Quote from: Danderman on 12/10/2012 05:49 pmQuote from: Bill White on 12/10/2012 04:40 amQuote from: Robotbeat on 12/10/2012 04:31 amI agree... This whole plan depends on an effective lander, all other parts are nearly available. Make a great lander (ideally with a way to efficiently refuel it), and this plan is workable.Actually, Rocketman is spot on. Identifying what paying customers want is the critical link. Yep.The rest of the technobabble here is not related to the future of Golden Spike.No bucks, no Buck Rogers.Actually, I would say identifying a price point that customers can afford to pay is more important. There is no point in promising the entire Moon if people can't afford to pay for it. $1.5B per bare bones mission is pushing the limit of affordability as it is.
Quote from: Bill White on 12/10/2012 04:40 amQuote from: Robotbeat on 12/10/2012 04:31 amI agree... This whole plan depends on an effective lander, all other parts are nearly available. Make a great lander (ideally with a way to efficiently refuel it), and this plan is workable.Actually, Rocketman is spot on. Identifying what paying customers want is the critical link. Yep.The rest of the technobabble here is not related to the future of Golden Spike.No bucks, no Buck Rogers.
Quote from: Robotbeat on 12/10/2012 04:31 amI agree... This whole plan depends on an effective lander, all other parts are nearly available. Make a great lander (ideally with a way to efficiently refuel it), and this plan is workable.Actually, Rocketman is spot on. Identifying what paying customers want is the critical link.
I agree... This whole plan depends on an effective lander, all other parts are nearly available. Make a great lander (ideally with a way to efficiently refuel it), and this plan is workable.
What would be interesting is information about who at Golden Spike is handling marketing.
Mr. Zak Williams – director of marketing, Moon Express
The geinus of Stern is that he is not going to be lulled into the same mistakes that NASA has been making over the past 5 decades. He is not about to allow his project to die a slow lingering death from requirements creep, and he is not going to try to get funded on the basis of unreasonable low-ball cost estimates.
What I'm actually interested in is a fully reusable crew. Disposable landers? No problem. Disposable crew? Big problem.
There's no need to make the architecture dependent on FH ...
There are guys with nothing but a GED and CDL that [transfer LH2] every day.
The proposed missions have been criticized as being "bare bones" "flag and footprint" missions. I thought it would be interesting to do a direct comparison with the Apollo missions:Mission / time on lunar surface (# of EVAs) lunar surface EVA time / mass of lunar samples returned / lunar science package deployed / extra vehicleApollo 11 / 21:36 (1 EVA) 2:35 / 21.5kg / EASEPApollo 12 / 31:31 (2 EVA) 7:45 / 34.3kg / ALSEPApollo 14 / 33:30 (2 EVA) 9:22 / 42.3kg / ALSEPApollo 15 / 66:55 (3 EVA) 18:34 / 77.3kg / ALSEP / Lunar RoverApollo 16 / 71:02 (3 EVA) 20.14 / 95.7kg / ALSEP / Lunar RoverApollo 17 / 74:59 (3 EVA) 22:04 / 110.5kg / ALSEP / Lunar RoverEarly GS / >36:00 (2 EVA) ??:?? / ~50kg / GoLDSEPLooking at this, and considering that GoLDSEP will surely be more advanced than ALSEP was, I would put the early Golden Spike lunar surface missions as more capable than Apollo 11 to 14, but less capable than Apollo 15 to 17.
Except for the following facts: (a) FH minimizes the total number of launches required; and (b) FH has the cheapest per kilogram launch prices in town...
GED = General Education Diploma--equivalent to a high school diploma for high school dropouts in the USACDL = Commercial Driver's LicenseI'm talking about truck drivers IOW. Of course, they also need a HazMat certification....
What do those TLAs mean?
Quote from: Warren Platts on 12/10/2012 08:18 pmExcept for the following facts: (a) FH minimizes the total number of launches required; and (b) FH has the cheapest per kilogram launch prices in town...Those are not facts since FH and its low prices are not a given. There's no good reason to make the architecture dependent on any specific launch vehicle and there are good reasons to make it launch-vehicle agnostic. All you need to do is to make sure that you can take advantage of any launch vehicle that's available. And that's something you can do if you use propellant transfer.
That's still not a good reason to make yourself dependent on a single launch vehicle, especially since there is absolutely no need to do so and very good reasons not to.
Are you saying you would prefer to lock in a specific launch vehicle? I'm not talking about locking it in right now, but about doing it at all. Why would you want to be dependent on a single supplier if you could help it?
If you want to go with your Hypergolic Evolved Lunar Lander, then you must go with FH.Unless of course you would prefer waiting for SLS....
It will double costs associated with LV. Integration, adapters, specific LV EDS, CCV upgrades for BEO so we are talking a total increse in costs as much as $2B.