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ESA Completes Important Step Toward Vega Launcher
Sven-Erik writes "ESA is reporting that 'An important step forward has just been made in the development of ESA's Vega launcher. After several months' work at the Guiana Propellant Plant at Europe's Spaceport the inert casting of the main Vega motor has been successfully carried out.' The 30-meter tall Vega launcher will be capable of placing a 1.5 ton payload into polar orbit, and it is scheduled for its first launch in 2006 from Europe's Spaceport in French Guiana, where the Ariane 1 launch facilities are being adapted for its use. It will be a perfect complement to ESA's large Ariane 5 and the medium-classed Soyuz."
Is anyone researching fuel free launches?
...or possibly using a HUGE rubber band to send a capsule flying into space.
I mean things like shooting the payload from a cannon or something...
As long as we need 100*X pounds of fuel to launch X pounds into space, space travel will remain uneconomical for most purposes.
"If anything can go wrong, it will." - Murphy
The Space Shuttle's delta wing design was based on a requirement from the military that it be capable of polar orbit. But they've never used it for that. If they'd just told the military to get lost, they could have used a better design. Sigh.
To back up my assertion that the vega is not competitive: here are a few launch prices:
The vega is supposed to cost 20 million USD for a payload of 1500kg to LEO. The Falcon I will cost 6 million USD for a payload of 700kg to a similar orbit, and the Falcon V will cost 12 million USD and have a payload of 4200kg to LEO.
So commercially vega will be a complete desaster. The only payloads that will go to vega will be government payloads that can not go to falcon for reasons of national prestige.
On the other hand, vega is a decent ICBM with MIRV capability.
Private property is the central institution of a free society (David Friedman)
i know you are kidding, but there are fuel free research. some almost exact replicas of Verne's canon. Of course, since you have to travel through dense atmosphere for a _long_time_, 7.9km/s is not nearly enough.
And the payload would go through something like 10,000G through the acceleration phase. I think they are suggesting that electronics can generally handle this, which is surprising to me.
AND the payload would burn through about five inches of ablative.
I think the current technical problem they are facing is to get the huge acceleration out of the canon - because chemical charges can not ever get you the muzzle velocity, probably ever. So now you are in the realm of railguns. don't expect to see payloads shot up this way for a few years. =)
but, like i said, there are ideas floating around about it.
My life in the land of the rising sun.
"OK, so there have been failed ESA projects (NASA/Russians have also failed more than once if I'm not mistaken), Beagle 2 being the latest (however it is often forgotten here that Mars Express was the real purpose of the mission). So yeah, they might be wasting my tax Euros. I wish they'd waste more!"
I agree with you completely - however, just to point out that I believe Beagle 2 was not funded by the ESA...of course, clearly some money from the ESA went towards Beagle 2 due to the cost of adpating Mars Express and payload launch costs, but I think the probe itself wasn't funded by ESA.
Which leaves even more money to spend on other exciting ESA projects - people may be complaining about how VEGA is "useless", but would they rather the ESA not invest money in space technology at all?
Exactly. The reason why ESA is developing its own line of launchers is because they want to ensure independent European access to space - both for heavy loads (Ariane 5) and lighter loads (Vega). Perhaps ESA will also incorporate the EADS Phoenix shuttle in its launcher family, which would give us independent manned access to space as well. I believe that this is where we might be going, and I would gladly see more money go to European space research. The Aurora programme is especially intriguing.
You forget many readers are from the US and they are becoming increasingly concerned that their technological lead in space is being eroded. I think the US really would prefer to have all other countries depend on it for satellite and space access.
Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
What truth?
There is no dupe
what technological lead
maybe the moon landing?? (if it was real)
some missions to mars
the russians are the only ones flying humans to space
ESA has about 60 % of all comercial payload
i don't think there is a leader at all
except maybe in their head
stop supporting microsoft with pirating their software!!!!!
Wouldn't it be more economical to lauch many small payloads at once using a large rocket, e.g. Ariane 5.
Contrary to another response, this is as much a logistical issue as anything else: you need to find enough small payloads going to the same orbit at the same time to make this worthwhile. Coordinating this would be a significant challenge, particularly given the paucity of small payloads in general. Arianespace routinely dual-manifests larger communication satellites (that is, launch two at a time on an Ariane 5), and this alone can cause some scheduling complications.