23:57 UTC 4 150m

Starship SN5 finally hopped, 150m + horizontal translation from one
side of Hoppy to the other.

URL:https://www.teslarati.com/spacex-starship-sn5-hop-debut-success-mars/

That article has a link to LabPadre's camera 1, with the appropriate
delta-T. The direct link at
URL:https://www.youtube.com/watch?v=5QbM7Vsz3kg
will have enough of the stream to watch for several more hours , but
their channel has several good excerpts from different cameras.

Like discussion elsewhere of how much playing time is in a 3-hour
football broadcast, the live stream runs about 12 hours ... and the
flight about 50s.

URL:https://www.youtube.com/watch?v=TYAi2JJItgY from iGadgetPro has a
side-by-side from EverydayAstronaut and BocaChicaGal.

The landing legs look like little nibs, visible in the EA shot just
before the clouds obscure the view, and also visible in LabPadre's
Camera 3 view (wider view, so less detail). An animation from Elon's
reveal of SN4's bottom is part of the iGadget footage.

SpaceX's drone and thrust-structure clip shows the legs deploying quite
clearly.
URL:https://www.youtube.com/watch?v=s1HA9LlFNM0&feature=youtu.be

A big chunk of something departed the launch stand at the same time as
SN5, and there seemed to be some extraneous flame around the Raptor
piping as the descent view began, but everything looks pretty good
otherwise.

Will SN5 see more action before SN8 is ready? Not clear, but we can
expect a thorough inspection if not a tear-down before anything else
happens. (SN6 may already be a hanger queen.)

/dps

--
Maybe C282Y is simply one of the hangers-on, a groupie following a
future guitar god of the human genome: an allele with undiscovered
virtuosity, currently soloing in obscurity in Mom's garage.
Bradley Wertheim, theAtlantic.com, Jan 10 2013

JF Mezei asserted that:

However, in the landing video from within the engine cavity, one sees a
lot of yellow flanes starting as it nears the ground. Is this because
below a certain thrust level, the egines are less efficient? or is the
yellow just imporities near ground that are buened by the clean output
of engines?

There was also yellow in the brief external camera shot. But ISTR that
Falcon 9 stage 1 return and landing burns look similar, as the
slipstream pushes the flames up and around the stage.

/dps


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Well hung: curricle-hung in fact. Come sit by me and we'll test the
springs."
(Speculative fiction by H.Lacedaemonian.)

Lo, on the 8/6/2020, Snidely did proclaim ...
JF Mezei asserted that:

However, in the landing video from within the engine cavity, one sees a
lot of yellow flanes starting as it nears the ground. Is this because
below a certain thrust level, the egines are less efficient? or is the
yellow just imporities near ground that are buened by the clean output
of engines?

There was also yellow in the brief external camera shot. But ISTR that
Falcon 9 stage 1 return and landing burns look similar, as the slipstream
pushes the flames up and around the stage.


quote
Still, while it unequivocally proved that SpaceX is on the right track,
both the lead-up to Starship SN5’s hop and the hop itself hint that a
few kinks will still need to be worked out. Notably, during SN5’s hop,
part of Raptor engine SN27 appeared to catch fire at some point after
ignition, producing substantial flames that lasted for at least 10
seconds. For any rocket engine, an onboard fire is always a
possibility, but most engines are either designed to tolerate the
inhospitable environment they create or heavily insulated from it.
/quote

from
URL:https://www.teslarati.com/spacex-starship-sn5-second-hop-plans/
which discusses that SN5 may fly again, and that SN6 is expected to fly
despite the progress SN8 is making.

/dps

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JF Mezei blurted out:

So the fire on the engine was not normal then? Apart from debris flying
as it took off, that seemed to me like the biggest problem with the flight.

AFAICT, we have no official comment.

/dps

--
The presence of this syntax results from the fact that SQLite is really
a Tcl extension that has escaped into the wild.
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on 8/4/2020, Snidely supposed :

Will SN5 see more action before SN8 is ready? Not clear, but we can expect a
thorough inspection if not a tear-down before anything else happens. (SN6
may already be a hanger queen.)


I was definitely pessimistic about that. SN5 expected to refly, SN6
already on the pad, both expected to make multiple flights before SN8
tries skydiving.

It looks really wierd to see these birds being transported vertically.
Kind of like giant chess pieces.

URL:https://www.youtube.com/watch?v=vv9rSrCsHDg
URL:https://www.youtube.com/watch?v=_v09eOT2fUg

/dps

--
"That's a good sort of hectic, innit?"

" Very much so, and I'd recommend the haggis wontons."
-njm

Snidely noted that:
JF Mezei blurted out:

So the fire on the engine was not normal then? Apart from debris flying
as it took off, that seemed to me like the biggest problem with the flight.

AFAICT, we have no official comment.


But seems to be a much reduced problem compared to the Starhopper
flight:

quote
Raptor’s new crown comes roughly 18 months after Elon Musk revealed
that the engine had beaten the Soviet RD-270 full-flow staged
combustion (FFSC) with a higher sustained chamber pressure (~257 bar vs
255 bar). A few days later, the same Raptor went even further, cresting
the Russian RD-180 engine’s 257 bar operating pressure with a peak of
268 bar. Still, SpaceX needed 6-12 more months to refine Raptor into an
engine capable of operating even close to those pressures for more than
~10 seconds. In July and August 2019, Raptor engine SN6 flew twice on
Starhopper, culminating in a ~60-second, 150-meter hop that ended with
the engine nearly destroying itself seconds before landing.
/quote
URL:https://www.teslarati.com/spacex-raptor-engine-crushes-russian-record/

I think they've got an engine there.

/dps

--
"Inviting people to laugh with you while you are laughing at yourself
is a good thing to do, You may be a fool but you're the fool in
charge." -- Carl Reiner

Snidely formulated the question :
Starship SN5 finally hopped, 150m + horizontal translation from one side of
Hoppy to the other.

URL:https://www.teslarati.com/spacex-starship-sn5-hop-debut-success-mars/

That article has a link to LabPadre's camera 1, with the appropriate delta-T.
The direct link at
URL:https://www.youtube.com/watch?v=5QbM7Vsz3kg
will have enough of the stream to watch for several more hours , but their
channel has several good excerpts from different cameras.

Like discussion elsewhere of how much playing time is in a 3-hour football
broadcast, the live stream runs about 12 hours ... and the flight about 50s.

URL:https://www.youtube.com/watch?v=TYAi2JJItgY from iGadgetPro has a
side-by-side from EverydayAstronaut and BocaChicaGal.

The landing legs look like little nibs, visible in the EA shot just before
the clouds obscure the view, and also visible in LabPadre's Camera 3 view
(wider view, so less detail). An animation from Elon's reveal of SN4's
bottom is part of the iGadget footage.

SpaceX's drone and thrust-structure clip shows the legs deploying quite
clearly.
URL:https://www.youtube.com/watch?v=s1HA9LlFNM0&feature=youtu.be

A big chunk of something departed the launch stand at the same time as SN5,
and there seemed to be some extraneous flame around the Raptor piping as the
descent view began, but everything looks pretty good otherwise.

Will SN5 see more action before SN8 is ready? Not clear, but we can expect a
thorough inspection if not a tear-down before anything else happens. (SN6
may already be a hanger queen.)

Got that part way wrong. SN6 has joined the "flight proven" club.

/dps

--
Trust, but verify.

Snidely is guilty of mn.1aad7e49ca7c97a1.127094@snitoo as of 9/3/2020
11:25:38 AM

and has now fixed the subject line.

Snidely formulated the question :
Starship SN5 finally hopped, 150m + horizontal translation from one side of
Hoppy to the other.

URL:https://www.teslarati.com/spacex-starship-sn5-hop-debut-success-mars/

That article has a link to LabPadre's camera 1, with the appropriate
delta-T. The direct link at
URL:https://www.youtube.com/watch?v=5QbM7Vsz3kg
will have enough of the stream to watch for several more hours , but their
channel has several good excerpts from different cameras.

Like discussion elsewhere of how much playing time is in a 3-hour football
broadcast, the live stream runs about 12 hours ... and the flight about
50s.

URL:https://www.youtube.com/watch?v=TYAi2JJItgY from iGadgetPro has a
side-by-side from EverydayAstronaut and BocaChicaGal.

The landing legs look like little nibs, visible in the EA shot just before
the clouds obscure the view, and also visible in LabPadre's Camera 3 view
(wider view, so less detail). An animation from Elon's reveal of SN4's
bottom is part of the iGadget footage.

SpaceX's drone and thrust-structure clip shows the legs deploying quite
clearly.
URL:https://www.youtube.com/watch?v=s1HA9LlFNM0&feature=youtu.be

A big chunk of something departed the launch stand at the same time as SN5,
and there seemed to be some extraneous flame around the Raptor piping as
the descent view began, but everything looks pretty good otherwise.

Will SN5 see more action before SN8 is ready? Not clear, but we can expect
a thorough inspection if not a tear-down before anything else happens.
(SN6 may already be a hanger queen.)

Got that part way wrong. SN6 has joined the "flight proven" club.

/dps

--
Trust, but verify.

Snidely submitted this idea :

Got that part way wrong. SN6 has joined the "flight proven" club.

Watching
URL:https://www.youtube.com/watch?v=u-3DRpakVB0
with the legs being removed and SN6 being lifted onto the transporter,
I have the following questions:

1) When placed on the pipestands, are the pipestands at hardpoints, or
just on the thrust structure's outer ring?

2) When placed on the transporter's stand, it looked like the
attachments were at the same points the legs had been. Am I seeing
this correctly? And this stand will remain with SN6 at the build site,
no?

The videos of SN6's legs being attached on the test/launch stand seemed
to have the legs and the stand attached at different points, but those
videos have expired so I can't double check.

/dps

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