Japan and Europe are cooperating on a pre-cooled turbojet.
Unfortunately, they seem to be ignoring the real issue, which is drag and fuel consumption. I think that Mach 5 is above the sweet spot for a practical system.
Japan and Europe are cooperating on a pre-cooled turbojet.
Unfortunately, they seem to be ignoring the real issue, which is drag and fuel consumption. I think that Mach 5 is above the sweet spot for a practical system.
…are upset because the Pentagon isn’t wasting taxpayer money as fast as they want it to. I’m sure this topic will come up in this afternoon’s cage match between Gwynne and Tory in front of the House Armed Services Committee.
Finally goes true 3-D.
It’s finally starting to feel like the 21st century.
[Update a while later]
Aaaaaannnd, self-flying cars by 2017?
Seems a little optimistic, but if we’re going to have flying cars, they’ll have to be self flying.
[Mid-morning update]
Aaaaand, molecular 3-D printers. The future is looking very interesting. Both in the conventional and the Chinese sense.
[Late-morning update]
Aaaaannnd, lab-grown chicken meat?
That would be huge breakthrough for both earth and space. I’d really like to see it for pork, though. Technically, would lab-grown pork be kosher? Or halal?
Thoughts from Laura Seward Forczyk. As she notes, media hype about SLS/Orion getting anyone to Mars is greatly exaggerated, with the connivance of NASA PAO.
…has a new CEO. I know they’ve been looking for one for a while. While I’ve never discussed it with him, I suspect Jeff is relieved; he’s probably been trying to replace himself for a long time. It will allow him to focus more on the company’s technical issues, while retaining overall strategic control as board chairman.
A few weeks before its annual conference, a space policy update.
Leonard David has the story of yesterday’s roll out in North Las Vegas.
In my view, there were three events in human spaceflight this week. The SRB firing, BEAM, and the announcement by Lockheed Martin of a long-needed space tug. Only the latter two have any relevance to the future.
I think the full roll out is still planned for the Space Symposium next month.
…may be running out of engines a lot sooner than it thought.
What a policy mess.
And on top of that, the new Falcon 9 may require additional certification:
NASA says if the Falcon 9 is upgraded in the future, the agency will review the performance and design changes and make a judgment as to whether those changes will require a new certification.
“A thrust increase alone would not immediately result in a new common launch vehicle configuration,” Buck says. “However, often such changes are accomplished by major design differences throughout the engine and include propellant tank changes that affect the burn time and vehicle mass significantly,” he says, adding that NASA considers the effect on loads, controls and aerodynamics when making such a determination. If the agency finds modifications that constitute a new launch vehicle configuration, then a certification strategy that complies with NASA regulations would be put in place and that “such a strategy would define the number of flights required to achieve NASA certification,” Buck notes.
LSP says it is unclear how many additional flights of an upgraded Falcon 9 may be necessary, if any.
“It will depend on what changes, their magnitude, and when the contractor would desire to cut them in,” Buck says, adding that the agency does not currently plan to certify the vehicle for higher-risk Cat. 3 missions, which would include planetary and astronomy missions.
And then there’s this:
Both agencies expect to complete their respective Falcon 9 certification efforts mid-year, though NASA says once the vehicle is certified to launch riskier missions, in the future it does not plan to fly science payloads on SpaceX launchers utilizing refurbished Falcon 9 cores.
“Our current Category 2 certification effort assumes the use of an un-refurbished core stage,” says NASA spokesman Joshua Buck, referring to the ongoing effort to certify the Falcon 9 to launch Earth-observation spacecraft, starting with the Jason-3 ocean altimetry mission set to lift off in June from Vandenberg AFB, California.
See, in a sane world, you’d have more confidence in hardware that had already successfully flown, not less. This would be like insisting on a brand-new airplane very time you flew. Hopefully we’ll get there over time.
[Mid-afternoon update]
Note the first comment by Dave Huntsman on this latest demonstration of NASA’s ongoing aversion to reusability, going back to the X-33 fiasco.
It looks to Dan Rasky as though it’s literally about to erupt.
I do think it’s probably figuratively, though.