Delta IV RocketCam Videos 85
dmaas writes "High-quality RocketCam videos from the inaugural launch of Boeing's Delta IV rocket have just been made available (in MPEG-1 and Quicktime formats). Of note are the spectacular strap-on solid rocket booster separation, the extension of the second-stage engine nozzle, and the red-hot glow of ablative material in the second-stage engine. (disclaimer: my company prepared these videos for Ecliptic Enterprises, maker of the RocketCam system)" We did RocketCam photos for model rockets a few weeks ago, if you want to compare.
Obligatory (Score:4, Informative)
Large Quicktime link corrupted (Score:1, Redundant)
In a related story: conspiracy theorists claim this footage is fake because you can't see any stars in the background.....
nope Re:Large Quicktime link corrupted (Score:1)
i had no problems viewing it... it's worth giving it a shot anyway. i'm wondering if there were any shots you could do to make it more interesting: most of it is blinding glare from the combustion.
-k
Re:Large Quicktime link corrupted (Score:2)
Temporary Slashdot effect? (Score:5, Funny)
Re:Temporary Slashdot effect? (Score:2)
Re:Temporary Slashdot effect? - temp mirrors (Score:2, Informative)
New York mirror [def-con.org]
Italy mirror [def-con.org]
I've got a solution! (Score:2, Interesting)
Re:I've got a solution! (Score:2)
then revert to a genuine hyper-link to the real site.
Re:Temporary Slashdot effect? (Score:2)
Re:Temporary Slashdot effect? (Score:2)
I would encourage you to bookmark the site, and keep trying. They are very, very, cool.
ps. turn up your sound, lots.
Wow... (Score:4, Interesting)
It looks like right now they're using them for sattelite launches. I wonder, since space shuttles are gettin' kinda old and are and always have been rediculously expensive, will these Delta rockets eventually serve as the american's main launch vehicle for astronauts? That would be very cool.
To remain a little bit more on topic, they videos look great, all of this is very exciting.
Re:Wow... (Score:2)
Isn't NASA working on a next generation shuttle for human missions?
Re:Wow... (Score:3, Informative)
That's the idea on paper. However, this only works if the vehicle flies again and again; the current shuttle flight rate is about four to six a year (all four vehicles combined), and it requires a standing army of several thousand people to rebuild each one between missions - it is not a matter of "fueling her up, checking the oil, cleaning the windshield", more like swapping out the engines, replacing thermal tiles, and so on. And the airframes are aging, fast.
This puts the price tag for each flight in the $300 million range, or $10,000/kg (payload mass, not counting the hundred-ton shuttle deadweight). With that kind of performance, the expendable launchers are more economical. Or you could say that the current shuttles are not, in fact, reusable.
Many space advocates believe that we now have the technology and know-how to cut those costs by a large factor, but that NASA and the big players have no interests in doing so. Check this previous /. story [slashdot.org] about "How the West wasn't won".
They have just relaunched an orbital spaceplane program to alleviate the ISS' dependency on Russian Soyuzes; this would be a small (reusable?) vehicle housing up to ten people, launched either by a shuttle or a Delta 4 Heavy, to be used mainly as a lifeboat for the ISS so that more than three people can stay there for extended periods.
Other than that, the SLI program is more or less aimed at replacing the shuttle in a two or three-decade timeframe, and will probably produce yet another expensive all-in-one monster vehicle, if anything.
Re:Wow... (Score:1)
Maybe. But this assumes that NASA is actually interested in reducing the costs, whereas a widely accepted theory is that they are more interested with playing with new technology, and keeping their current workforce and budget. Very commendable, but if the next vehicle requires further development instead of using off-the-shelf technology, and employs as many workers for its operations, how can it be cheaper?
NASA is a technology agency. That's its mission. It is not structured to design economical mass-transportation to orbit systems, and should not be trying to - for people are then convinced that their way is the only one, high costs for few people.
Re:Wow... (Score:3, Insightful)
Re:Wow... (Score:2)
The Delta 4 that was just launched has a payload capacity to low Earth orbit of over 11 metric tons (24,000 pounds). The heavy version will double this. Atlas 5 and Ariane 5 are at the same level or better.
The latest Soyuz-TMA (3 people, 14 days life support, 6 months orbital storage - little cargo, agreed) is a little over 7 tons.
Conclude.
Re:Wow... (Score:2)
Re:Wow... (Score:2)
It depends on the rocket, it can be as low as 1 in 30. Which doesn't prevent the Russians from sending people on expendable rockets, as they have a launch escape system (and it was actually used a couple of times), just like the Saturn 5 and its predecessors had, for Apollo. In fact, I think the shuttle is the only manned launcher ever in which people were killed on take-off...
If we are to develop a space industry, then indeed these reliability rates are way too low.
Forward (Score:5, Funny)
Kind of makes your 37 minute commute to work seem slow, doesn't it?
Re:Forward (Score:2)
Shuttle Cam (Score:2, Informative)
Re:Shuttle Cam (Score:2)
37 minutes (Score:5, Funny)
But will the web server last that long?
Someone, get out there and wipe off the lens! (Score:2, Funny)
Wow (Score:5, Insightful)
Re:Wow -- IT'S FAKE !!! (Score:1)
Wastefulness... (Score:4, Interesting)
Re:Wastefulness... (Score:2)
Any concern for people/ships/planes that might be flying underneath where the parts fall away or is some attempt made to ensure that the places where the stages drop is 'empty'?
Re:Wastefulness... (Score:1)
Re:Wastefulness... (Score:2)
Yah, like electromagnetic catapults. Heinlein was on the right track there.
Re:Wastefulness... (Score:2)
You haven't priced metals recently, have you? The raw materials for a decent sized rocket cost at most a hundred thousand dollars - not even a million. What's expensive is the production of the parts from those raw materials. That problem is easily licked - make a few thousand rockets, and the production cost drops dramatically. I lost exact count, but the total number of launches of all types from Earth in the last 50 years is something less than five thousand. We are still in the very early stages of the Space Age.
Re:Wastefulness... (Score:3, Insightful)
Take, for example, the Saturn V moon rockets. This behemoth rocket, standing who-knows-how-many stories tall, and all you get back is this teensy little capsule with three astronauts in it. Wasteful, eh?
Well, yes it is, but engineers plan that wastefullness into the system. For example, the massive Jupiter engines that were on the first stage of the Saturn V were designed to work once, and only once. As such, you immediately can dispense with one of the largest expenses of the shuttle fleet -- namely, the tear down and inspection process following every launch. There's nothing to inspect when your launch system is expendable. Ironically, the shuttle costs more per pound of payload than the Saturn V did, even taking inflation into account, and the inspection procedures are a large part of this.
Take it a step further and you'll see that reliability comes into play. How many shuttle launches have been delayed or scrubbed due to equipment failure? Quite a few, and it's because the shuttle has sacrificed much to the altar of reusability. Weight, the evil bugaboo of the space program, has been ruthlessly trimmed to the point where things aren't as overengineered as the were in the Apollo days. Such cuts had to be made or the shuttle wouldn't be able to carry as much as a postcard into orbit. Apollo, by contrast, was rarely delayed because the equipment wasn't being pushed as hard as the Shuttle is. Again, Saturn V's were designed with finite lifetimes, and the engineers used that to build cheaper, more reliable, but somewhat less efficient systems.
Lastly, reusability comes at a heavy cost in payload capacity. The shuttle can only reach low earth orbit, and only a few orbital trajectories at that. Why do you think so many companies still use Delta's for satellite launches? It's cheaper and it's more reliable, otherwise you'd bet that companies would be bashing down NASA's door trying to get space on a shuttle launch.
I'll leave you with a good analogy from the motorsports world: drag racing. A Top Fuel dragster is designed to do one thing -- run the quarter mile as fast as possible. To that end, the engines are designed to be torn down and practically rebuilt in between runs, and are junked after a very few runs. Why is that? Well, parts designers realized that to design a longer, more reusable lifespan into these engines would either diminish their competitiveness (heavier components last longer but hurt performance) or cost an unholy amount of money in exotic materials and technologies. The analogy is not complete, of course, since drag engines still cost a fortune, but you get the picture as big, dumb boosters do not cost a fortune with respect to the shuttle.
The shuttle is, and has been, a political jobs program. It should never have been made, and should not be continued. Manned spaceflight to LEO could be just as easily accomplished with cheaper, expendable boosters like the ones we were using forty years ago. In fact, with the technology advances of today, those yesteryear boosters could be much cheaper to operate today than they were then.
Wow (Score:1)
Server Down - Straight DL from Boeing here (Score:5, Informative)
Download a movie directly from Boeing here [boeing.com].
QT format. The site also has Real Audio format.
Knunov
I've been trying for weeks--anyone have a mirror? (Score:2)
The requested URL Bandwidth is temporarily unavailable." Did anyone mirror them?
Karma - going down (Score:1)
Large QT Mirror (Score:2)
http://66.111.35.100/d4_launch_2002-11-20.mov [66.111.35.100]
Re:Large QT Mirror + Mpeg (Score:2)
http://66.111.35.100/delta-iv-mpeg-lo.mpg
http
Dear God - Help Me! (Score:2)
Should I mod this thread down to try to save my server?
Evan Dorn,
Ecliptic Enterprises Webmaster
p.s. Thanks a bunch, Dan.
Uhh .. huh huh (Score:1)
Designed and Built... (Score:1)
More RocketCam videos of EZ-Rocket also available (Score:2)
--Mike
www.xcor.com [xcor.com]
Brings tears... (Score:1)
I was a computer tech and systems analyst in the aerospace biz for seven years, and here's some of my thoughts as I watch this footage:
Rocket building is about overcoming physics in a brute-force fashion, because budget concerns weigh heavily into the issue of getting your payload to low-Earth or geosynchronous orbit.
Those payloads have varying degrees of tolerance to G-forces, thus we can't just put everything in a Mother-of-All-Cannons and shoot them into space.
Most payloads are lifted into orbit as if there were human occupants included, whether or not there are such in the payload.
Most rocket technology, by and large, is at this point 40 years (or better!) old. I have actually been on projects where we have had to call engineers out of retirement after 30 years because their paper drawings, which hadn't yet been digitized, were starting to fade, and we need to know WHY they had designed certain structural and electronic features into their work.
Yes, solid fuel boosters and the shuttle are inefficient ways to get to space. We knew this before we designed the shuttle. But there is a cost-vs-efficiency trade-off which must be made, as well as a 'will to get the job done' factor. We no longer have a 'do-or-die' ethic as regards space utilization. Perhaps another Sputnik is in order...
Re:Brings tears... (Score:1)
Duct tape (Score:2)
Upper right hand corner.
Around the pipe.