Space

December 7, 2012

Stratolaunch switches to Orbital for rocket

Tags:
Raphael Jaffe
Staff writer


Stratolaunch Systems and SpaceX are ending their joint plan that would have had SpaceX supply the rocket that the mothership takes to launch altitude.

Instead, Orbital Sciences Corp. is doing design studies for such a space vehicle. The parting of ways is amicable, and opens up a significant new project for Orbital. Stratolaunch CEO Gary Wentz announced the change in a Nov. 27 email.

The Stratolaunch project was announced in December 2011, and is funded by Paul Allen, cofounder of Microsoft. It envisions an enormous air-launch system that, in its original configuration with a SpaceX rocket, was to be capable of lofting 6,100 kilograms to low Earth orbit or 2,300 kilograms to geosynchronous orbit.

Scaled Composites of Mojave, Calif., is designing and building the system’s twin-boom mother ship: a massive, 222,000-kilogram airplane with a 117-meter wingspan capable of flying 2,400 kilometers from a launch site before deploying a rocket. It will be the largest aircraft ever built.
Dynetics Corp. of Huntsville, Ala., is building the mating and integration system that will secure the rocket to its carrier aircraft.

“We agreed with SpaceX that to meet our design requirements, the existing Falcon 9 architecture would require significant structural modifications to incorporate a fin/chine and to be carried horizontally,” Wentz said. “As we studied the design, it became apparent that SpaceX would have to make significant modifications to their manufacturing process to accommodate our configuration, which would have a pronounced effect on their business model.”

The Stratolaunch craft would include four or five engines, and will be launched horizontally in contrast to the Falconís vertical takeoff. SpaceX has not publicly commented on the break with Stratolaunch.

Orbitalís Pegasus is air launched from a reinforced L-1011 aircraft. There have been 41 Pegasus launches. They launch satellite payloads of about 450 kilograms. But only one, for April 2013, is now on the flight manifest. Orbital is hard at work on the Antares rocket and Cygnus cargo carrier for NASAís Commercial Crew Resupply program.

Allen also funded SpaceShipOne, designed and built by Bert Rutanís Scaled Composites, it won the $10 million X Prize in 2004, by flying above 100 kilometers twice within two weeks.

Developing SpaceShipOne cost about $28 million. Allen said he expected to spend “at least an order of magnitude more” on Stratolaunch than he spent on SpaceShipOne.




All of this week's top headlines to your email every Friday.


 
 

 
nasa-hubble

NASA unveils celestial fireworks as official image for Hubble 25th Anniversary

The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in the 25th anniversary NASA Hubble Space Telescope image, released to commemorate a quarter century of exploring the solar system an...
 
 
NASA illustration

NASA awards radiation challenge winners, launches next round

NASA illustration This illustration depicts our heliosphere, showing the approximate locations of Voyager 1 and Voyager 2 spacecraft. Galactic cosmic rays originate outside the heliosphere and stream in uniformly from all direc...
 
 
NASA photograph

Celebrate with NASA as agency commemorates Hubble’s 25th anniversary

NASA’s Hubble Space Telescope is turning 25 this year. The observatory has transformed our understanding of our solar system and beyond, and helped us find our place among the stars. NASA is celebrating the Hubble Space T...
 

 

ULA unveils America’s new rocket

https://www.youtube.com/watch?v=emmeil-0u5k&feature=player_embedded United Launch Alliance unveiled its Next Generation Launch System April 13 at the 31st Space Symposium. The new rocket, Vulcan, will transform the future of space by making launch services more affordable and accessible. The NGLS brings together decades of experience on ULA’s reliable Atlas and Delta vehicles, combin...
 
 
NASA/JHU APL/Carnegie Institution of Washington

NASA spacecraft achieves unprecedented success studying Mercury

NASA/JHU APL/Carnegie Institution of Washington NASA’s MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft traveled more than six and a half years before it was inserted into orbit around Merc...
 
 

NASA selects American small business, research institution projects for further development

NASA has selected 149 research and technology proposals from American small businesses and research institutions that will enable NASA’s future missions into the solar system and beyond while benefiting America’s technology-driven economy right here on Earth. The selected proposals now will enter into negotiations for contract awards as part of Phase II of the agency’s...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>