Dream Chaser spacecraft test flight goes perfectly, except for one thing

Sierra Nevada Corp.'s prototype for its Dream Chaser spacecraft made a less-than-perfect test flight over the weekend.

Ken Ulbrich/Reuters/NASA
The privately owned prototype space plane, Dream Chaser, aced its debut test flight in California, but was damaged after landing when a wheel did not drop down, developer Sierra Nevada Corp said over the weekend. The Dream Chaser is one of three space taxis under development in partnership with NASA to fly astronauts to the International Space Station following the retirement of the space shuttles in 2011.

Sierra Nevada Corp.'s prototype for its Dream Chaser spacecraft made a less-than-100-percent successful test flight over the weekend, in a possible misstep in the developer’s attempts to secure a NASA contract to transport astronauts between Earth and the International Space Station.

Dream Chaser flew freely for the first time on Saturday when it was released from a helicopter at an altitude of some 12,500 feet. The neat glide to Earth followed up on two previous attached test flights for the space plane. But during the landing, what had been up until then an error-free descent skidded into trouble at Edwards Air Force Base, near Lancaster, Calif. Upon touchdown, a landing gear malfunction sent the plane off the tarmac. 

Mark Sirangelo, space systems chief for Sierra Nevada, told Space.com that the damage to Dream Chaser was light and repairable. Astronauts in the craft would have been unscathed, he said (this test flight was unmanned).

He stressed to Space.com that the landing error was minor relative to the success of the free flight, which has been compared in the press to the debut test flight of the Space Shuttle Enterprise some 36 years ago. That prototype showed in three test flights, in which it was dropped from a Boeing 747 over California, that a shuttle could glide to a safe landing, a feared sticking point in the development of the shuttle program.

“While there was an anomaly with the left landing gear deployment, the high-quality flight and telemetry data throughout all phases of the approach-and-landing test will allow SNC teams to continue to refine their spacecraft design,” said Sierra Nevada, in a statement. “As with any space flight test program, there will be anomalies that we can learn from.”

Sierra Nevada’s public video of the test flight ends before the botched landing, The Washington Post reported.

Sierra Nevada’s insistence that its prototype is doing just fine is expected, as the private company is in the midst of competing with two others for a plum contract with NASA to ferry astronauts to the ISS. For the developer to continue receiving funds from NASA to build Dream Chaser, and to remain in the running for the agency's contract, it must demonstrate at regular intervals that its design is meeting expected milestones, NASASpaceFlight.com reported.

NASA, since dismantling its space shuttle program in 2011, has been sending its astronauts to the ISS aboard Russia’s Soyuz capsules – for a fee as jarring as a rocket booster, or about $70 million per seat. NASA’s $424 million contract with Russia is valid until 2019 but NASA has said it hopes to have its own spacecraft as early as 2017, depending on funding support from Congress.

NASA has supplied three companies, Sierra Nevada, SpaceX, and Boeing, with millions of dollars to develop proposed designs for a new spacecraft that will end the agency’s pricey reliance on Russia. Both SpaceX and Boeing have proposed capsule designs for the spacecraft: SpaceX is working on the Dragon Capsule, while Boeing is developing the CST-100. But Sierra Nevada is designing to a different tune: it is building what looks like a miniature space shuttle.

Dream Chaser is modeled on a NASA concept vehicle, HL-20, an imagined but never built “space taxi” designed in the 1980s. That’s a choice of design that has at times exposed Sierra Nevada to the subtle derision that it is building a spacecraft based on a design now more than two decades old. HL-20 is also a close derivative of the HL-10 design, from the 1960s, Space.com reported.

Sierra Nevada has noted, though, that the craft is more advanced than the design floated back in the 1980s: the space plane’s propulsion systems are modeled off of those used in Scaled Composites would-be commercial spaceship, SpaceShipTwo. The developer also emphasizes that HL-20 “has years of development, analysis, and wind tunnel testing.”

The three-way tug of war for NASA’s contract is concurrent with a separate tussle – similar in the amount of dollars spent and the altitudes reached for – for control over the still hypothetical space tourism market. Last week, a new commercial space outlet, World View, announced plans to sell $75,000 trips to the middle of the stratosphere aboard a capsule tethered to a giant balloon. The venture plans to set up shop at the same launch point, New Mexico’s Spaceport America, as does Virgin Galactic, the commercial outlet that plans to sell blastoffs into space at $250,000 a seat.

You've read  of  free articles. Subscribe to continue.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.

QR Code to Dream Chaser spacecraft test flight goes perfectly, except for one thing
Read this article in
https://www.csmonitor.com/Science/2013/1030/Dream-Chaser-spacecraft-test-flight-goes-perfectly-except-for-one-thing
QR Code to Subscription page
Start your subscription today
https://www.csmonitor.com/subscribe