Showing posts with label Falcon 9. Show all posts
Showing posts with label Falcon 9. Show all posts

Thursday, August 21, 2014

SpaceX Adopting 3D Printing and Taking it to the Final Frontier

A 3D-printed SuperDraco Engine Chamber being tested by SpaceX. 

The company is planning to use these engines for the manned version of the Dragon spacecraft. 

Credit: SpaceX

The private spaceflight company SpaceX wants to launch astronauts into space in the coming years, and it will enter the final frontier with an innovative technology: 3D printing.

California-based SpaceX is using additive manufacturing, as 3D printing is also known, to build the emergency escape rockets on its new manned Dragon spacecraft.

The capsule, known as Dragon Version 2, is SpaceX's entry in NASA's competition for commercial manned spacecraft to ferry astronauts to and from the International Space Station.

SpaceX sent its first 3D-printed part into space early this year.

The part, a rocket engine main oxidiser valve, flew aboard SpaceX's Jan. 6 launch of a Falcon 9 rocket carrying the commercial Thaicom 6 telecommunications satellite to orbit. The valve flew inside one of the rocket's Merlin 1D engines.



"The mission marked the first time SpaceX had ever flown a 3D-printed part, with the valve operating successfully with high-pressure liquid oxygen, under cryogenic temperatures and high vibration," SpaceX representatives wrote in a statement.

The concept of 3D printing in space has received extensive attention in industry circles in recent months.

NASA plans to send a 3D printer produced by California-based company Made in Space to the space station this year, and the European Space Agency has mused about using 3D parts to build lunar bases.

Despite those plans, a recent National Research Council report said the technology is still in its infancy and that the materials science behind manufacturing in space is poorly understood.

SpaceX has used 3D printing to build the SuperDraco rocket engine for the company's Dragon Version 2 manned spacecraft. 

The eight SuperDracos on the capsule are designed to double as a landing system, or as an escape system in the event of a launch emergency. 

Credit: SpaceX

SpaceX has spent three years evaluating the fast-growing technology, particularly for use on the Dragon spacecraft.

A 3D-printed SuperDraco engine chamber, which will be used in the escape system, passed a firing test at full thrust in late 2013.

"Printing the chamber resulted in an order of magnitude reduction in lead time compared with traditional machining, the path from the initial concept to the first hotfire was just over three months," SpaceX representatives stated.

The 3D valve inside the Falcon 9's rocket engines will also be more efficient to manufacture, SpaceX added.

After extensive testing, the 3D part is now certified to fly alongside regularly manufactured materials.

"Compared with a traditionally cast part, a printed valve body has superior strength, ductility and fracture resistance, with a lower variability in materials properties," company representatives stated.

"The [valve] body was printed in less than two days, compared with a typical castings cycle measured in months."

Tuesday, August 5, 2014

SpaceX Falcon 9 Rocket Launches AsiaSat 8 Telecom Satellite Into Orbit



A high-powered AsiaSat 8 telecommunications satellite blasted into space atop SpaceX's Falcon 9 rocket early Tuesday morning (Aug. 5).

The Falcon 9 rocket, which was carrying the AsiaSat 8 spacecraft, lifted off from SpaceX's launch pad at Cape Canaveral Air Force Station in Florida at 4:00 a.m. EDT (0800 GMT) Tuesday, tracing an arc of orange flame across the dark southeastern skies on the fourth Falcon 9 flight of 2014.

The launch was originally scheduled for 1:25 a.m. EDT Tuesday, but an issue with the rocket's first stage caused a 2.5-hour delay.

The launch plan calls for the rocket to deliver AsiaSat 8 to a highly elliptical "transfer orbit," but the satellite will eventually make its way to geosynchronous orbit about 22,300 miles (35,900 kilometers) above the planet.

From there, AsiaSat 8 will look down on much of Asia, providing a variety of telecom services to customers in the region over the next 15 years.

"AsiaSat 8 will provide exceptional power and additional Ku beam coverage with inter-beam switching capability for services including DTH [direct-to-home] television, private networks and broadband services," representatives for the Hong Kong-based firm AsiaSat (short for Asia Satellite Telecommunications Company Ltd.) wrote in an online description of the satellite, which was built by Space Systems/Loral.

The craft "will be the most powerful member of AsiaSat's fleet, with a payload power of about 8,500 watts," the description said.

In a departure from several recent SpaceX launches, Tuesday morning's liftoff did not include a rocket-reusability test as a secondary objective.

Wednesday, July 23, 2014



Video of the SpaceX Falcon 9 first stage reentry and landing following successful delivery of six ORBCOMM satellites to orbit. 

This test confirms that the Falcon 9 booster is able consistently to reenter from space at hypersonic velocity, restart main engines twice, deploy landing legs and touch down at near zero velocity.

After landing, the vehicle tipped sideways as planned to its final water safing state in a nearly horizontal position. 

The water impact caused loss of hull integrity, but we received all the necessary data to achieve a successful landing on a future flight. 

Going forward, we are taking steps to minimize the build up of ice and spots on the camera housing in order to gather improved video on future launches.

SpaceX today released video from the Falcon 9 first stage flyback and landing video from the July 14 launch of six ORBCOMM advanced telecommunications satellites.

This was a test of the reusability of the Falcon 9′s first stage and its flyback and landing system.

It splashed down in the Atlantic Ocean, and SpaceX called it a "soft" landing, even though the booster did not survive the splashdown.

SpaceX CEO Elon Musk tweeted on July 14 that the rocket booster reentry, landing burn and leg deployment worked well, but the hull of the first stage "lost integrity right after splashdown (aka kaboom)."

He later reported that detailed review of rocket telemetry showed the booster took a "body slam, maybe from a self-generated wave."

SpaceX today said last week's test "confirms that the Falcon 9 booster is able consistently to reenter from space at hypersonic velocity, restart main engines twice, deploy landing legs and touch down at near zero velocity."

This video is of much higher quality than the video from the first soft landing test in the ocean, back in April of this year following the launch of the CRS-3 mission for the Dragon spacecraft to the International Space Station.

Even though the booster has not been recoverable from either test (the April test saw too rough of seas to get the booster) SpaceX said that they received all the necessary data "to achieve a successful landing on a future flight.

The booster tipping over is the nominal procedure (in water), but the booster did touch down in a vertical position; additionally, as seen in the video, the landing legs deployed perfectly, and the flyback boosters performed flawlessly.


Screenshot from the SpaceX webcast of the Falcon 9 launch on July 14, 2013.

"At this point, we are highly confident of being able to land successfully on a floating launch pad or back at the launch site and refly the rocket with no required refurbishment," SpaceX said in today's press release.

"However, our next couple launches are for very high velocity geostationary satellite missions, which don't allow enough residual propellant for landing. In the longer term, missions like that will fly on Falcon Heavy, but until then Falcon 9 will need to fly in expendable mode."

The next attempt for a our next water landing will be on Falcon 9′s thirteenth flight, a launch to the ISS for the fourth resupply mission, but they indicated the test would have a "low probability of success."

That flight is currently scheduled for no earlier than September 12, 2014. The next big challenge comes in flights 14 (another ORBCOMM satellite launch) and 15 (Turkmen satellite), where the booster will attempt to land on a solid surface. Those flights are currently scheduled for NET October and November of 2014.

Saturday, May 31, 2014

SpaceX unveils Dragon V2, an upgraded capsule to uplift astronauts to space - Video

The interior of SpaceX's new seven-seat Dragon V2 spacecraft, the company’s next generation version of the Dragon ship designed to carry astronauts into space, as seen at a press conference in Hawthorne, California, on May 29, 2014

A sleek, white gumdrop-shaped space capsule that aims to carry up to seven astronauts to the International Space Station and return to land anywhere on Earth was unveiled Thursday by SpaceX.

The Dragon V2, short for version two, is the first attempt by a private company to restore Americans' ability to send people to the orbiting space station in the wake of the space shuttle program's retirement in 2011.

"It's all around, I think, really a big leap forward in technology. It really takes things to the next level," said SpaceX CEO Elon Musk.



SpaceX is competing with other companies, including Boeing, Sierra Nevada and Blue Origin, to be the first commercial outfit to take astronauts to space, possibly as early as 2017.

Until then, the world's astronauts must rely on Russian Soyuz spacecraft at a cost of $70 million per seat.

The Dragon V2 was shown for the first time at a jam-packed evening press conference in Hawthorne, California.

The shiny Dragon V2 sat on a white stage floor, as a scorched Dragon cargo capsule was suspended above, bearing the blackened markings of a capsule that had returned to Earth from orbit.

SpaceX's Dragon capsule in 2012 became the first private spacecraft to carry supplies to the ISS and back.

Since then, Orbital Sciences has followed with its Cygnus, a capsule shaped like a beer keg that can carry supplies to the space station but burns upon re-entry to Earth's atmosphere.

SpaceX CEO Elon Musk introduces SpaceX's Dragon V2 spacecraft, the company's next generation version of the Dragon ship, designed to carry astronauts into space, at a press conference in Hawthorne, California, on May 29, 2014

Musk said a key feature of the Dragon V2 is that it will be able to "land anywhere on Earth with the accuracy of a helicopter."

The crew spacecraft will be able to use rocket propulsion and deploy legs to land, instead of using parachutes to make an ocean splash-landing the way the cargo capsule does.

It will however still have parachutes that it can use for a landing in case any engine problems are detected before touchdown on Earth.

The V2 also carries an improved heat shield and will be able to autonomously dock with the space station, instead of needing the space station's robotic arm to catch it and pull it in.

"That is a significant upgrade as well," Musk said.

SpaceX CEO Elon Musk introduces SpaceX's Dragon V2 spacecraft, the company's next generation version of the Dragon ship designed to carry astronauts into space, at a press conference in Hawthorne, California, on May 29, 2014

Musk touted the reusability of the Dragon V2, allowing it to cut back on expensive space journeys.

"You can just reload propellant and then fly again. This is extremely important for revolutionizing access to space," Musk said.

"Because as long as we continue to throw away rockets and spacecraft, we will never have true access to space. It will always be incredibly expensive," he added.

"If aircraft were thrown away with each flight, nobody would be able to fly."

The Internet entrepreneur and billionaire co-founder of PayPal did not say when the Dragon V2's first test flight would take place.

Sunday, April 13, 2014

SpaceX Falcon 9 Launch: Dragon Preparations Continue

International Space Station Program officials and representatives of SpaceX decided Saturday to continue preparations for the launch of the Falcon 9 rocket and the Dragon cargo craft to the space station.

The launch is slated for Monday 14th April from Launch Complex 40 at the Cape Canaveral Air Force Station, Fla.

The launch will go ahead despite the failure Friday of a backup MDM computer communications component that provides redundancy for commanding the Mobile Transporter rail car on the truss of the station. 

A final decision on whether to launch Dragon Monday will not be made until another status meeting is conducted Sunday morning.

NASA has rescheduled its SpaceX prelaunch briefing allow for operational reviews in the morning.

It now will be held at 1 p.m. EDT at the agency's Kennedy Space Center in Florida. For updates on the schedule of events for Sunday, call the Kennedy News Center recording at 321-867-2525.

The component, called a multiplexer demultiplexer (MDM) is one of more than a dozen housed on the truss of the station that routes computer commands to various systems on the outpost.

The failure Friday to a box called EXT-2, a backup box to a prime component in the S0 truss that measures 10.5 x 14.9 x 16.4 inches and weighs 50.8 pounds, occurred during a routine health check of the device.

The prime multiplexer continues to operate flawlessly, and there has been no impact to station operations.

The crew was informed of the problem and is in no danger, continuing its normal complement of research work and routine maintenance.

A reboost of the station using the ISS Progress 53 thrusters was conducted Saturday as planned and placed the laboratory at the correct altitude for Soyuz crew landing and launch operations in May.

Thursday, November 28, 2013

SpaceX Falcon 9 launcher: Launch aborted after engine trouble


Topped with a television broadcasting satellite, SpaceX's Falcon 9 rocket fired its engines and was moments away from liftoff from Cape Canaveral on Thursday, but the commercial booster aborted the launch after computers detected the engines were too slow building up thrust.

Engineers raced to understand and resolve the problem, but they could not get comfortable enough to attempt the launch again before Thursday's time-constrained flight opportunity closed.

Officials had not announced a new target launch date Thursday evening, but SpaceX chief executive Elon Musk posted on his Twitter account the mission would likely be delayed a few days.

SpaceX was targeting liftoff of the 22-story rocket at 5:39 p.m. EST (2239 GMT) Thursday, aiming to achieve the first Thanksgiving Day launch from Florida's Space Coast since 1959.

The launch was pushed back to Thursday after multiple technical problems thwarted an initial launch attempt Monday.