Of course it could, because you could launch it dry and push it through TLI dry.
Quote from: RocketmanUS on 12/12/2012 12:10 amIt could use the methane RL-10 ( CECE ) engines with a high ISP. Same system could be used to fill a lander in LLO without the Dragon.Yes, in theory, and eventually. But for now we don't have CECE, and storage and transfer will be more difficult than with hypergolics. Switching to LOX/methane isn't a big gain, and losing propellant transfer and storage is a big loss.
It could use the methane RL-10 ( CECE ) engines with a high ISP. Same system could be used to fill a lander in LLO without the Dragon.
Historically, use of the solid is not new or innovative.
I have a lot of hope for Golden Spike, but I'm kind of worried that their lack of an entrepreneurial bootstrapping plan is going to bite them. It feels a little bit like if SpaceX had announced in 2002 that their first product would be the Falcon Heavy (without first going through Falcon 1/9), or if Planetary Resources had announced they'd go directly for asteroid mining (without first selling smallsat services).
Quote from: neilh on 12/12/2012 08:01 pmI have a lot of hope for Golden Spike, but I'm kind of worried that their lack of an entrepreneurial bootstrapping plan is going to bite them. It feels a little bit like if SpaceX had announced in 2002 that their first product would be the Falcon Heavy (without first going through Falcon 1/9), or if Planetary Resources had announced they'd go directly for asteroid mining (without first selling smallsat services). Or if Stratolaunch had announced that their first product would be . . . oh wait.Sorry.
Re: sample return market.http://blogs.scientificamerican.com/guest-blog/2012/12/11/rock-tasting-at-biosphere-2/Rock Tasting at Biosphere 2, Scientific American, December 11, 2012"Some of the rocks that Zaharescu uses ... are sent to him by mountaineers and explorers affiliated with Adventurers and Scientists for Conservation (ASC). This organization pairs adventure athletes with scientists who need help collecting samples or data from extreme environments. Mountaineers associated with ASC collect bedrock for Zaharescu from the tops of mountain ranges. ... He feels a close bond with these citizen scientists, who risk life and limb to collect samples for him. “Anything can happen to them. They can die.” "
Quote from: Hernalt on 12/12/2012 09:41 pmRe: sample return market.http://blogs.scientificamerican.com/guest-blog/2012/12/11/rock-tasting-at-biosphere-2/Rock Tasting at Biosphere 2, Scientific American, December 11, 2012"Some of the rocks that Zaharescu uses ... are sent to him by mountaineers and explorers affiliated with Adventurers and Scientists for Conservation (ASC). This organization pairs adventure athletes with scientists who need help collecting samples or data from extreme environments. Mountaineers associated with ASC collect bedrock for Zaharescu from the tops of mountain ranges. ... He feels a close bond with these citizen scientists, who risk life and limb to collect samples for him. “Anything can happen to them. They can die.” "OK that make sense. SpaceX could supply the pilot for Dragon and GSC could supply the pilot for the lander. Both would go to the Lunar surface and collect samples for the customer. With live video and audio with the customers experts they could collect the samples that the customer wants from that site. They could use a small remote control ( toy size ) rover with a camera on it to search out more of the site. If it has solar panels on it, then it can be used after they leave. So for $1.5B they can return 50kg of samples. 50kg x 2.2046 ( convert to pounds ) = 110.23lb110.23lb x 16( to get oz ) = 1763.68oz $1.5B / 1763.68oz = $850,494.42 ( rounded down to nearest cent )More could afford this kind of option.
Quote from: RocketmanUS on 12/13/2012 02:02 amQuote from: Hernalt on 12/12/2012 09:41 pmRe: sample return market.http://blogs.scientificamerican.com/guest-blog/2012/12/11/rock-tasting-at-biosphere-2/Rock Tasting at Biosphere 2, Scientific American, December 11, 2012"Some of the rocks that Zaharescu uses ... are sent to him by mountaineers and explorers affiliated with Adventurers and Scientists for Conservation (ASC). This organization pairs adventure athletes with scientists who need help collecting samples or data from extreme environments. Mountaineers associated with ASC collect bedrock for Zaharescu from the tops of mountain ranges. ... He feels a close bond with these citizen scientists, who risk life and limb to collect samples for him. “Anything can happen to them. They can die.” "OK that make sense. SpaceX could supply the pilot for Dragon and GSC could supply the pilot for the lander. Both would go to the Lunar surface and collect samples for the customer. With live video and audio with the customers experts they could collect the samples that the customer wants from that site. They could use a small remote control ( toy size ) rover with a camera on it to search out more of the site. If it has solar panels on it, then it can be used after they leave. So for $1.5B they can return 50kg of samples. 50kg x 2.2046 ( convert to pounds ) = 110.23lb110.23lb x 16( to get oz ) = 1763.68oz $1.5B / 1763.68oz = $850,494.42 ( rounded down to nearest cent )More could afford this kind of option.Now you're feelin it. And it's quite obvious that the customer needs to be in a robust, heavily shielded habitat at EML2 so that the latency for the sample selection is as low as possible.
Now you're feelin it.
Quote from: Hernalt on 12/13/2012 02:10 amNow you're feelin it.Me too. I love customers who snap to attention and agree when I tell then what the want, what they need, and write billion-dollar checks on demand.Seriously, changing GSC's model from putting persons-of-your-choice-on-the-lunar surface to lunar-sample-return-for-hire probably warrants a different thread.
Or if Stratolaunch had announced that their first product would be . . . oh wait.
It's not changing anything. It's about the need for trained personnel to operate the Dragon and lander. If one person can fly both vehicles then the other person can be the customers choice ( their own person or a person for hire ).
SpaceX could supply the pilot for Dragon and GSC could supply the pilot for the lander. Both would go to the Lunar surface and collect samples for the customer. With live video and audio with the customers experts they could collect the samples that the customer wants from that site.
Customer would be on Earth, not EML1/2. The communications between the two is only a few seconds.
Quote from: RocketmanUS on 12/13/2012 02:45 amIt's not changing anything. It's about the need for trained personnel to operate the Dragon and lander. If one person can fly both vehicles then the other person can be the customers choice ( their own person or a person for hire ).That's not what you said...Quote from: RocketmanUS on 12/13/2012 02:02 amSpaceX could supply the pilot for Dragon and GSC could supply the pilot for the lander. Both would go to the Lunar surface and collect samples for the customer. With live video and audio with the customers experts they could collect the samples that the customer wants from that site.If the lander holds two people, and one of them is SpaceX-provided and one is GSC-provided, and they're collecting samples for the "customer", where are the customer personnel?Quote from: RocketmanUS on 12/13/2012 02:28 amCustomer would be on Earth, not EML1/2. The communications between the two is only a few seconds.Right... the customer is on Earth, not on the Lunar surface. Presumably because the two available seats are occupied by "trained personnel" from SpaceX and GSC? Or what?Again, how does that not fundamentally change GSC's approach, assumptions and business model beyond recognition?
Not all customer will have or want to have their own trained personnel to send to the moon. It would not change the cost for GSC as they would still have to train the customers personnel.
Quote from: RocketmanUS on 12/13/2012 03:31 amNot all customer will have or want to have their own trained personnel to send to the moon. It would not change the cost for GSC as they would still have to train the customers personnel.Sez who? GSC's business model is based on customers wanting, and willing to pay for, putting their own personnel on the moon (mostly those "sovereign states"). While not putting customer personnel on the moon may not change GSC's costs (much), it will definitely reduce revenue.Unless you're suggesting that customers would be willing to pay the same for a sample-return-for-hire mission as a customer-person-on-the-moon mission? Or that GSC could make up the reduced revenue by increased volume of sample-return-for-hire missions? Sure, sample return and sales may be part of the business model, but if that's all they manage, they'll never survive.Again, you're attempting to turn GSC's model into something completely different, with nothing but specious assumptions and assertions.
Please read GSC web page on the business objectives.http://goldenspikecompany.com/our-business/business-objectives/
The enterprise proposed here opens up the possibility for private individuals, private companies, space and science agencies abroad, or even US agencies to purchase transportation services to and from the lunar surface. Possible motivations might include individual ambition or curiosity, tourism, scientific investigation, or profit. Governments of other nations desiring to participate in space exploration but unable to afford a standalone lunar exploration program could, for example, purchase rides for scientists or other citizens for scientific and technical advancement or simply for national pride.