Author Topic: SpaceX Falcon 9 : Iridium NEXT Flight 4 : December 22/23, 2017 : Discussion  (Read 81525 times)

Offline TorenAltair

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Imho, not everything is about money or costs but of changing attitude in general to the Earth system (ecosphere, biosphere, hydrosphere, atmosphere etc.). We're basically killing only ourselves, Earth will harbor life long time after we'll be vanished. Just my opinion.

Offline HVM

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And Scott get, -yet again, basic stuff wrong, not even put timing of the staging right. Also irregular part of the second stage's plume is due the first stage's short boostback burn. Blah.

Ah, sorry I'm just grumpy, and both of the TMRO and Scott's Tube annoy me for some reason. I should like all space related stuff in YouTube (there not so many space related channel in there) but no.
« Last Edit: 12/25/2017 07:58 AM by HVM »

Online catdlr

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And Scott get, -yet again, basic stuff wrong, not even put timing of the staging right. Also irregular part of the second stage's plume is due the first stage's short boostback burn. Blah.

Sorry, that will be my last post from him.  Thanks for the critique HMV.  Post deleted.
« Last Edit: 12/25/2017 07:28 AM by catdlr »
Tony De La Rosa

Offline HVM

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So now that feel guilty, here is Scott Manley's vid.


Everyday Astronaut's

Offline Llian Rhydderch

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I don't think the "Should ..." question is really for us. 

Normative questions like that are best left for the private entity that made the thing, owns the thing, and can consider all of the costs associated with the recover/DontRecover decision.

SpaceX made the decision, for quite likely a complex set of many things that made up their rationale, including that it was apparently a block 3 booster, ...

They own the rocket, and incur the costs of recovery.  They get to decide. 

In this age of recycle and environment considerations, and Blue Planet II, I find dumping a rocket that can be recovered leaving me conflicted.

OTOH think of all the diesel they saved by not steaming out there with an ASDS...
But yeah I kind of agree with you. Single-use launch vehicles are starting to look like how we used to do this...
In a strange way, the idea of dumping a reused booster actually validates the economics of reuse.

Recalling the days when people said "They'll never be able to recover them" which quickly turned into "They can recover them, but they won't be able to refly them." Now, they're so successful at recovery that they can actually make a business decision about expending a booster after one reflight.

Those kinds of economic profit-and-loss decisions are what you'd expect if reuse was actually about profitability and not just one charismatic rich guy's obsession.

Should the rocket be dumped in the sea or recovered then scrapped?
Re arguments from authority on NSF:  "no one is exempt from error, and errors of authority are usually the worst kind.  Taking your word for things without question is no different than a bracket design not being tested because the designer was an old hand."
"You would actually save yourself time and effort if you were to use evidence and logic to make your points instead of wrapping yourself in the royal mantle of authority.  The approach only works on sheep, not inquisitive, intelligent people."

Offline AncientU

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"If we shared everything [we are working on] people would think we are insane!"
-- SpaceX friend of mlindner

Offline jpo234

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You want to be inspired by things. You want to wake up in the morning and think the future is going to be great. That's what being a spacefaring civilization is all about. It's about believing in the future and believing the future will be better than the past. And I can't think of anything more exciting than being out there among the stars.

Offline Comga

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https://www.nasaspaceflight.com/2017/11/iridium-next-4-december-launch-vandenberg/
Quote
Iridium NEXT-4 is scheduled to launch from SLC-4E on Vandenberg Air Force Base No Earlier Than (NET) 22 December 2017 at an instantaneous launch time of 17:32 PST (01:32 UTC on 23 December).

So SpaceX held that NET launch date for most of a month at least.
An improvement from their general track record
A fourth flight of its type on a "flight proven" booster
This bodes well for working through their backlog.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Online kdhilliard

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...
So SpaceX held that NET launch date for most of a month at least.
...

Try "for over two months"!
And the presser is out:
...

MCLEAN, Va. October 19, 2017 - Iridium Communications Inc. (NASDAQ: IRDM) announced today that the fourth Iridium NEXT launch has been targeted by SpaceX for December 22, 2017 at 5:26 p.m. PT [1:26 a.m. UTC on Dec. 23], from Vandenberg Air Force Base.  ...

...
This bodes well for working through their backlog.

Yes indeed!  Though, as much as SpaceX has accomplished in the last year, 3 September 3016 wasn't so long ago.  I share the thoughts of those folks in the FH thread expecting to hold their breath until those boosters are well clear of 39A, but truth be told, my face turns blue just about every launch.
« Last Edit: 12/31/2017 03:32 PM by kdhilliard »

Offline Kaputnik

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This is incredible:
http://www.mirror.co.uk/news/world-news/remarkable-time-lapse-video-more-11772088

I love how the media report on space stuff. This article says that the Falcon 9 'aircraft' will soon require less refurbishment between flights- without mentioning that the mere idea of reflying a rocket was still unknown less than a year ago.
Waiting for joy and raptor

Online Norm38

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Haven't seen this one posted yet. The LA skyline in the distance gives a nice sense of scale.

Offline Machdiamond

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This was posted in the update thread, see "drone footage" in reply #270 with a link to the original video from Doug Ellison.

It wasn't imbedded so it was easy to miss though.

Definitely one of the best.

Online catdlr

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This was posted in the update thread, see "drone footage" in reply #270 with a link to the original video from Doug Ellison.

It wasn't imbedded so it was easy to miss though.

Definitely one of the best.

and the original by Doug is in 4K.
Tony De La Rosa

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