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Archive for Rocket Science

Falcon 9 Maiden Launch Successful

UPDATE: added NASA’s coverage of the launch, from liftoff through (I’m guessing) max-Q.

Congratulations to SpaceX on a successful first launch of the Falcon 9. With any luck, they just drove a 180-foot-long aluminum stake through the heart of Ares-I. Heh.

It’s amusing, though, that a company founded by a dot-com millionaire can’t seem to get a webcast video to work properly. But I suppose there were other, more important concerns this morning.

Oddly enough, the launch was originally scheduled (the aborted attempt) at the same time as the biweekly all-hands teleconference with the LM Orion management team — otherwise known as the “everything is fine, don’t panic” meeting.  I missed the first part of the meeting, but the portion I sat in on was dominated by voices sounding like relatives of Milton from “Office Space”, asking tediously detailed and irritatingly petulant questions about layoff notices, benefit rollovers, job transfers and other HR matters “for when the time comes”. A very strange juxtaposition.

One of the good things about the Falcon 9 success is that it will help still some of the critical voices speaking out against commercial crew and cargo, and newspace in general. Or if not still them, at least force them to find something else to complain about regarding newspace, much as successful missile defense intercepts forced critics who claimed it was physically impossible to pull off an intercept to find some other rationalization for their opposition. Had the launch failed, it would have been much more difficult to establish credibility for newspace — with this success, however, the industry can probably tolerate a few less than successful follow-on launches before losing the credibility established by SpaceX.

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Pad Abort Test Launch Video Compilation

Still no public pics of the LAS “lawn dart”, but there’s lots of fun eye candy in this video, especially the beautiful slow-motion footage at the beginning of the motor ignition:

A few interesting things to note:

  • The impressively crisp black and white footage of the reorientation and jettison
  • The docking-hatch-view of the forward bay cover jettison and chute deployment
  • The amusing (but very brief) cameo appearance of the jettisoned LAS in the background of one of the chute deployment cuts, weathervaning into a point-down attitude
  • The firing of the attitude control motor, which appears as eight skinny flames near the tip of the LAS stack
  • The fact that there is NO visible plume damage on the capsule or the LAS adapter cone (especially surprising given the incinerated appearance of the cone after impact with the desert floor)
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PA-1 Test – A Little TOO Successful?

A little bit behind schedule (it was supposed to launch before the 2008 Presidential election), the Pad Abort 1 test launched at White Sands yesterday — and would have subjected any astronauts inside to 16 gees. Oops.

The one-minute, 35-second test at White Sands Missile Range, N.M., took the capsule higher — 3,886 feet — and farther down range — 6,919 feet — than anticipated.

“That motor was quite a performer,” said Deputy Test Director Jay Estes. “You might not want to be riding in there.”

That’s the truth in more ways than he intended, I’m sure. (And I can’t be the only one who finds it amusing that one of the guys launching a big solid rocket is named “Estes”.)

Were the program to be continued, this excess capability might actually be a good thing to have, given how much the capsule has changed since the PA-1 design was frozen (more to the point: how much more it weighs now).

Landing was gentler than expected, but a heavier capsule would work against that:

The boilerplate capsule floated down to the desert floor under the three red-and-white main chutes, slowed enough by them that the telemetry system continued to operate after impact. Estes said test engineers received all of the data they expected to receive.

“It was a beautiful flight,” he said. “That went like clockwork from what I could see.”

Don Reed, the NASA test director, said the capsule touched down at about 24 feet per second (fps), less than the 33 fps impact velocity predicted at the outset. That sort of data will be helpful as NASA refines its predictive models for future developments.

The best part of the test, though, was that the discarded motor stack turned into an enormous lawn dart. I don’t have permission to share the pics that were floating around the office today, but the shots of the burning adapter cone sticking up out of the desert floor are awesome — since the entire 40-odd-foot-tall tower above it is buried nearly vertically into the ground, along with about 40% of the cone itself, with just a small bulge of dirt humped up around it. It’s such a perfect needle-jab that it’s ridiculous. As for the rest of the hardware, the early reports suggested that, given another LAS, the boilerplate capsule and even the separately-jettisoned forward bay (parachute) cover could have been launched again in short order.

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For Whatever It’s Worth…

PA-1 is scheduled to launch at 9am EDT  Thursday May 6.

Orion launch abort  vehicle

NASA’s Pad Abort 1 will be the first fully integrated flight test of the launch abort system being developed for the Orion crew vehicle. The test is part of an ongoing mission to develop safer vehicles for human spaceflight applications.

Hmm…then again, maybe it won’t be.

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I Don’t Know How They Did It

After spending most of last week running a working group tasked with re-configuring the forward (parachute) bay, I really have to wonder how the Apollo guys did it. Especially without the convenience (in a manner of speaking) of CAD models.

I wish I could have seen the Apollo configuration team at work.

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One Good Use for ISS

Whatever else good eventually comes out of the ISS, demonstrating VASIMR — and then using it to routinely reboost the station — might just be its best sci/tech achievement.

[h/t: Instapundit]

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Ares 1-X Launches

Dammit.

Now we’ll never be able to move to an EELV.

UPDATE: Here’s video…

Pity they didn’t show the ignition and initial liftoff from the onboard camera – that would have been fun to watch.

But as Rand says: “Another SpaceX could have been founded and another Falcon 9 developed for the cost of that test. Which tells you all you need to know about the cost effectiveness of the NASA jobs program.”

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Partly Cloudy With A Chance of Falling Debris

Ares 1-X is set to launch on Tuesday, weather permitting.

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What I Did On My Summer Business Trip

For the first time in twelve years of working various manned space programs, I finally made my first business trip to KSC last week.

The second-best part? Having extra time after meetings were over and a suitable facility pass to drive around to the various facilities and get lots of pictures.

LC-34

The best part? Getting up-close to all three orbiters while all three are still in operational condition. 

I’ll post a sampling here as soon as I get the pictures sorted and uploaded to Flickr, including shots of SpaceX’s pad, Ares-1X, and a couple of before/after comparisons with my grandparents’ slides from their visit to KSC in 1965.

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The Last SSME Test?

Last year I saw the scrapping of the Orbiter tooling, this May I got to see what will most likely be the final Shuttle External Tank going through the major weld stations at Michoud, and now they’ve run the final SSME test at Stennis:

With 520 seconds of shake, rattle and roar on July 29, NASA’s John C. Stennis Space Center marked the end of an era for testing the space shuttle main engines that have powered the nation’s Space Shuttle Program for nearly three decades.

This was the final planned test of a main engine for the shuttle, which currently is set to retire next year. More than 34 years ago, on June 27, 1975, Stennis engineers conducted the first test on one of the world’s most sophisticated rocket engines…

At one point, all three test stands at Stennis were involved in shuttle engine testing. Today, testing for the program occurs on the A-2 Test Stand as Stennis engineers prepare the A-1 Test Stand for testing the J-2X engine currently in development. That engine will help power the Ares I and Ares V rockets that will take humans back to the moon and possibly beyond as part of NASA’s newest space challenge – the Constellation Program.

NASA assigned Stennis to test space shuttle main engines in 1971. Prior to the first shuttle flight, Stennis engineers conducted some 500 tests on the engine and its components. They also test-fired the three-engine cluster arrangement – the main propulsion test article – that is used to power the shuttle, an accomplishment some called the facility’s “finest hour.”

Luckily, I got to see one of these tests back in April 2001:

SSME Hot Fire, April 21, 2001

Quite impressive – even from only about 200 yards away, the sound was felt more than heard.

With any luck I’ll get to see one or more of the Orbiters up-close next week while at KSC on business, but I still need to fit in a launch trip before the program ends.

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