Tag Archives: SpaceX

SpaceX has reflown a booster!

The first reflown Falcon 9 first stage core has completed its second mission, and been recovered successfully on a barge at sea.  They also apparently recovered half of the payload fairing, which I didn’t know they were even thinking about attempting.  The upper stage went on to deliver SES-10 to the correct geosynchronous transfer orbit.

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The reused Falcon roars before flight, and RS-25 roars again

The first reflown Falcon 9 core is on the pad at LC-39A, and has completed a hotfire test.  Due to the test having slipped to today, launch is now targeted for Thursday.  Payload was not installed on the rocket for this test; the rocket will be brought down and back to the assembly building for attachment of SES-10 payload before being rolled back to the pad later this week.

If that was exciting, here’s another hotfire test for you, this time of an RS-25 engine in the venerable A-1 test stand, originally built to test Saturn S-II stages.  This engine design will also be making reflights, but that’s less surprising, as  the RS-25 is better known as the Space Shuttle Main Engine.  This particular test, performed late last week at Stennis, was to validate a new engine controller.  The engine used for this test was Engine No. 0528.  It has never been to space; it’s a ground test article. Although designed as the world’s first fully reusable liquid rocket engine for first stage ascent, the SLS program is expected to exhaust the entire supply of RS-25s.

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SpaceX launches EchoStar 23

SpaceX completed another uneventful climb to orbit out of the historic LC-39A, placing EchoStar 22 into geosychronous transfer orbit.  This was a less exciting launch than most Falcon 9 flights of late, as EchoStar 22 is very near the absolute limit of Falcon 9’s capacity.  Therefore, the landing legs and grid fins were omitted from the vehicle, as there would be no propellant left to attempt a return.  The first stage was expended with no attempt to recover.  This was also the first night launch from LC-39A in nearly eight years — the last night launch from this pad was STS-131, with the Space Shuttle Discovery, on April 10, 2010.  The first night launch from this pad was Apollo 17, on December 7, 1972.  It gives me joy to know that this will not be the last one:

Upcoming launches the remainder of March include an H-2 from Japan, a Delta IV from Cape Canaveral (was supposed to have launched, but was bumped to give Falcon 9 a second launch attempt), an Ariane V from South America, an Atlas V from Cape Canaveral, and finally the groundbreaking reflight of a Falcon 9 first stage on the SES-10 launch from Cape Canaveral (currently set for March 27).  As with any launches, these dates are subject to change for technical or weather reasons.

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SpaceX could be the next to send humans to the Moon???

Yes, you heard that right.  They have yet to launch their crewed spacecraft as far as the ISS, but this week they announced that two undisclosed wealthy individuals have approached them about riding a Dragon capsule, boosted by their soon-to-fly Falcon Heavy, in a trip around the Moon.  (I’m betting they’re talking a lunar swingby mission, not an orbital mission.)  They plan on conducting this mission by the end of 2018.

For perspective, there are only two flights of Falcon Heavy currently on the manifest (the demo launch and a USAF experimental mission, one this year and one the next), and the crewed Dragon isn’t set to fly to the ISS until the fourth quarter of 2018 as it is.  (And the GAO recently expressed serious doubt about that even happening.)  So this is pretty ambitious.  Exciting, and very very cool, but certainly a stretch goal.

Who are the two individuals?  SpaceX isn’t saying.  They did, however, say they’d be happy to give NASA dibs on flying to the Moon aboard Dragon first — an announcement which came as a great shock to NASA, since they found out about all of this the same time the rest of us did.

This is sure to shake things up, and I’d not put odds on whether or not they’ll manage this.  I do have to wonder whether they’re overextending themselves.  They have put a lot of very ambitious challenges in front of themselves.  From a program risk perspective, this doesn’t seem like a good idea.  But if they pull it off . . . hoo boy.  There’s quite a payoff in terms of bragging rights, and it’s definitely a strong step towards their ultimate goal: Mars.

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Dragon arrives at ISS, and Progress begins its climb

The cargo trips to the ISS continue, with the CRS-10 Dragon arriving a day late (after waving off the first rendezvous due to faulty GPS data) and Progress MS-05 blasting off and returning the Progress capsule to flight after the unfortunate launch vehicle failure that destroyed the last one.  Progress Ms-05 also capped off the venerable Soyuz-U, as it was the final flight of that rocket variant.

Dragon has been berthed at the nadir port of the Harmony node, and Progress MS-05 is en route to dock with the nadir port of the Pirs compartment.

The final Soyuz-U launch:

And a timelapse of the Dragon berthing:

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LC-39A return to flight with SpaceX Falcon 9: SCRUB, reset for Sunday

The historic return to flight for LC39A, last used for STS-135 and still sporting most of the Shuttle-era Fixed Service Structure and Rotating Service Structure, has been delayed at least a day, after a scrub at T-15 seconds. The launch was set to take off this morning, but was scrubbed due to “slightly odd” behavior in the upper stage — a routine preflight hydraulics check revealed something off-nominal in the behavior of an upper stage steering hydraulic piston (presumably part of the engine gimbaling system).  The Falcon 9 with Dragon attached has been lowered back to the horizontal position, but SpaceX is pressing ahead towards the second opportunity, tomorrow at 9:38:59 a.m. EST.  This will be the first commercial spaceflight from Kennedy Space Center.  (Prior Falcon 9’s launched from Air Force pads.)

Meanwhile, in other KSC news, a NOTAM (Notice To Airmen) was issued earlier this week which strongly suggested the X-37 that has been orbiting the Earth for nearly two years might be coming down again.  The NOTAM expired the same time the range opened up for Falcon 9.  It seems plausible, then, that X-37 may make a landing attempt once the Eastern Range becomes available again.

Stuff going up, and stuff coming back down . . . it’s gotta be exciting at the Cape and on Merritt Island!

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LC-39A: Bringing the Heat Back

As part of routine preparations for the upcoming Dragon flight to the ISS, SpaceX has also passed a historic milestone: allowing the flame trench at LC-39A to taste fire again.

Ignition is around two minutes into the video.  Several things to note in this video: the extra-large Falcon 9 strongback, designed to support the Falcon Heavy, the Shuttle-era hardware still resident (particularly the Fixed Service Structure and Rotating Service Structure, although both have been stripped of most of their equipment, as well as the huge Apollo-era water tower for the sound suppression system), and the distant white shape of the SpaceX Falcon 9 assembly building at LC-39A.  Never before have rockets been assembled at LC-39A; the pad was built for the gigantic Saturn V, which was assembled in the VAB and then ponderously rolled to the pad, and then the same strategy was employed for the Space Shuttle program.  But Falcon 9 is a much simpler vehicle, and does not require such a large assembly hall as the VAB.

The Falcon 9 hotfire test concluded successfully. The vehicle will be lowered and pulled into the assembly hall for attachment of the Dragon spacecraft.  After returning to the pad with payload installed, Falcon 9 is slated to lift off February 18 on a mission to the ISS, returning LC-39A to service for the first time since 2011.  SpaceX has additional flights already manifested for LC-39A; the next will be EchoStar 23 no earlier than February 28, and SES 10 sometime in March.  The SES 10 launch will be closely watched, as it will feature the first reflown Falcon 9 core.

Just for fun reference, here’s the last flight from LC-39A:

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