virgin galactic
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loyal ginger wrote:
it probably puts out enough emission that is equivalent to a million cars running for a year
Probably not because Rocket Fuel is very clean it just emits water vapor. I am assuming that Virgin Galactic uses rocket fuel.
You are probably right.
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loyal ginger wrote:
it probably puts out enough emission that is equivalent to a million cars running for a year
Probably not because Rocket Fuel is very clean it just emits water vapor. I am assuming that Virgin Galactic uses rocket fuel.
That's only true for LH2/LOX rockets, many rockets use RP-1/LOX for the first stage since it's cheap (but a bit heavy for use in other stages) I can't quickly find what exactly they're using for this SpaceShipTwo thing (wow that name is really original), but it involves solid fuel which can not be just pure H2, so it will have to spit out something else than water as well
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loyal ginger wrote:
it probably puts out enough emission that is equivalent to a million cars running for a year
Probably not because Rocket Fuel is very clean it just emits water vapor. I am assuming that Virgin Galactic uses rocket fuel.
Rama Krishna Vavilala wrote:
Rocket Fuel is very clean it just emits water vapor
And is the industrial process to make it as clean?
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loyal ginger wrote:
it probably puts out enough emission that is equivalent to a million cars running for a year
Probably not because Rocket Fuel is very clean it just emits water vapor. I am assuming that Virgin Galactic uses rocket fuel.
You're assuming that all rocket fueld is liquid hydrogen/oxygen. That simply is not the case with Spaceship 1 or 2. IIRC, the basis of the "rocket fuel" for SS1 was a burning solid rubber and nitrous oxide for an oxydizer. My chemistry math is a bit old, but I don't believe that reaction results in water vapor.
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2006, 2007, 2008
But no longer in 2009... -
It goes straight up to about 62 miles high and then falls back down to basically the same spot. It's not real space flight. The weightless experience only lasts for about 5 minutes. The re-entry is too easy because it does it at a much lower speed than a space shuttle or a returning satellite -- ther is no excitement here. And it costs $200K for a ticket! On the other hand, it probably puts out enough emission that is equivalent to a million cars running for a year (just a guess). (Any research on this?) California is supporting this? (See http://news.cnet.com/8301-19514_3-10410601-239.html[^]) No so good.
Oh, I would not worry about too much in the way of emissions. "Looking to the future, Rutan said "I believe, to satisfy this market, there will need to be between 40 and 50 spaceships." All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
Charlie Gilley You're going to tell me what I want to know, or I'm going to beat you to death in your own house. "Where liberty dwells, there is my country." B. Franklin, 1783
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You're assuming that all rocket fueld is liquid hydrogen/oxygen. That simply is not the case with Spaceship 1 or 2. IIRC, the basis of the "rocket fuel" for SS1 was a burning solid rubber and nitrous oxide for an oxydizer. My chemistry math is a bit old, but I don't believe that reaction results in water vapor.
A guide to posting questions on CodeProject[^]
Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...Dave Kreskowiak wrote:
burning solid rubber
Seriously? That sounds crazy! Wouldn't solid rubber be heavy as hell? I don't know what the alternatives would be, but that just sounds weird! //edit On looking around our good friend wikipedia, I found that SS1 (and maybe SS2) use a Hybrid rocket[^] with HTPB as part of the fuel. The "B" in HTPB is Butadiene, and is apparently used in synthetic rubber. Damn, ya learn somethin' new every day!
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modified on Tuesday, December 8, 2009 2:37 PM
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Oh, I would not worry about too much in the way of emissions. "Looking to the future, Rutan said "I believe, to satisfy this market, there will need to be between 40 and 50 spaceships." All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
Charlie Gilley You're going to tell me what I want to know, or I'm going to beat you to death in your own house. "Where liberty dwells, there is my country." B. Franklin, 1783
charlieg wrote:
All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
I'd be more worried abotu emissions at that point. Parts of dead overly rich and spoiled jerks raining down on me is not my idea of good pollution control.
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charlieg wrote:
All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
I'd be more worried abotu emissions at that point. Parts of dead overly rich and spoiled jerks raining down on me is not my idea of good pollution control.
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I have no idea what nitrous oxide is but it's in the piece of news (the link in the original message). It says "A hybrid rocket motor burning solid propellant with nitrous oxide then will boost SpaceShipTwo onto a steep trajectory to an altitude of more than 62 miles." Looks like it's not the liquid fuel that's used in space shuttle.
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You're assuming that all rocket fueld is liquid hydrogen/oxygen. That simply is not the case with Spaceship 1 or 2. IIRC, the basis of the "rocket fuel" for SS1 was a burning solid rubber and nitrous oxide for an oxydizer. My chemistry math is a bit old, but I don't believe that reaction results in water vapor.
A guide to posting questions on CodeProject[^]
Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009... -
always at least one complainer in the crowd..... ;P
Charlie Gilley You're going to tell me what I want to know, or I'm going to beat you to death in your own house. "Where liberty dwells, there is my country." B. Franklin, 1783
just don't like ash on my clothes is all. ;)
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Oh, I would not worry about too much in the way of emissions. "Looking to the future, Rutan said "I believe, to satisfy this market, there will need to be between 40 and 50 spaceships." All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
Charlie Gilley You're going to tell me what I want to know, or I'm going to beat you to death in your own house. "Where liberty dwells, there is my country." B. Franklin, 1783
In all the movies the billionaire visionary always dies while the ex-con gone straight protagonist gets the girl. ie, a stowaway will likely sneak on board, running the weight and balance causing a life or death scenario wherein drama will unfold. The self-centered rich guy will be executed by the pilot in command. The pilot in command will die going on a suicide mission outside the craft to fix a problem that can only be solved by human sacrifice. The co-pilot has never landed before without computer systems, which of course break-down. A hull breach occurs during re-entry killing everyone who actually paid for a ticket. And through the tragedy a life lesson will be learned but the important part is the co-pilot and the stowaway become romantically involved and are treated as hero's for their courage.
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Wjousts wrote:
dxlee wrote:nitrous oxide It's the oxidizer.
And it's nitrous.
I wanna be a eunuchs developer! Pass me a bread knife!
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Oh, I would not worry about too much in the way of emissions. "Looking to the future, Rutan said "I believe, to satisfy this market, there will need to be between 40 and 50 spaceships." All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
Charlie Gilley You're going to tell me what I want to know, or I'm going to beat you to death in your own house. "Where liberty dwells, there is my country." B. Franklin, 1783
charlieg wrote:
All it will take is one of these to come down in VSP mode (very small pieces), and your emissions concern will evaporate.
"Hello, Houston? What's C# compiler error CS0224?"
I wanna be a eunuchs developer! Pass me a bread knife!
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It goes straight up to about 62 miles high and then falls back down to basically the same spot. It's not real space flight. The weightless experience only lasts for about 5 minutes. The re-entry is too easy because it does it at a much lower speed than a space shuttle or a returning satellite -- ther is no excitement here. And it costs $200K for a ticket! On the other hand, it probably puts out enough emission that is equivalent to a million cars running for a year (just a guess). (Any research on this?) California is supporting this? (See http://news.cnet.com/8301-19514_3-10410601-239.html[^]) No so good.
It will never, ever pump out as much hot air as Richard Branson!
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