it's a customer's payload or anything. If they lose the vehicle on the pad then the loss of the Tesla is the least of their worries.
Douglas Clark

Offline cro-magnon gramps

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #513 on: 12/26/2017 08:06 PM »
I created a rough time line on Friday. The TEL integration was pre CHRISTMAS day with TEL fit check happening after boxing day. That led into a roll out around the weekend before NewYears Day. The static fire won't happen before ZUMA launches because they will be into pad Fit checks and the danger posed by an explosion on the pad at 39A. That leads to a Net  of Jan 11th to 15th for launch. AT LEAST that's my rationalization: :D
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Offline pospa

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #514 on: 12/26/2017 08:08 PM »
Looks like there's another single core as well, parked to the right of the FH/TEL.

That light ring is assembly jig only. No other boosters then FH in HIF right now.

Offline RocketLover0119

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #515 on: 12/26/2017 08:17 PM »
Also tried my attempt at removing the darkness from the photo

Great find. Higher res attached.

I would say we can also see for the first time FH integrated to TEL in the background darkness of HIF. :)
"The Falcon has landed"

Offline Flying Beaver

Yeah.. Not getting any better than this :P.
Watched B1019 land in person 21/12/2015.

Offline clongton

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #517 on: 12/26/2017 09:16 PM »
Now that the 1st FH is assembled, any word on when the static fire is planned?
First rollout may occur before the end of the year for a dry systems test with the fully integrated stack.

Elon said in a tweet (I'll have to look for it now) that **IF** the WDR goes all the way without a hitch that they would proceed immediately to the static fire.
That's a big if for a new vehicle.
Chuck - DIRECT co-founder
I started my career on the Saturn-V F-1A engine

Offline russianhalo117

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #518 on: 12/26/2017 09:22 PM »
Now that the 1st FH is assembled, any word on when the static fire is planned?
First rollout may occur before the end of the year for a dry systems test with the fully integrated stack.

Elon said in a tweet (I'll have to look for it now) that **IF** the WDR goes all the way without a hitch that they would proceed immediately to the static fire.
That's a big if for a new vehicle.
yep Tweets are a bit behind L2.

Offline Norm38

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Re: SpaceX FH : Falcon Heavy Demo : early 2018 : Discussion
« Reply #519 on: 12/27/2017 05:28 PM »
It is a new vehicle and it isn't. They have to fuel the three cores separately, procedures for that should be the same as for F9. Did they build two extra tank farms, meaning the three cores are completely separate?  Or one big farm?  Triple flow that splits three ways adds complexity over separate feeds. But once the vehicle is fueled they should be able to quickly static fire. What would prevent that?

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