Space

Launch Dry

The most interesting talk at Space Access was a fill-in that was not blogged by Rand, but was by Clark Lindsey:

a CEV concept [was presented] that Boeing is investigating that involves commercial delivery of fuel to orbiting depots. This so-called “dry launch” approach would mean that vehicles for in-space and lunar transport could be launched without fuel and so, being lighter, they would not need new heavy lifters. This would open a great opportunity for the new launch companies to provide fuel to the depots.

It involves an alternative concept (see page 32) from Boeing. The idea is to launch the lunar transfer vehicle dry and provide commercial propellant delivery. This could result in thousands of metric tons of fuel needing to be delivered to LEO. This might bootstrap the commercial launch industry. There are also opportunities for “the last mile” because some launcher companies will not want to have to figure out how to dock with a fuel depot.

1000 metric tons of fuel would be a cool $3 billion unless someone can undercut Elon Musk. 9000 metric tons through 2030 would be $27 billion at current prices, but would likely spur a tech drive and a bidding war to compete prices down to $1000/kg or less.

Administrative

New Samba Problem

I’ve gotten Samba working on my Fedora server, and I can see and read files on it from my Windows 2000 box, and when I first got it working (I had a firewall problem) I could even write to it. But now when I try to drag files to it, or save them from an application, I’m getting an error that indicates a permission problem. I can’t imagine what it could be, since the files and directories are all write permission for the user, and I’m the user. I can write to them as a user on the Fedora box itself–I just can’t do it from the Window’s client.

Anyone have any ideas what could be the problem, or how to diagnose it?

War Commentary

Tuning Up The World’s Tiniest Violin

The Iraqi insurgents were boo-hooing to Zarquawi last week that their morale is low. Ain’t it a crying shame?

The author of the letter also “admonishes ‘the Sheik’ for abandoning his followers” after last year’s U.S. siege on Falluja, west of Baghdad.

U.S. forces led an assault then on the Sunni Triangle city’s terrorist network believed to be run by al-Zarqawi.

Because of the “continuous pressure by Iraqi and [U.S.-led] coalition forces,” a military statement said, al-Zarqawi has relied on his cell leaders to conduct operations while he is forced to evade being killed or captured.

Doesn’t your heart just go out to them?

War Commentary

Tuning Up The World’s Tiniest Violin

The Iraqi insurgents were boo-hooing to Zarquawi last week that their morale is low. Ain’t it a crying shame?

The author of the letter also “admonishes ‘the Sheik’ for abandoning his followers” after last year’s U.S. siege on Falluja, west of Baghdad.

U.S. forces led an assault then on the Sunni Triangle city’s terrorist network believed to be run by al-Zarqawi.

Because of the “continuous pressure by Iraqi and [U.S.-led] coalition forces,” a military statement said, al-Zarqawi has relied on his cell leaders to conduct operations while he is forced to evade being killed or captured.

Doesn’t your heart just go out to them?

War Commentary

Tuning Up The World’s Tiniest Violin

The Iraqi insurgents were boo-hooing to Zarquawi last week that their morale is low. Ain’t it a crying shame?

The author of the letter also “admonishes ‘the Sheik’ for abandoning his followers” after last year’s U.S. siege on Falluja, west of Baghdad.

U.S. forces led an assault then on the Sunni Triangle city’s terrorist network believed to be run by al-Zarqawi.

Because of the “continuous pressure by Iraqi and [U.S.-led] coalition forces,” a military statement said, al-Zarqawi has relied on his cell leaders to conduct operations while he is forced to evade being killed or captured.

Doesn’t your heart just go out to them?

Space

A Peek At The Future?

I just got an interesting note from Popular Mechanics:

At 12:01 a.m. EST, Popular Mechanics will unveil on its Web site an early look at Lockheed Martin’s proposed Crew Exploration Vehicle — one of two major proposals submitted today to NASA to replace the Space Shuttle and eventually carry us to Mars. We’ll be including images and specs. A larger piece will run in our June issue.

I don’t know if I’ll stay up for it (I’m still recovering from the Space Access Conference sleep deprivation), but comments here are open for anyone who does. I’ll take a look in the morning. I am curious to see what Lockmart will propose, particularly now that the competition has gotten more heated with the apparent decision to only award a single contract.

[Tuesday morning update]

Here’s the story.

The biggest obvious difference between it and the Boeing concept (at least the Boeing concept that has been on display in the exploration studies–I can’t speak to what was actually proposed) is that it’s got wings. Or at least a body with a lot more lift than a capsule, with supersonic drogues. Despite that, it still lands with chutes and bags, so it’s not clear why they want such a high L/D, except for more cross range and landing site flexibility, and reduced entry gees. What NASA has been calling a Service Module they seem to be calling a Propulsion Stage. It’s not clear whether it also contains life support consumables (as the Apollo Service Module did), though it does mention that the crew module itself has a LOX supply and fuel cells.

It definitely looks more sexy than Boeing’s design–they may be hoping that will help them as it did in X-33, but having that much L/D is a problem for the launch vehicle, because it will impart bending loads (for which it’s not designed) on it from the side force of the lift. It will be interesting to see how they explain this.

General

Recapping Star Trek

I can’t think of anyone better to do it than Lileks:

“The Next Generation.” The post-Reagan years. The Enterprise was no longer a lone vanguard making its way through realms unknown; now it was like a grand Hilton in space, complete with spa, psychiatric counselor, accommodations for kids, and a French captain who could sometimes be mistaken for a cranky sommelier. Whoopi Goldberg was the ship’s bartender, which, in retrospect, really tells you all you need to know. Patrick Stewart’s Captain Jean-Luc Picard was much-beloved, and for good reason: His stentorian acting style gave the show a dramatic heft it otherwise didn’t always deserve.

The Federation, in this iteration, was like a liberal dream of the U.N.: diplomacy first, multicultural understanding above all, but if need be, a gigantic armada could be summoned to fight off whatever evil leather-clad empire had decided to mess with the goodfolk of Earth. Zeitgeist giveaway: The Klingons became allies, sort of, after the Berlin Wall fell. Grade: B+, not so much for overall quality, but because it relaunched the franchise with a broad-based appeal no subsequent version would match.

RTWT

Space

Back To Boca

I had a long travel day yesterday. My scheduled return flight was supposed to leave Phoenix at 3:30 in the afternoon and arrive in Fort Lauderdale (via DFW) after midnight. I went to the aircraft in the morning, assuming that I could get an earlier flight to Dallas, and thus get home earlier, on standby.

Wrong.

I ended up spending all the time at Skyharbor not getting on to three separate flights, and ended up taking my original flight anyway. Next time I’ll do more than verify that the flights exist–who would have thought that so many others would be so desperate to get out of Phoenix yesterday?

Michael Mealing has a summary of the results of the panel discussion that ended the conference Saturday night. Thanks again to Henry Vanderbilt (and particularly for getting a hotel with wireless everywhere) for putting on another good get-together for this growing community.

[Update at 10:30 AM EDT]

Clark Lindsey has some good further coverage of the sessions that I didn’t get to, or write about.

Administrative

Schmoozing

I need to circulate a little, and my tender derriere is killing me from sitting in this conference-room chair. Back later, perhaps to cover Jerry Pournelle’s talk after dinner.

[Update in the early morning, on my way to bed]

OK, so I didn’t work up the head of gumption necessary to blog the last session. It would have been kind of a pain, since I was on the panel to close out the meeting.

More later, after I’ve gotten some sleep, gathered my thoughts, and figured out what happened here this weekend.

Biting Commentary about Infinity…and Beyond!