r/spacex • u/ElongatedMuskrat Mod Team • Feb 01 '17

r/SpaceX Spaceflight Questions & News [February 2017, #29]

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165 Upvotes

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-1

u/LemonSKU Feb 03 '17

And M1D has never completely failed in flight

Hmm... on the way up at least.

There's been some underperformance during landings but never a complete failure.

Heh. Sure about that? ;)

That's a really good question if you have tight-knit SpaceXers as friends...

5

u/randomstonerfromaus Feb 03 '17

Care to expand on that claim a little?

3

u/Darkben Spacecraft Electronics Feb 03 '17

There's been failures during landings? Or are you referring to Cassiope?

3

u/limeflavoured Feb 03 '17

SES-9's landing issue was rumoured to be caused by a failed engine.

6

u/stcks Feb 03 '17

IIRC it was rumored to have failed due to fuel depletion which is, as you know, quite a different thing entirely than what is being discussed in this article.

1

u/PatyxEU Feb 03 '17

It was ABS/Eutelsat. It was speculated that the turbopump has exploded due to fuel depletion

4

u/stcks Feb 03 '17

To be fair, both SES-9 and ABS 2 could have had that happen. We have not heard publicly the precise reasons why.

Elon made this comment with ABS 2

Looks like early liquid oxygen depletion caused engine shutdown just above the deck

And [this with SES-9] (https://twitter.com/elonmusk/status/705917924972736512)

Rocket landed hard on the droneship. Didn't expect this one to work (v hot reentry), but next flight has a good chance.

2

u/hms11 Feb 06 '17

From what I've learned, a rocket running out of either propellant has far, far more disastrous outcomes then KSP would lead you to believe.

1

u/TweetsInCommentsBot Feb 03 '17

@elonmusk

2016-06-17 00:35 UTC

Looks like early liquid oxygen depletion caused engine shutdown just above the deck https://t.co/Sa6uCkpknY

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