Full Duration 101 sec rocket engine test fire

[albyva]

You should put copper tubing around the nozzle, hook it to a compressor and tank of liquid nitrogen. You need to pull the heat away from that nozzle.

[Armigo91]

As for rockets, we already experimented hydrogen on dozen of flights. Why we still dont have methane as a propellant is unknown to me. Its more efficient, can either be more efficient or deliver more power.

And it doesnt require cryogenic fuels as it is cryogenic in itself under pressure.

[Armigo91]

spoon the ingredients gets mixed. This same principle works in the formation of a born solar system. All kinds of ingredients clumb together (like rock, iron, other minerals, nitrogen, oxygen, hydrogen, and H2o obviously.

All those materials were mixed in the accretion soup in the formation of the early solar system.

That means that any any any planet must and will have water, whether its frozen liquid or air.

Your a naive hypocriet religious moron just to question that already fact.

[Armigo91]

But it drives us to put estimates or barriers on things we cant further look into. You know, thats perfectly fine with me. But its ridiculous and your a total brain defected mongol to even consider saying, earth is the only example of a planet with water, and theres one subject of people interpreting that as it was said. ANd theres a subject of people that take it as, this is all there is.

Gravity is like a cup of soup.

It has dozen of ingredients to it. And when your swirl it around with your

[nivekevinutz]

what does hydrogen turn into when you burn it?

[Armigo91]

@nivekevinutz

Im not gonna give you the direct answer. But last time i checked the universe was full of sparks and hydrogen.

But somehow mysteriously, perhaps with help of * kough* god.

All water and theirfore life tht exists is here centered on earth.

We are actual raising the question whether water exists on the moon or mars. Which is obvious logic, then why are the stars burning nuclear fusion?

So what we have said for decades and many still do. We see liquid water on earth, but all other

[Armigo91]

planets and moons likely havent because we cant see it. Hello!!!!

90% of the visible matter in our universe is hydrogen. And you only need 1 spark and some oxygen to light it.

And somehow its assumable to say the earth is the only planet in the universe that has large quantities of liquid water. Im not sure about the reasoning of many people on this planet. But i find saying that as a fact far more further fetched then saying aliens exists in large quantities.

AFter all its not my reasoning

[crankybloke]

@nivekevinutz water. When hydrogen (H) combines with oxygen (O) it burns (oxidises). Two hydrogen atoms (H2) combine with one oxygen atom (O) to form H2O, water.

[concordatthefort]

wouldn't want to walk to walk behind that!

[MrJavier0103]

i wanna touch it

[Meanie010]

How much longer can you burn it before the nozzle fails? Is it a graphite nozzle? What sort of fuel are you using?

[drewnickel]

wow, impressive, what's the thrust in lbs? also about how many feet would that launch your rocket

[halfcastdeluxe]

The perfect sword!

[OnnomonnomonnO]

lol wow...the dust bellow the rocket nozzle

[MrCodester1]

and you forgot the marshmellos...what a shame

[tracemaster100]

the next generation of cigarette lighter.

[rhelbren]

Where can i get a chunk of graphite that big??

[TacticalShutdown]

nice test..... infact, a glorious achievment, but on a more immature note, ten bicks says you won't grab the tip when it's glowing ;) I do admire the consistancy of the burn. well done indeed.

[hunterhalo2]

Shock diamonds!

[minato784]

the gravel below is steaming lol

[motordude1234]

dude! look at the rings in it!

[themainproblem]

May I ask what the thrust was? 

[Stover36]

Sustainer engine?

[TheeOz]

how much thrust does it produce?

[stewartabesha]

101 sec thats more than great to pat the earth g-ground pull

[vexviper]

Are there impurities in the fuel? It's hesitating!

[roboticmehdi]

propellants ?

[diapysik]

damn when you fire it do you risk hitting low flying aircrafts?

[toribasher123]

whose up for barbecue

[1BustedMyth]

VERY NICE !

[derekroolz]

DAMN!

[darian1968]

video is good . but the casing started to over heat to red hot at 33 seconds and was creaping up till it neared the bulbus area or wider part in it. I think the materials need to be re done just to be safe. other wise it could blow glad you saw it turning that way. Not fully safe TBH! good try.

[emerychandler]

not bad at all, you could put a small rocket into space with about 3 of those (dont launch from your back yard check with faa regulations) anywho there are to problems with this thou the first is your combustion is melting the opining of your engine and combined with friction in the atmosphere it will melt you may want to strenghtin that part or have a cooling system to keep down that heat,

the secound is it likes you dont have a nozel, its called a warner von braun nozel but this could fly

[gblastoff]

Never walk in front on this mother crucker.

[elliotmotoX]

how big is it?

[smokescreenninja]

why isnt it very loud?

[yop911]

camera can't grasp the full noise level

[Xxero0]

IMA FIRIN MAH LAZAH!!!!

[XxstryaexX1]

lol if you in space w/ that...it would be an awesome ride!!!!

[teambnova]

The latest test is now posted (Video response above) youtube (dot) com /watch?v=NyFpJ7zsUiA

[MrAnon95]

I can't help but stare at the rocks on the ground.....

[SuperTrooper9000]

No thrust information and although it worked well for 101 sec the white nozzle would fail if run to much longer.

[teambnova]

You must not have seen the the latest hot fires.

[noreplyism]

@SuperTrooper9000 If the rocket was moving through the air at high speed wouldn't the white hot nozzle keep cool?

[caleamabob]

WOW what fuel are u using?

[douro20]

Propane/Nitrous oxide

[miniatureme95]

it was white hot!!!!!!!!!!!!

[teambnova]

You think that's white hot? Check out our latest test (Video response above) youtube (dot) com /watch?v=NyFpJ7zsUiA

[miniatureme95]

@teambnova maybe not but it was getting there

[waspsnest]

why is there no divergent part of the nozzle, or is there a smaller throat further inside the chamber

[teambnova]

The interior profile is not the same as the exterior profile.

[waspsnest]

thats what i thought, it still dosent look like much of an expansion ratio. it all depends what pressure your getting in the chamber. but then ive not done any rocket calcs for at least 10 years

[intheringboxing]

can i put one of these in my estes model rocket?

[fmeriqui]

wow!!

how much thrust can this thing provide?

[teambnova]

300 lbs.

[fmeriqui]

cool!!

[elite335]

OOOOH

[RoboTekno]

just shy of a million Newton*Seconds

[johnbell58]

What is the chamber pressure and the specific impulse, pray tell.

[teambnova]

That's proprietary information.

[shizzle5150]

nice burn, nice machining, nice all around. When the spece program has failed us because of exorbitant spening, I hope that one day people will be smart enough to get off this rock. Taking calculated risks is what did it for appalo missions so lets give people a little breathing room on the regulations. We might just find a more efficient means.

[HavazikFerric]

I count 5 - 7 diamonds, good job!

[mahoo6767]

REALLY HIGH!!!!!!!!

[hziggles]

jesus how high would that have gone

[johnbell58]

I am building a 200 pound thrust engine, similar to that one, ablative with graphite, but a 4 second burn, in a flying rocket, and using nitromethane and nitrous oxide, which gives about a 1:1 volume ratio. What do you think of that propellant combo?

[teambnova]

we have no experience with those materials

[VooDooRocketry]

Be very cautious of how you pump the nitromethane as it can detonate when put under pressure is. It took 40 years to find out nitro can detonate under pressure though possibility increases with temperature. When they did it was catasrpophic. Research, research, research.

[johnbell58]

Yes, I am aware of it, that is why I wonder, if i use a variant of RC model fuel, which has a few percent each of oil and alcohol, if that would make it less prone to detonate under pressure. Do drag racers use it at 100 percent or is it cut just a bit?

[VooDooRocketry]

Drag racing used to be 90-95% nitro, they have been mandated to lower the nitro in the interest of cost savings. I will not dispense information which I feel is accurate as I am not the expert, I would only tell you to contact a Nitro fuel supplier like VP fuels and ask their experts your questions. They have the experience.

[bktech333]

good luck

[madvlad666]

How did you fabricate that nozzle?

Is it machined from a billet, or is it laid up incrementally around a die and then densified somehow, or ...?

How much does it cost?

[teambnova]

machined from a billet

[Zoomer30]

Looks like the test stand wanted to take off when it fired up :)

[TGAcodes]

wow! the nozzle is red hot by the end. what material did you use in the nozzle?

[ratodoesgato]

nice! what fuel are u using?

[teambnova]

propane & nitrous oxide

[DTHRocket]

Wow! Is it powerful enough to fly in a launch vehicle?

[teambnova]

Yes, if you consider the ultralightweight Lauryad Lunar Lander to be a launch vehicle.

The engine can be scaled up to thrust levels sufficient for a small launch vehicle.

[Ferrariman60]

How much thrust?

[teambnova]

200 lbs.