RS-68 Rocket Engine Live fire test

[Ondelendo]

I am very happy to see the vidoe Live fire test of an RS-68 rocket engine as used for the Delta IV heavy lifting vehicle and Ares IV and V from you, hopefully the others also are happy for You

[bebeheuy]

I Love The Video Live fire test of an RS-68 rocket engine as used for the Delta IV heavy lifting vehicle and Ares IV and V. It Can Increase My Knowledge

[willamricard]

Nice Video RS-68 Rocket Engine Live fire test That You Share , So Very Nice Thanks You

[imegatrone]

I Really Like The Video Live fire test of an RS-68 rocket engine as used for the Delta IV heavy lifting vehicle and Ares IV and V. From Your

[bundawartini]

Your Video RS-68 Rocket Engine Live fire test Is Very Useful Sharing

[soberek]

This beast consumes approx. 1 ton of propellant a second, and gives not a poof of CO2. Just water vapour. This has to be the future - burning hydrogen. So beautiful in it's simplicity.

[tlages]

Now imagine the Ares V with 5 of these bad boys, and 2 SRB's. That's so mind blowing it hurts.

[Dittlelifferent]

@tlages it hurt someones mind... there wont be the ares 5 anymore.

[A86]

@Dittlelifferent - I dunno. It depends. Obama's HLV is pretty much worthless since there's nowhere to go with it yet he wants it flying by 2016. He wants to go to an asteroid but the Orion spacecraft cannot do that on its own. It needs a large ship to take it there (like "The Messiah" from Deep Impact) and there's absolutely no money in the tube for such a ship. There isn't even enough money to build Obama's DIRECT J-130 HLV and there appear to be no plans to increase funding sufficiently.

[A86]

@Dittlelifferent - I hate to say it but Obama sexed up this space plan as bad as George Bush did. Possibly worse since the main problem with CxP was more so Bush's utter lack of funding than a lack of a destination or lack of a plan for a craft necessary to get things where they need to go. But then again Bush can't be credited with that since he didn't come up with the plan.

Right now Congress and the White House are just blowing smoke to keep up the appearance of NASA.

[Ultimatestrife]

it sounds scary -.-

[Puzzoozoo]

A Saturn 5 F1 engine burns 4 tons of fuel per second, does this engine have a similar thirst? If so what is it?

[amourdutigre]

It truly is a sad thing that the dumbass in the white house cut the Ares program...

ADT

[Apollo580]

@amourdutigre He didn't cut it entirely. He said he would have the Ares 1 going by 2015. But I am a little disappointed that he still cut it.

[A86]

@amourdutigre - Looking at bills going through Congress it seems the Ares I might still be salvaged. The Ares V looks like it definitely will or be replaced by the Jupiter-246.

[amourdutigre]

@A86

We can only hope. Our future is in space, both exploration and exploitation of resources. We really need both reusable shuttle type transport and expendable heavy lift rockets if we are going to do anything in space. I think that we should go all out with Ares, Keep the shuttle alive and maybe even bring Apollo out of mothballs (with a better F1 first stage engine). But then, I am a dreamer...

ADT

[A86]

@amourdutigre - The Shuttle will be continued into 2011 with an extra mission (STS-135). After that it's definitely going to be retired. I don't see a future for it other than at most (and this is stretching it) 1 other additional mission in 2011.

We could fund Ares efficiently if Congress was willing to spend money where it counts instead of trying to cut spending to free up more money for bailouts and more adventures of dicking around in the Middle East.

[amourdutigre]

@A86

AMEN!

I would like to see the shuttle remain operational if for no other reason than to keep the Hubble repaired and fully functional. I think that the Hubble has contributed and is contributing more to scientific discovery than most of the other missions combined.

I would also like for (I guess nostalgia sake) to see the Apollo revived... That was one mighty rocket!

[EpiDemic117]

@amourdutigre I like lockheeds stageless idea. It could carry crew and supplies ALOT safer into space than any other known system. Sad that they cut funding towards it....

[billybobmacguyver]

This is an idea I have been trying to spread over the past couple of days: Who has seen the launch of the Ares IX? That rocket pretty much performed flawlessly using a single SRB as its first stage. Imagine instead of using the very complex and expensive liquid fueled design NASA plans on using for the Ares V booster, and just instead use a cluster of those Ares I boosters to achieve the same thrust/weight ratings. The cost reduction would be great Im sure.

[MightySaturn5]

yeah billy, at the very least its an interesting idea, I mean if you're going to go cheap, go cheap all the way.

I'm sure that idea along with countless others have been discussed at various NASA think tanks however what you've described seems simple and effective... solids are reusable, cheap and man rated -I'd be interested to understand NASA's reasons for going with a hybrid design.

[blablubb12345]

Solid boosters provide high thrust in a relatively simple and compact design while liquid engines are much more fuel efficient. That's the reason why solids are often used as first stages and liquid engines in main or upper stages.

[billybobmacguyver]

The whole point of a booster is just to make it 30-60 miles up so that a liquid fueled second stage can take over. Issues such as throttling and fuel conservation are not as much of a concern from lift-off to staging. The primary issue is to develop and sustain as much power as possible to lift the vehicle off the ground and out of the atmosphere. For that purpose, solid rockets seem to perform that task well, at a reduced cost.

[docmordrid]

RS-68 produces about 660,000 lb-f at sea level.

RS-84 produces 1,064,000 lb-f sea level

SpaceX licensed the RS84 from Rocketdyne sometime last year.

In the post-Augustine Commission world where Ares I and V are on the chopping block there could be a commercial heavy lifter competition, which SpaceX is now in a good position for.

It's also possible they could use it to launch USAF assets in such a booster.

Whatever: it sounds like they're working on a monster.

[apollo1268]

It is estimated that at it's current design the Ares V will produce 10 million lbs. of thrust at launch. In comparison, the Saturn rocket was an average of 7.5.

[MightySaturn5]

7.5 million was not an average but the lowest "nominal" thrust level expected, the actual numbers varied for each Saturn V however on later Apollo missions (and Skylab) it was very close to 8 million lbs of thrust.

By 1971 the 2nd generation of F-1 engine (F-1 "A") achieved its "man rating", simply put -if there was ever a second production run of Saturn V's these would have been the engines used -delievering a combined thrust of over 10 million lbs. thus going from 280 k (to LEO) to 350-400 k

[apollo1268]

O.K., point made. I didn't mean to offend your pride in the Saturn rocket my friend, if that's what I did. It was a great acheivement for its time. My dad worked for NASA in the 60's and I consider myself lucky to have seen the launch of Apollo 8. I was just trying to draw a general comparison between the two.

[A86]

@apollo1268 - The Ares V will probably produce more than that. Each segment of Shuttle SRBs seems to add 700,000 lbs/thrust. The Ares I 5-segment SRB first stage has a little over 3.5 million lbs (I think ~3.6 million)/thrust compared to the Shuttle's 4-segment SRB's 2.8 million lbs/thrust.

The Ares V 5.5-segs would probably generate 3.85 to 3.9 million lbs/thrust each. Each of the 6 RS-68Bs would generate ~750,000 lbs/thrust giving the core a thrust of 4.5 million lbs alone.

[nlucas4]

You know it's absolutely amazing 6 of these and 2: 5segment srbs will loft the ares 5 into orbit. From what I understand NASA hasn't recieved permission from the govt to produce this vehicle between the sound and God forbid and explosion of it. All I can say is I can't wait, and since I live in Orlando I will be able to see and hear it!

[A86]

They're gonna put six of these bad boys on the Ares V CaLV rocket. That would make it as a minimum 3 times more powerful than the Delta IV Heavy. 2 5-segment SRBs will be strapped to the sides as well further boosting the power and lift capability. Ares V will lift around 1.75 times what the Saturn V could lift.

[stockshunter]

liquid hydrogen and liquid oxygen.

[sumemrxlove]

worked at Stennis Space Center. this is a sweet test to see live.

[jumper86]

what work did you do there?

[StereoSpace]

Nice! Where's the marshmallows?

[ithicaplasma]

its like the gates of hell are opened up

[Insertboobies69]

Sweet