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photos from the launch of ARCA
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Launch Director ![]() ![]()
Joined: Wed Aug 11, 2004 6:23 pm
Posts: 10 Location: Romania ![]() |
you can see them on the ARCA*s site at this link : http://www.arcaspace.ro/ro/lansare_Demonstrator2B.htm
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Space Station Member ![]() ![]()
Joined: Mon Aug 16, 2004 7:09 pm
Posts: 485 Location: Maastricht, The Netherlands ![]() |
i think i missed something in this ARCA story, but isn't their rocket a model rocket? Looks very small to me (nofi), so what's the deal with ARCA, i simply don't get it.
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Spaceflight Trainee ![]() ![]()
Joined: Sun Aug 15, 2004 4:30 pm
Posts: 37 ![]() |
on their front page:
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Spaceflight Participant ![]() ![]()
Joined: Mon Jun 21, 2004 1:42 pm
Posts: 59 ![]() |
siggy wrote: i think i missed something in this ARCA story, but isn't their rocket a model rocket? Looks very small to me (nofi), so what's the deal with ARCA, i simply don't get it. Firstly, it's not a "model rocket", it's a prototype, half the scale of the operational vehicle. Secondly, it's the world's first reusable monoprop rocket engine made from composite materials. The "deal with ARCA" is that they're accomplishing a heck of a lot with very limited resources. |
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Space Station Member ![]() ![]()
Joined: Mon Apr 12, 2004 4:16 am
Posts: 322 ![]() |
Yeah, ARCA is making some serious progress in engine development. I bet they are a big deal at home. Does anyone know if their engine is pressure-fed or uses turbopumps?
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Joined: Mon Aug 16, 2004 7:09 pm
Posts: 485 Location: Maastricht, The Netherlands ![]() |
Stellvia wrote: siggy wrote: i think i missed something in this ARCA story, but isn't their rocket a model rocket? Looks very small to me (nofi), so what's the deal with ARCA, i simply don't get it. Firstly, it's not a "model rocket", it's a prototype, half the scale of the operational vehicle. Secondly, it's the world's first reusable monoprop rocket engine made from composite materials. The "deal with ARCA" is that they're accomplishing a heck of a lot with very limited resources. Thanx for the explanation ![]() |
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Space Walker ![]() ![]()
Joined: Wed Aug 11, 2004 2:05 pm
Posts: 173 ![]() |
umm are the combustion chamber and the nozzle made of composite materials too? cause I don't buy that.
_________________ Thank you very much Mister Roboto For helping escape when I needed most Thank you Thank you |
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Space Station Member ![]() ![]()
Joined: Mon Apr 12, 2004 4:16 am
Posts: 322 ![]() |
a ceramic composite matrix?
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Spaceflight Enthusiast ![]() ![]()
Joined: Thu Oct 07, 2004 5:41 pm
Posts: 1 ![]() |
ok, ok. That being said, it really does resemble a model rocket and the diminutive size of the prototype didn't help that.
furthermore, while its fair to say they are doing quite a bit with a limited budget, they are also only really scaling up existing technology. Yeah, SS1 had existing tech all over it, but in this case, it's tech a child puts together for roughly a total price of 40 bucks. |
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Joined: Mon Jun 21, 2004 1:42 pm
Posts: 59 ![]() |
Diminutive size? Demonstrator 2B is a half-scale prototype and roughly 20ft long.
Pressure-fed peroxide-ethanol rockets with composite fuel tanks are childish?? Don't think I've seen anything like that in Toys'R'Us recently... ![]() |
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Space Walker ![]() ![]()
Joined: Wed Aug 11, 2004 2:05 pm
Posts: 173 ![]() |
Stellvia, I'm aprt of a small rocketry club that is building a 5 foot long liquid fuel rocket with pressure fed engines. we purchased the kit from Canada for $1000.
so you're right, the ARCA rocket is not a toy, maybe a good project for a large rocketry club, like the guys that recently senta model rocket into space. I think what he meant is that, even if you scale your demo vehicle by a factor of two, it still won't be able to carry three people in space so its presence in the X-Prize cmpetition was not justified, but merely a publicity stunt. _________________ Thank you very much Mister Roboto For helping escape when I needed most Thank you Thank you |
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Joined: Mon Jun 21, 2004 1:42 pm
Posts: 59 ![]() |
109Ace wrote: Stellvia, I'm aprt of a small rocketry club that is building a 5 foot long liquid fuel rocket with pressure fed engines. we purchased the kit from Canada for $1000. so you're right, the ARCA rocket is not a toy, maybe a good project for a large rocketry club, like the guys that recently senta model rocket into space. I think what he meant is that, even if you scale your demo vehicle by a factor of two, it still won't be able to carry three people... You got any figures to justify that assertion? It's worth pointing out that the Demonstrator-2B launch did NOT show the full performance of the prototype. The rocket was loaded with less than 20% of a full tank of propellant, because of (a) weather and (b) range safety limits. 109Ace wrote: ... in space so its presence in the X-Prize cmpetition was not justified, but merely a publicity stunt. That's pretty patronising ![]() |
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Spaceflight Participant ![]() ![]()
Joined: Mon Oct 04, 2004 4:27 pm
Posts: 72 Location: The Land of Hurricane Charley ![]() |
Stellvia wrote: Diminutive size? Demonstrator 2B is a half-scale prototype and roughly 20ft long. Pressure-fed peroxide-ethanol rockets with composite fuel tanks are childish?? Don't think I've seen anything like that in Toys'R'Us recently... ![]() Someone needs some anger-management training.. lol. _________________ "Floating down the sound resounds around the icy waters underground.." |
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Space Walker ![]() ![]()
Joined: Wed Aug 11, 2004 2:05 pm
Posts: 173 ![]() |
Stellvia wrote: That's pretty patronising ![]() ahh she set herself up for this one ... Carmack can do anything because he made Doom ![]() ![]() ![]() ![]() ![]() ![]() _________________ Thank you very much Mister Roboto For helping escape when I needed most Thank you Thank you |
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Space Station Commander ![]() ![]()
Joined: Mon Oct 06, 2003 9:22 pm
Posts: 844 Location: New York, NY ![]() |
Stellvia wrote: That's pretty patronising Why should ARCA be any more of a "publicity stunt" than say Armadillo or STC, neither of which has had a successful launch of a full-scale vehicle yet? Carmack seems to think that he could build an X-prize-class vehicle using mixed-monoprop engines, so why couldn't the Romanians do the same? i think it's because we're racist. (i'm being sarcastic) _________________ Cornell 2010- Applied and Engineering Physics Software Developer Also, check out my fractals Last edited by TerraMrs on Fri Oct 15, 2004 12:46 am, edited 2 times in total. |
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