Air Force's X-37B Launches into Orbit for Top Secret Mission
April 23, 2010 7:14 AM
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Scientists ready the X-37B unmanned orbital vehicle. The U.S. Air Force is using the space plane for unknown purposes.
The X-37B sat in a silo earlier today.
As evening set, the super-high tech craft launched in about as stealthy fashion is possible when using an Atlas V rocket.
A rendering shows what the X-37B might look like in orbit.
Is the X-37B the future of space flight? Maybe, but the Air Force sure isn't saying
The X-37B's curious tale began in 1999 when NASA contracted Boeing's Phantom Works (Calif.) division to build an
space airplane. The project was transferred to the Defense Advanced Research Projects Agency in September, 2004. The NASA X-37A was redesigned in 2006 by a secret U.S. Air Force research unit, completing the current design, dubbed the
X-37B Orbital Test Vehicle (OTV)
The craft was recently completed and has a 4.5 meter wingspan with a length of 8.9 meters. It comes equipped with kerosene and hydrogen peroxide fuel tanks, an experimental bay, a large navigation "brain", and likely other more secret components.
Thursday night the OTV hurled into space in what appeared to be a
from the Cape Canaveral Air Force Station in Florida. The X-37B OTV was carried on an Atlas V rocket, a relatively inexpensive rocket that has an extremely reliable track record.
What's it doing in space? Your guess is as good as anyone else's. And guesses tend to range from "deploying spy satellites" to "maintaining spy satellites".
Speaking to reporters, Gary Payton, Air Force deputy under secretary for space systems, confessed that there was indeed a secretive launch. He comments, "Well, you can't hide a space launch, so at some point extra security doesn't do you any good."
The OTV will remain in orbit for nine months and then will make a landing at Vandenberg Air Force Base, Calif. So is it doing something with spy satellites? Payton would only guardedly remark, "On this flight the main thing we want to emphasize is the vehicle itself, not really, what's going on in the on-orbit phase because the vehicle itself is the piece of news here."
Payton didn't exact make any bold predictions of success either. He comments, "In all honesty, we don't know when it's coming back for sure. It depends on the progress we make with the on-orbit experiments and the on-orbit demonstrations."
The X-37B project is the culmination of undisclosed hundreds millions in defense spending. Will all that investment be worth it? Only a select handful of Air Force and government officials will be privy to the knowledge to make that assessment.
If there's one thing that's one clear about the X-37B project, it's that it aims to take a different approach to space exploration and utilization. And it makes it clear that the U.S. isn't ready to
relinquish its domination
of space quite yet.
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X37 vs Orion/Constellation cancellation
4/23/2010 10:30:17 AM
Could the X37 be adapted for transporting astronauts? Could there be a link with the recent Orion/Constellation cancellation?
No need to develop a brand-new launcher+capsule if a retrievable space plane is about to become available.
RE: X37 vs Orion/Constellation cancellation
4/23/2010 10:58:40 AM
I thought that on the last story about it, but now in the photo you can see just how small it really is.
Would be nice though to take this as a proof of concept and be able to scale it up to a size that would carry people.
I am wondering though that with the kerosene/peroxide fuel tanks on it, will they be using a higher powered braking engine for making the re-entry velocity much lower so that friction heating is less of a problem? If you can kill off most of your velocity, then more of less freefall from orbit you would experience very little frictional heating thus negating the need for so much heat shielding.
RE: X37 vs Orion/Constellation cancellation
4/23/2010 3:02:06 PM
Take a look:
As I've noted to other people, you could well fit it in a two-car garage.
You might fit one or two people in there in a coffin-like manner (not a good position, when perched vertically on an Atlas). Not my idea of a passenger carrying vehicle.
Scale it up? Maybe. But that brings in a host of other technologies, especially a larger launcher that no one happens to have in their back pocket...
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