SpaceX (general discussion)

Michel Van

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new from "Mr. Steven"
the boat got fitted with a 4x larger net


 

TomS

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https://www.nasaspaceflight.com/2018/07/crew-dragon-cape-iss-schedule-drive-dm-1-date/

Crew Dragon capsule has arrived at the Cape, with the booster in work at the Hawthorne, TX plant. The unmanned flight (DM-1)is scheduled NET 31 August but probably later because they have to work with the ISS crew schedule, which may be tied up with another cargo delivery. Confirms that DM-1 will carry some cargo.
 

martinbayer

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TomS said:
https://www.nasaspaceflight.com/2018/07/crew-dragon-cape-iss-schedule-drive-dm-1-date/

Crew Dragon capsule has arrived at the Cape, with the booster in work at the Hawthorne, TX plant. The unmanned flight (DM-1)is scheduled NET 31 August but probably later because they have to work with the ISS crew schedule, which may be tied up with another cargo delivery. Confirms that DM-1 will carry some cargo.
That's Hawthorne in California, not Texas.

Martin
 

Moose

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Michel Van said:
new from "Mr. Steven"
the boat got fitted with a 4x larger net


Even using composites, I wonder how adversely the mass of those arms impacts the sailing qualities of that hull.
 

TomS

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martinbayer said:
TomS said:
https://www.nasaspaceflight.com/2018/07/crew-dragon-cape-iss-schedule-drive-dm-1-date/

Crew Dragon capsule has arrived at the Cape, with the booster in work at the Hawthorne, TX plant. The unmanned flight (DM-1)is scheduled NET 31 August but probably later because they have to work with the ISS crew schedule, which may be tied up with another cargo delivery. Confirms that DM-1 will carry some cargo.
That's Hawthorne in California, not Texas.

Martin
Yep. Brain fart.
 

TomS

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FighterJock

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TomS said:
FighterJock said:
The first SpaceX Dragon crew capsule has arrived at Cape Canaveral for the test flight without astronauts later this week.

https://spaceflightnow.com/2018/07/14/spacexs-first-space-worthy-crew-dragon-capsule-arrives-at-cape-canaveral/
I posted this exact link yesterday. The unmanned test flight is not next week. It's sometime later this year, probably in the fall.
Thanks TomS, sorry about that double posting. I only read it yesterday. :-[
 

Silencer1

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Moose said:
Even using composites, I wonder how adversely the mass of those arms impacts the sailing qualities of that hull.
Not only the mass of arms, but as well a mass of (possibly grabbed) Falcon's fairing - all that combined with their height over ship's deck made this enterprise, IMHO, quite challenging.
SpaceX' droneships are flat and designed to be low as possible to provide the stability of whole system (droneship + 1st stage) in the range of various sea conditions.

Perhaps, catching the fairings with "arms" has been just one of many ideas of SpaceX?
 

fredymac

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Testing maneuverability.

https://www.youtube.com/watch?v=VlCO7gBXWNA
 

TomcatViP

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Fantastic design. Jaw dropping agility.
For those afraid of the ship rolling over, you have to understand that for this happening, the force would have to fight both the counterweight under the ship and pushes the water against the immersed part of the hull. Water having a density of 1000kg/m3, it's a lot of pressure to put (without pulling thought the net). And the net is ensuring a smooth impact while distributing the load among the pillars.
 

Moose

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TomcatViP said:
Fantastic design. Jaw dropping agility.
For those afraid of the ship rolling over, you have to understand that for this happening, the force would have to fight both the counterweight under the ship and pushes the water against the immersed part of the hull. Water having a density of 1000kg/m3, it's a lot of pressure to put (without pulling thought the net). And the net is ensuring a smooth impact while distributing the load among the pillars.
I'm not worried about a fairing impact to the next causing the boat to capsize.
 

TomcatViP

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If you wonder about the adverse torque on the ship stability induced by the pilar, please have this simple rule in mind: the diff in weight b/w a marine steel and composite part will be around 10. So to make a proper use of the eyomeyer, scale down those arms 10 times.


Best,

Tom
 

Arjen

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What happens if something-to-be-caught hits the net's edge? And that something is heavy and moving reasonably fast?
 

Michel Van

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Arjen said:
What happens if something-to-be-caught hits the net's edge? And that something is heavy and moving reasonably fast?
according sources in the Internet
http://www.spacelaunchreport.com/falcon9ft.html
https://www.teslarati.com/spacex-fairing-recovery-boat-using-giant-net/

The Payload fearing parts weight each, around one metric ton or 2,205 lbs.

Interresting Graphic about SpaceX market share



oh by the way
https://www.youtube.com/watch?v=xybp6zLaGx4
 

Hobbes

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Arjen said:
What happens if something-to-be-caught hits the net's edge? And that something is heavy and moving reasonably fast?
The fairing halves weigh about 1 ton each, and they land at parachute speeds (20 km/h? Hot a high speed, in any case).
If the net is 40x40 m, the impact will be at most 20 m from the centerline. That's equivalent to placing a 20-ton container on the deck 1 m out from the centerline. On a 400-ton ship, that's not a lot.
I suspect the ship has stabilizers, which should minimize the roll that occurs due to an out-of-center landing.
 

fredymac

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Some details on Mr Stevens propulsion/maneuvering system.

https://www.youtube.com/watch?v=JMj2WaSFZ2E
 

Michel Van

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The Crew for Dragon2 mission 1 and 2, ahh yeah also the Starliner crews...
https://youtu.be/Eu13IPVFGp0


Block 5 At Harbor put horizontal for transport
https://youtu.be/iZVvt17BagY
 

NeilChapman

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Frankly I anticipated this news would have come eight months ago. But here it is...

https://www.defensenews.com/space/2018/08/02/one-possible-job-for-spacexs-bfr-taking-the-air-forces-cargo-in-and-out-of-space/
 

Michel Van

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NeilChapman said:
Frankly I anticipated this news would have come eight months ago. But here it is...

https://www.defensenews.com/space/2018/08/02/one-possible-job-for-spacexs-bfr-taking-the-air-forces-cargo-in-and-out-of-space/
Seem that in this Article, the USAF is more interested in intercontinental ballistic Transport to replace the C-5 cargo planes.
If SpaceX is able to fly BFR inside there estimate operation Cost, they got paying regular customer !
But for that BRF need redesign of there Cargo hold and its loading systems to match USAF specifications.

Extremely Happy of this deal will be NRO
Next with Falcon Heavy, they get also rocket that carry 150 Tons and bring it back !
 

sferrin

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Michel Van said:
Next with Falcon Heavy, they get also rocket that carry 150 Tons and bring it back !
Has SpaceX ever been specific as to if that "150 tons" includes the weight of the orbiter or not? For example, the Shuttle put about 240,000lbs into orbit on each flight but less than 60,000lbs of that was actually payload.
 

Michel Van

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sferrin said:
Michel Van said:
Next with Falcon Heavy, they get also rocket that carry 150 Tons and bring it back !
Has SpaceX ever been specific as to if that "150 tons" includes the weight of the orbiter or not? For example, the Shuttle put about 240,000lbs into orbit on each flight but less than 60,000lbs of that was actually payload.
let's wait and see if that Rocket is build,

for moment look the feature on spaceX suits, they got visors
 

Hobbes

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sferrin said:
Michel Van said:
Next with Falcon Heavy, they get also rocket that carry 150 Tons and bring it back !
Has SpaceX ever been specific as to if that "150 tons" includes the weight of the orbiter or not? For example, the Shuttle put about 240,000lbs into orbit on each flight but less than 60,000lbs of that was actually payload.
the 150 ton figure is the payload. The orbiter gross weight is 1330 tons.
 

Flyaway

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SpaceX set to re-fly first Falcon 9 Block 5 booster Tuesday

SpaceX test-fired the rocket Thursday in a customary pre-launch static fire test, and the company has confirmed the launch Tuesday will reuse the first stage booster first flown May 11 on the maiden flight of the upgraded Falcon 9 Block 5 rocket.
https://spaceflightnow.com/2018/08/05/spacex-set-to-re-fly-first-falcon-9-block-5-booster-tuesday/
 

Flyaway

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[Space News] Spaceflight gears up for dedicated Falcon 9 launch
A company statement said only that the launch was scheduled for later this year, but Blake said Spaceflight expects the SSO-A mission to launch in the fourth quarter. “We don’t have an exact date yet, but we’re definitely in the fall,” he said. One source with a payload on the mission said they’ve been told to plan for a mid-November launch.

...

That mission [SSO-A] was delayed by a year because of other delays in the SpaceX launch manifest. Blake said the company was open to doing similar missions in the future, but wanted to wait until after the SSO-A mission launched before making plans. “I think there’s definitely a chance of us doing more, like an SSO-B and an SSO-C and the like,” he said.

Future dedicated rideshare missions, though, might use smaller medium-class launch vehicles, such as Arianespace’s Vega or India’s Polar Satellite Launch Vehicle. “They’re easier to fill, certainly,” he said. “At the various different price points, it makes it easier to get a mission together.”
 

Grey Havoc

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https://www.reuters.com/article/us-tesla-musk/musks-spacex-could-help-fund-take-private-deal-for-tesla-nyt-idUSKBN1L20EB

This is not likely to end well.
 

Michel Van

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Every Day Astronaut visit SpaceX HQ

here what he has to say about SpaceX Suit
https://youtu.be/xYUKJ1fE9Dg
 

Flyaway

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https://twitter.com/jeff_foust/status/1039531798034882561

Shotwell: Falcon 9 first stages come back in much better shape than anticipated. Have refurbishment time down to four weeks; goal is still a one-day turnaround next year. #WSBW
 

Flyaway

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SpaceX has signed the world’s first private passenger to fly around the Moon aboard our BFR launch vehicle—an important step toward enabling access for everyday people who dream of traveling to space. Find out who’s flying and why on Monday, September 17.
https://twitter.com/id/status/1040397262248005632
 

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sferrin

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That's quite a different design for BFR/S than they've shown in the past.
 

TomS

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Yep. Looks like there are landing legs in housings at the tips of the fins. The old version had four separate landing legs in the fuselage, but this has three out in the fins.

It also looks like there are canards up front and big petals around the engine area that may function as a combined vacuum nozzle for the Raptors.
 

DrRansom

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It also looks like much less like a lifting body than before.

And - we have a cool SpaceX announcement in a bad news cycle for Tesla.
 

sferrin

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DrRansom said:
It also looks like much less like a lifting body than before.

And - we have a cool SpaceX announcement in a bad news cycle for Tesla.
Time to bust out the tinfoil. . . ::)
 

Grey Havoc

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https://www.defenseone.com/technology/2018/09/spacex-well-consider-launching-space-weapons-if-asked/151328/

Sounds like SpaceX is still trying to mend fences with the Air Force.
 
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