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SpaceX Raptor: large methane engine (updates)


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#16 OP DocM

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Posted 24 February 2014 - 17:57

88x would be for the original Raptor ~660,000 lbf thrust spec. That is no longer operative.

Raptor was recently upgraded to 1,000,000 lbf, so 1,000,000 ÷ 7500 = 133.33... times as powerful as the engine in that video.

Now multiply by 9 or 27, the likely engine counts. Such a launch will be nothing short of EPIC.


#17 OP DocM

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Posted 16 April 2014 - 16:16

SpaceX President & COO Gwynne Shotwell on The Space Show about future Mars plans,

We should have really great progress on our Mars vehicles. [challenges are] Turning those R&D vehicles into production vehicles, finding enough launch sites where you can get a lot of people moving, or at least planning for the launch sites to get a lot of people moving, and launching.


They appear to be making a distinction between early R&D Mars vehicles and spacecraft and the later production-level vehicles used for colony building. This sort of iterative design has always seemed likely but this is the first time they've expressed it.

This also makes it more likely we'll see the see the Block 1 Raptor (1 mlbf) recently discussed evolve into the Block 2 Raptor (1.67 mlbf !!) hinted at by Musk's recent statements about a 15 mlbf core (too little for the tri-core, and a 550 klbf Raptor in a tri-core is unlikely.)

#18 OP DocM

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Posted 22 April 2014 - 01:43

Raptor engine component tests begin in about 1 month.

http://mseigs.com/na...ng-partnership/

NASA, SpaceX Cut Ribbon To Launch Testing Partnership

An April 21 ribbon-cutting ceremony at NASA’s Stennis Space Center near Bay St. Louis, Miss., marked the beginning of a new NASA and Space Exploration Technologies Corp. (SpaceX) partnership aimed at continuing to propel America’s burgeoning commercial space program forward and enhance utilization of NASA’s advanced test facilities. Several Mississippi leaders joined NASA and SpaceX representatives for the ceremony including Gov. Phil Bryant, U.S. Sen. Thad Cochran and U.S. Rep. Steven Palazzo.

SpaceX signed a Space Act Agreement with the space agency last fall to test components of its methane-fueled Raptor rocket engine on the E-2 Test Stand at Stennis. SpaceX is developing the Raptor as a reusable engine for a heavy-lift launch vehicle.

“This is a great partnership between NASA and SpaceX,” Stennis Center Director Rick Gilbrech said. “These types of activities are opening new doors of commercial space exploration for companies. SpaceX is another example of the outstanding progress America’s commercial space industry is making, and we are happy to welcome them as our newest commercial test customer.”

Since the fall, Stennis has performed necessary maintenance to prepare the test stand and completed equipment modifications needed to accommodate Raptor components.

With preparations complete, the ribbon-cutting ceremony paves the way for testing which is scheduled to begin within a month.


“SpaceX is proud to bring the Raptor testing program to NASA’s Stennis Space Center and the great state of Mississippi,” said Gwynne Shotwell, President and COO of SpaceX. "In partnership with NASA, SpaceX has helped create one of the most advanced engine testing facilities in the world, and we look forward to putting the stand to good use.”

The Mississippi Development Authority and the Hancock County Port and Harbor Commission played key roles in the endeavor by fostering and supporting the new partnership.



#19 OP DocM

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Posted 30 April 2014 - 00:55

HOLD THE PHONE....

At 10:00 AM on Saturday May 17 Jeff Thornburg, Spacex's Principal Propulsion Engineer will make a presentation about Raptor at ISDC 2014 (International Space Development Conference), which takes place between may 14-18

"Raptor High Performance Rocket Engine"

#20 OP DocM

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Posted 01 May 2014 - 22:35

http://www.spaceflig...ribbon-cutting/

When asked about the anticipated thrust of the new engine, Shotwell declined to give specifics, and stated that a lot of the work that were going to do here at Stennis is going to inform our ultimate architecture for the Raptor engine. She then stated that the engine would, in any case, generate over a million pounds of thrust.
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SpaceXs Jeff Thornburg followed by stating that the first test on the stand would take place in a matter of days and Shotwell added that the initial testing should last for about a year or two.

When asked to compare Raptor engine technology to other technology currently available, Thornburg explained that theres nothing like this thats ever been produced before, in terms of rocket engine technology . . . . This is the first system, base-lined from the beginning, for flight with methane. And it incorporates engine cycling technologies for reusability that have never been fielded in the history of propulsion development . . . Everything you see starting here on the E-2 complex, and growing beyond, will all be first of its kind in the world.
>



#21 OP DocM

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Posted 15 May 2014 - 17:23

OK.....

at another forum some very experienced rocket designers, US and Russian, have been running the known SpaceX Raptor engine and launcher specs through the Rocket Equation (yes, there is one) to see what kind of rocket comes out the other end if everything else is optimized. Images were generated.

THIS IS NOT SPACEX DATA, but it was genetated by very experienced people.

I can't show the latest ones for a Block 2 big F'ing rocket (BFR), but a small pic of the Block 1 BFR (smaller) has appeared in Google Images.

SORRY, but I can't publish the full size images of either Block 1 or Block 2. In fact, this image is out of date - but close.

This is just to give you an idea of their relative scale to past launchers: the Space Shuttle and Saturn V.

From left: Falcon 9, Shuttle, Falcon Heavy, BFR single-core Crew & Cargo, BFR tri-core Crew, Saturn V, BFR tri-core Cargo

S2.jpg

#22 OP DocM

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Posted 17 May 2014 - 17:14

Double Bummer :(


Maybe the big boss wants to do the reveal.

@jeff_foust
Bummer. The #isdc talk this morning on SpaceX's Raptor engine development, anticipated by many here, is canceled; speaker not here.
12:51pm - 17 May 14

@jeff_foust
@Capoglou Apparently busy working

#23 OP DocM

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Posted 18 May 2014 - 04:13

The next conference that is tech oriented is the AIAA Joint Propulsion Conference July 28-30 in Cleveland, OH.

http://www.aiaa.org/...l.aspx?id=18582

#24 AnotherITguy

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Posted 18 May 2014 - 04:28

On an unrelated note, do we know if congress wants to provide extra funds to Spacex to speed up development of dragonrider?



#25 OP DocM

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Posted 18 May 2014 - 04:39

There's a lot of backchannel stuff I can't go into detail about, and it's not just limited to SpaceX or commercial crew. This Russia stuff has lit a lot of fires.

#26 ImUtrecht

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Posted 18 May 2014 - 08:59

Russian marineships in the north sea like in the old times.

Bear airplanes being escorded by British and Dutch fighters because they come to close to our airspace.

Sweden reporting increased submarine activities.

The list goes on.....

Poland, the Baltic states and some other former east european countries are almost mobilizing.....



#27 OP DocM

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Posted 18 May 2014 - 09:11

Rumbles here of NATO troops being based in the E. European NATO states, among other things.

#28 OP DocM

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Posted 19 May 2014 - 20:57

Realized I should not have been so vague as to attribution of the image - it's a postag stamp promo for http://www.nasaspaceflight.com . Great news site.

OK.....

at another forum some very experienced rocket designers, US and Russian, have been running the known SpaceX Raptor engine and launcher specs through the Rocket Equation (yes, there is one) to see what kind of rocket comes out the other end if everything else is optimized. Images were generated.
>
S2.jpg