And here's one thing Eric Berger can do to get his groove back: stop calling the ASDS a "boat."
Quote from: Kabloona on 12/28/2016 01:01 pmAnd here's one thing Eric Berger can do to get his groove back: stop calling the ASDS a "boat."...and stop being a Moon Firster. (Hi, Eric.)
I've got four of my own:Return to flight.Fly all missions safely.Stop over-promising and under-delivering.Focus on getting customer payloads to orbit rather than settling people on Mars.
Quote from: Lee Jay on 12/28/2016 01:36 pmI've got four of my own:Return to flight.Fly all missions safely.Stop over-promising and under-delivering.Focus on getting customer payloads to orbit rather than settling people on Mars.On the last one: why? We already have ULA, Ariane, etc. However, SpaceX is the only one really doing Mars.I agree, however, that the best way to ensure settling people on Mars in the near future is for SpaceX to succeed in the near term getting Falcon 9 operating like the reliable workhorse she wants to be.
Quote from: Robotbeat on 12/28/2016 02:00 pmQuote from: Lee Jay on 12/28/2016 01:36 pmI've got four of my own:Return to flight.Fly all missions safely.Stop over-promising and under-delivering.Focus on getting customer payloads to orbit rather than settling people on Mars.On the last one: why? We already have ULA, Ariane, etc. However, SpaceX is the only one really doing Mars.I agree, however, that the best way to ensure settling people on Mars in the near future is for SpaceX to succeed in the near term getting Falcon 9 operating like the reliable workhorse she wants to be.If SpaceX loses customers to their competition, SpaceX will not have the money to pay for their Mars plans or their communication satellite network. Getting F9 and FH flying with no more failures is critical for SpaceX to survive.Once the Falcon series is launching reliably and at a good pace, everything else will fall into place.
Quote from: Lee Jay on 12/28/2016 01:36 pmI've got four of my own:Return to flight.Fly all missions safely.Stop over-promising and under-delivering.Focus on getting customer payloads to orbit rather than settling people on Mars.On the last one: why?
What WOULD help is to change from performance-optimization to reliability and repeatability. There is innovation to be had there, too.
In another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.
Stop shooting themselves in the foot...
Quote from: Robotbeat on 12/28/2016 02:20 pmIn another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.This can't be emphasized enough. It's often been mentioned that part of the reason SpaceX undercuts the competition on launch costs is because they pay relatively low wages. It's employees work very hard for those low wages, not because they're fools, but because their vision to colonize Mars is at least as strong as Musk's is, if not stronger. Musk CAN'T back off from his Mars aspirations, even if he wanted to (I doubt if he wants to), because in doing that he would lose his workforce. Every advantage SpaceX has gained so far is directly due to the fact that there are lots of people besides Musk who want to colonize Mars. They follow Musk only because he leads them towards their own goals. If he drops that vision, he might as well give up on the company.
I foresee much disappointment if this is the case.
Quote from: Lee Jay on 12/28/2016 07:12 pmI foresee much disappointment if this is the case.Longer-term that may be true but there are a lot of stepping stones on the way, such as flying people to ISS, re-using first stages, Red Dragon etc etc. Plenty to keep people involved and committed for years to come. Colonising Mars may be an ultimate goal but significantly increasing space activity through reduced costs and increased capabilities, which do seem more achievable, I'm sure would be welcomed and rewarding for Mars advocates too.
I get we're all anxious about SpaceX due to 2 major accidents in 15 months and the standdowns. But if anything it was because they were focused on getting F9 to very high performance and also trying to burn down their manifest, NOT because of Mars!
Quote from: Robotbeat on 12/28/2016 02:20 pmIn another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.This can't be emphasized enough. It's often been mentioned that part of the reason SpaceX undercuts the competition on launch costs is because they pay relatively low wages. It's employees work very hard for those low wages, not because they're fools, but because their vision to colonize Mars is at least as strong as Musk's is, if not stronger. Musk CAN'T back off from his Mars aspirations, even if he wanted to (I doubt if he wants to), because in doing that he would lose his workforce
Quote from: llanitedave on 12/28/2016 04:53 pmQuote from: Robotbeat on 12/28/2016 02:20 pmIn another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.This can't be emphasized enough. It's often been mentioned that part of the reason SpaceX undercuts the competition on launch costs is because they pay relatively low wages. It's employees work very hard for those low wages, not because they're fools, but because their vision to colonize Mars is at least as strong as Musk's is, if not stronger. Musk CAN'T back off from his Mars aspirations, even if he wanted to (I doubt if he wants to), because in doing that he would lose his workforcePerhaps they're not fools but have been fooled.
Who's the more foolish, the fool or the fool who follows him?
Quote from: Robotbeat on 12/28/2016 03:28 pmI get we're all anxious about SpaceX due to 2 major accidents in 15 months and the standdowns. But if anything it was because they were focused on getting F9 to very high performance and also trying to burn down their manifest, NOT because of Mars!That's part of what got them in trouble concentrating on maximum performance vs getting the reliability and flight rates up.
This is not a time in history when it makes any sense to describe people who are actually getting stuff done as "fools."
they need to show they can really do this really hard stuff really well if they're going to convince me they can do this really, really, really hard Mars stuff.
Quote from: llanitedave on 12/28/2016 04:53 pmQuote from: Robotbeat on 12/28/2016 02:20 pmIn another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.This can't be emphasized enough. It's often been mentioned that part of the reason SpaceX undercuts the competition on launch costs is because they pay relatively low wages. It's employees work very hard for those low wages, not because they're fools, but because their vision to colonize Mars is at least as strong as Musk's is, if not stronger. Musk CAN'T back off from his Mars aspirations, even if he wanted to (I doubt if he wants to), because in doing that he would lose his workforce. Every advantage SpaceX has gained so far is directly due to the fact that there are lots of people besides Musk who want to colonize Mars. They follow Musk only because he leads them towards their own goals. If he drops that vision, he might as well give up on the company.It honestly never occurred to me that this could be the case. If so, I feel sorry for them. Inexpensive, safe flying cars have been a similar pipe dream for over 50 years, and they are a far easier nut to crack than the colonization of Mars on chemical rocketry.I foresee much disappointment if this is the case.
Quote from: sdsds on 12/28/2016 09:15 pmThis is not a time in history when it makes any sense to describe people who are actually getting stuff done as "fools."If they were getting stuff done, it wouldn't be a problem.- Falcon 9 1.0 splashed Orbcomm-OG2 during one of its five flights, a 20% failure rate (you can count this as a half failure and do the percentage differently - like one in six - if you like).*snip*This is the stuff that has to get fixed.- Get flying again.- Fly a minimum of 25 flights in a row without a failure.- Get the pad fixed.- Get at least 40 customer launches done in the next two years, preferably without a failure.- Reuse at least a few first stages at least once to show the whole idea is at least doable.- Fly FH demo, successfully.- Fly crew safely to ISS, and back.*snip*
Actually, I don't think flying cars carries quite the inspirational power that colonizing Mars does. It's a convenience, but you'll never be able to cast it as "saving the species".
Oh please. SpaceX has been getting things done by just about any honest measure.
If SpaceX stops blowing anything up, that's a sure sign they've stopped really innovating.
To be clear - Orbcomm-OG2 wasn't "splashed" it was put in a lower-than intended orbit.
Quote from: llanitedave on 12/28/2016 10:59 pmActually, I don't think flying cars carries quite the inspirational power that colonizing Mars does. It's a convenience, but you'll never be able to cast it as "saving the species".Gosh...I'd be a million times more interested in having a personal flying machine in my garage than in living in a desolate wasteland with no people, no services, no life and no air. I suspect I'm in the 99+% on that demographic.
Quote from: whitelancer64 on 12/28/2016 11:13 pmTo be clear - Orbcomm-OG2 wasn't "splashed" it was put in a lower-than intended orbit.It burned up in the atmosphere and the remaining pieces likely landed in the ocean. I believe the point was clear.
Quote from: Lee Jay on 12/28/2016 11:16 pmQuote from: whitelancer64 on 12/28/2016 11:13 pmTo be clear - Orbcomm-OG2 wasn't "splashed" it was put in a lower-than intended orbit.It burned up in the atmosphere and the remaining pieces likely landed in the ocean. I believe the point was clear.Less than 10% of that F9's payload by mass and value and still partly successful. Point seems pretty clear.
I'm totally and completely rooting for them,
Quote from: Robotbeat on 12/28/2016 11:17 pmQuote from: Lee Jay on 12/28/2016 11:16 pmQuote from: whitelancer64 on 12/28/2016 11:13 pmTo be clear - Orbcomm-OG2 wasn't "splashed" it was put in a lower-than intended orbit.It burned up in the atmosphere and the remaining pieces likely landed in the ocean. I believe the point was clear.Less than 10% of that F9's payload by mass and value and still partly successful. Point seems pretty clear.It failed to get to orbit because one of SpaceX's engines RUD'd during first stage flight, and it was a paying customer payload that burned up in the atmosphere. They've launched other stuff for that company. If those count as successes, this one counts as a failure.
Quote from: Lee Jay on 12/28/2016 11:14 pmQuote from: llanitedave on 12/28/2016 10:59 pmActually, I don't think flying cars carries quite the inspirational power that colonizing Mars does. It's a convenience, but you'll never be able to cast it as "saving the species".Gosh...I'd be a million times more interested in having a personal flying machine in my garage than in living in a desolate wasteland with no people, no services, no life and no air. I suspect I'm in the 99+% on that demographic.That sentiment is partly why humanity in general needs to expand.I'd love me a flying car too, but it doesn't help with survivability.
Quote from: meekGee on 12/29/2016 12:06 amQuote from: Lee Jay on 12/28/2016 11:14 pmQuote from: llanitedave on 12/28/2016 10:59 pmActually, I don't think flying cars carries quite the inspirational power that colonizing Mars does. It's a convenience, but you'll never be able to cast it as "saving the species".Gosh...I'd be a million times more interested in having a personal flying machine in my garage than in living in a desolate wasteland with no people, no services, no life and no air. I suspect I'm in the 99+% on that demographic.That sentiment is partly why humanity in general needs to expand.I'd love me a flying car too, but it doesn't help with survivability.Neither does moving a few people to a place with no biosphere, who will be totally dependent on Earth.
Face it, if we screw up Earth, we're screwed. Period. That is, unless we have nuclear powered rocketry.
Quote from: meekGee on 12/29/2016 12:06 amQuote from: Lee Jay on 12/28/2016 11:14 pmQuote from: llanitedave on 12/28/2016 10:59 pmActually, I don't think flying cars carries quite the inspirational power that colonizing Mars does. It's a convenience, but you'll never be able to cast it as "saving the species".Gosh...I'd be a million times more interested in having a personal flying machine in my garage than in living in a desolate wasteland with no people, no services, no life and no air. I suspect I'm in the 99+% on that demographic.That sentiment is partly why humanity in general needs to expand.I'd love me a flying car too, but it doesn't help with survivability.Neither does moving a few people to a place with no biosphere, who will be totally dependent on Earth.Face it, if we screw up Earth, we're screwed. Period. That is, unless we have nuclear powered rocketry.
1. Fly2. Fly3. Fly4. Fly
A few people on a Mars base are indeed not helpful. Even a single million will do the trick though, and this can be done in under 100 years.
Quote from: meekGee on 12/29/2016 12:30 amA few people on a Mars base are indeed not helpful. Even a single million will do the trick though, and this can be done in under 100 years.Not under anything close to a rational economic model, and not with chemical rockets. Never going to happen. Not even close.
Quote from: vapour_nudge on 12/28/2016 08:49 pmQuote from: llanitedave on 12/28/2016 04:53 pmQuote from: Robotbeat on 12/28/2016 02:20 pmIn another thread, HMXHMX said that deep pockets and implacable will are needed to succeed. Hard to maintain implacable will to just do what Ariane and others are doing. Lose sight of Mars, and you lose the implacable resolve. Not just for Musk but for the employees as well. SpaceX isn't able to hire the best and the brightest while working them brutally hard just to launch comm sats. This fact is partly why others have failed and why Europe has not produced a SpaceX.This can't be emphasized enough. It's often been mentioned that part of the reason SpaceX undercuts the competition on launch costs is because they pay relatively low wages. It's employees work very hard for those low wages, not because they're fools, but because their vision to colonize Mars is at least as strong as Musk's is, if not stronger. Musk CAN'T back off from his Mars aspirations, even if he wanted to (I doubt if he wants to), because in doing that he would lose his workforcePerhaps they're not fools but have been fooled.Perhaps they're neither fools nor fooled, but they're taking a long view, and seeing their aspirations actually making forward progress.
Starting from this premise, it is never going to happen because you (and people/companies like you) won't try. Other pretty brilliant people are starting from the position that it is possible... they at least have a chance. Reuse is another such example.
Inexpensive, safe flying cars have been a similar pipe dream for over 50 years, and they are a far easier nut to crack than the colonization of Mars on chemical rocketry.
Quote from: AncientU on 12/29/2016 01:13 amStarting from this premise, it is never going to happen because you (and people/companies like you) won't try. Other pretty brilliant people are starting from the position that it is possible... they at least have a chance. Reuse is another such example.Reuse is a billion times easier. Heck, it's been done before for over 35 years, and it doesn't require launching tens of thousands of people - and everything they need to support them - at every opposition to a planet with no ability to support their lives.Landing tens of thousands of tons on Mars every two years economically with chemical rockets is just not going to happen.
It's a nonsense point, to be honest. You can already get a very affordable paramotor trike. Just most people don't really want to learn how to fly. We'll probably get flying cars, too, if you can afford to pay for it. Or something like them, like small VTOL electric aircraft. But that's significantly off-topic.
Quote from: Robotbeat on 12/29/2016 12:16 amIt's a nonsense point, to be honest. You can already get a very affordable paramotor trike. Just most people don't really want to learn how to fly. We'll probably get flying cars, too, if you can afford to pay for it. Or something like them, like small VTOL electric aircraft. But that's significantly off-topic.The nonsense point is the theory about saving the species
Quote from: AncientU on 12/29/2016 01:13 amStarting from this premise, it is never going to happen because you (and people/companies like you) won't try. Other pretty brilliant people are starting from the position that it is possible... they at least have a chance. Reuse is another such example.Reuse is a billion times easier. Heck, it's been done before for over 35 years (Note 1), and it doesn't require launching tens of thousands of people - and everything they need to support them - at every opposition to a planet with no ability to support their lives.Landing tens of thousands of tons on Mars every two years economically with chemical rockets is just not going to happen.
Quote from: vapour_nudge on 12/29/2016 08:47 amQuote from: Robotbeat on 12/29/2016 12:16 amIt's a nonsense point, to be honest. You can already get a very affordable paramotor trike. Just most people don't really want to learn how to fly. We'll probably get flying cars, too, if you can afford to pay for it. Or something like them, like small VTOL electric aircraft. But that's significantly off-topic.The nonsense point is the theory about saving the species Thank goodness not all of us have such narrow perspectives.
Damn, it's good to be back on this forum. I think I'll pour myself something.
Quote from: Lee Jay on 12/29/2016 12:52 amQuote from: meekGee on 12/29/2016 12:30 amA few people on a Mars base are indeed not helpful. Even a single million will do the trick though, and this can be done in under 100 years.Not under anything close to a rational economic model, and not with chemical rockets. Never going to happen. Not even close.Chemical rockets are getting cheaper. Wouldn't work for the outer solar system, but Mars seems to be doable with them. Nuclear rockets will be better suited to the asteroid belt, and the economics of THAT will probably be what makes Mars profitable. I don't think anyone envisions that technology will remain static throughout this process.
Quote from: llanitedave on 12/29/2016 02:53 pmQuote from: Lee Jay on 12/29/2016 12:52 amQuote from: meekGee on 12/29/2016 12:30 amA few people on a Mars base are indeed not helpful. Even a single million will do the trick though, and this can be done in under 100 years.Not under anything close to a rational economic model, and not with chemical rockets. Never going to happen. Not even close.Chemical rockets are getting cheaper. Wouldn't work for the outer solar system, but Mars seems to be doable with them. Nuclear rockets will be better suited to the asteroid belt, and the economics of THAT will probably be what makes Mars profitable. I don't think anyone envisions that technology will remain static throughout this process.It'll be interesting to see if fuel production on Mars will open up the asteroids.All these plans requires a lot of energy. I think nuclear on Mars will be necessary sooner rather than later.Nuclear rockets, OTOH - what are we discussing? (So I know which thread to take this to...) Thermal? Electric?
The things that SpaceX needs to do next year are the things it plans to do. No insights from this particular peanut gallery are going to improve on that.
Quote from: llanitedave on 12/29/2016 03:04 pmThe things that SpaceX needs to do next year are the things it plans to do. No insights from this particular peanut gallery are going to improve on that.Yup. Meanwhile, we'll cross fingers on the FH launch. ..
All these plans requires a lot of energy. I think nuclear on Mars will be necessary sooner rather than later.Nuclear rockets, OTOH - what are we discussing? (So I know which thread to take this to...) Thermal? Electric?
Quote from: meekGee on 12/29/2016 02:59 pmAll these plans requires a lot of energy. I think nuclear on Mars will be necessary sooner rather than later.Nuclear rockets, OTOH - what are we discussing? (So I know which thread to take this to...) Thermal? Electric?Advanced Concepts: propellantless nuclear electric.
There's a feasible rocket design that will carry ~100 people.100 such ships is 10,000 people per synod. This already puts you in the ballpark, so impossible, it ain't. You can think it won't happen, but that's a far cry from "can't"And again, why would a nuclear ship be any different?
They can avoid a failure by just not launching very much.
Quote from: Robotbeat on 12/30/2016 07:09 pmThey can avoid a failure by just not launching very much. That would be one of the worst failures.
Get the new pad working.Get the old pad fixed within the first 6 months of 2017.Launch the FH sometime in 2017. Launch from Vandenberg. Ideally an FH. IIRC SX has to do 3 successful launches to cerfity FH for NSS payloads. The sooner they start the sooner this becomes a potential revenue stream, and it looks like SX is going to need a lot of revenue.
In 2017? Or ever?
Quote from: AncientU on 12/30/2016 09:24 pmIn 2017? Or ever?Ever is a long time but as currently configured it will not launch a FH.
Ok, you've got my curiosity going. Memory says that the Vandeburg launch site was modified to do F9 or FH and at one time the first FH launch would be there.
Digitize (at least) a few hundred thousand individuals' DNA sequences. Pack them into a spacecraft that also contains all the precursor chemicals to turn the digital data into human beings, as well as enough servos and AI to control the process.
As long as they insist on innovating and upgrading the platform, they're going to find new and exciting ways to blow up, and I don't think they should shy away from that. Customers just have to be aware that they are trading risk for cost. As long as that risk can be quantified (and insured against), I don't think they'll have any issues with future orders.
The real problem will be Commercial Crew.
Quote from: Lee Jay on 12/29/2016 01:31 amQuote from: AncientU on 12/29/2016 01:13 amStarting from this premise, it is never going to happen because you (and people/companies like you) won't try. Other pretty brilliant people are starting from the position that it is possible... they at least have a chance. Reuse is another such example.Reuse is a billion times easier. Heck, it's been done before for over 35 years, and it doesn't require launching tens of thousands of people - and everything they need to support them - at every opposition to a planet with no ability to support their lives.Landing tens of thousands of tons on Mars every two years economically with chemical rockets is just not going to happen.Doing with nuclear rockets is even less likely.
This. If the RTF blew up, that would be really bad for them, but they're enough cheaper than ULA that they don't need ULA-level reliability to be commercially viable.
I don't think most commercial payloads cost enough that paying the difference (for an ULA flight) is worth it for a few percent improvement in reliability (say 93% to 99%). Wasn't the one destroyed "only" $200 million or so? If so, you'd need something like a 20% reliability difference (79% vs 99%) to make up for a (say) $40 million cost difference.The real problem will be Commercial Crew.
It's less likely because it's damn sight more difficult to do than building the ITS. Someone who knows (Henry Spencer) is of the opinion that inner planets exploration is best done with chemical, you only need nuclear for the outer planets, which is much longer term goal anyway.And note, NO ONE is developing nuclear engines, and the cost to do so would dwarf the cost of the ITS system anyway.
Quote from: JamesH65 on 12/31/2016 08:45 amIt's less likely because it's damn sight more difficult to do than building the ITS. Someone who knows (Henry Spencer) is of the opinion that inner planets exploration is best done with chemical, you only need nuclear for the outer planets, which is much longer term goal anyway.And note, NO ONE is developing nuclear engines, and the cost to do so would dwarf the cost of the ITS system anyway.The combined cost of combined Rover/NERVA programs (1955 to 1972) is about $7.6B, F1 cost $3B, SMEE $4B (and counting). Not quite "dwarfing" cost of ITS (which is more likely more than the $10B Musk is speculating on.The NR-1 (RIFT) program was a close to flight prototype; proposed designs are more sophisticated and advanced. One way to pay for the cost is in avoiding multiple SLS launches needed for chemical alternatives. NASA still spends money on testing core materials as the concept of NRP has never really gone away. see: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140002718.pdf and spirit.as.utexas.edu/~fiso/telecon10-12/Borowski_6-27-12/Borowski_6-27-12.ppt
I recognise that comsats are less exciting than Mars, uh, occupation. But there is no business case for occupation. Without profit it cannot scale.Comsats have been shown to be profitable. A LEO last-mile constellation addresses a growing trillion-dollar market, but has, so far, cost too much to deploy.If SpaceX can drop the cost of a LEO constellation enough to make last-mile internet service cost effective, that will change them and the world utterly. Apple is a nearly $200B/year company. SpaceX can be a > $500B/year company. The available profit will force them to hire hundreds of thousands of people. They will end up in very high stakes negotiations with most countries. The real estate of space will become vastly more valuable, and therefore there will be more struggle to control it, both commercially and militarily. Huge numbers of people who currently do not care at all about space stuff because it does not affect them will become interested.Therefore, the most important thing SpaceX can do in 2017 is make progress on the constellation. Launch a couple demo satellites.
I recognise that comsats are less exciting than Mars, uh, occupation. But there is no business case for occupation. Without profit it cannot scale.
Comsats have been shown to be profitable. A LEO last-mile constellation addresses a growing trillion-dollar market, but has, so far, cost too much to deploy.
Huge numbers of people who currently do not care at all about space stuff because it does not affect them will become interested.
Therefore, the most important thing SpaceX can do in 2017 is make progress on the constellation. Launch a couple demo satellites.
As always it depends. Can SX develop the system for a low enough price that they can recoup the costs on the passenger? $500k for a 100 passengers. That's $50m. Full reusability means the more flights the more profit if the operating costs are a (fairly) small fraction of total customer revenue.
Quote from: IainMcClatchie on 12/31/2016 09:11 pmI recognise that comsats are less exciting than Mars, uh, occupation. But there is no business case for occupation. Without profit it cannot scale.As always it depends. Can SX develop the system for a low enough price that they can recoup the costs on the passenger? $500k for a 100 passengers. That's $50m. Full reusability means the more flights the more profit if the operating costs are a (fairly) small fraction of total customer revenue.QuoteComsats have been shown to be profitable. A LEO last-mile constellation addresses a growing trillion-dollar market, but has, so far, cost too much to deploy.Actually Orbcomm worked but their goals were more modest. Iridium worked once the company went bankrupt and re-financed. Quote Huge numbers of people who currently do not care at all about space stuff because it does not affect them will become interested.Huge number of people depend on the GPS system but how many of them think about it's satellite based? There's a rather amusing Sky news report where one of their reporters is interviewing someone from Reaction Engines. The reporter is literally unaware that what they do depends on comm sats working. Unless the service is directly delivered to them by "SpacexBroadand (TM)" I doubt anyone will notice it. The money it generates is another matter. If the revenue produced is that great all of SX's goals become easier. QuoteTherefore, the most important thing SpaceX can do in 2017 is make progress on the constellation. Launch a couple demo satellites.Certainly on their todo list.
Quote from: john smith 19 on 12/31/2016 10:27 pmAs always it depends. Can SX develop the system for a low enough price that they can recoup the costs on the passenger? $500k for a 100 passengers. That's $50m. Full reusability means the more flights the more profit if the operating costs are a (fairly) small fraction of total customer revenue.That's less than the cost of just the fuel and oxidizer - on Earth - for those 100 passengers and the supplies and equipment they'll need to survive the trip and the stay. So, even if the rockets are free, the operations costs are free, the supplies and equipment are free, and you have 100% reusability, it'll cost more than that.
If you use RP1, maybe. Not industrial methane and oxygen in bulk.
Quote from: Robotbeat on 12/31/2016 10:45 pmIf you use RP1, maybe. Not industrial methane and oxygen in bulk.RP1 is not cheap relative to other hydrocarbons. I've no feel for bulk Methane pricing or what sort of mass we're talking about, although obviously in the 10s to 100s of tonnes.
Landing 1 loaded ITS on Mars will require roughly 50,000 tonnes of methalox. Methalox bulk cost is about $0.20 per kg, so that's $10M. Each passenger would have to contribute roughly $100k to pay for fuel if there are 100 per flight.
Musk has said they've done full size tanks and 1/4 scale Raptors already.
Quote from: john smith 19 on 01/01/2017 12:46 pm Musk has said they've done full size tanks and 1/4 scale Raptors already.1/4 scale raptors? [[citation needed]] I think you're thinking about power levels.
...What SpaceX needs, to be competitive, is a reusable all-in-one S2 dispenser combo.Consider:- BFC launches are pretty much "all the same"- BFC launches are volume limited, since they are to LEO, and F9 has a LOT of performance now.- BFC launches are to LEO, which makes reentry and recovery easier. (e.g. air capture over the ocean near the launch site)- BFC satellites are small. This means there's no need for a large fairing the encompasses the whole thing. You can integrate the fairing with the structure, and still allow the satellites to be deployed.- If you try to carry too many satellites, you become inefficient because they won't all go into the same orbital plane.- A fully reusable system is going to be cheaper, and that's the SpaceX way - optimize for cost. Make a launch system that puts enough satellites per orbital plane, and then comes back and is fully reusable - giving them a unique edge over the competition that will be launching using expendables.But I don't know if we'll see this in 2017 already... I think they certainly need to start working on it.
That's not true. Scaling size changes the physics a lot. It also would actually be smaller than Merlin 1D. That means it's need different tooling. Changing operating pressure means no change in tooling, because after all:They already need Raptor to throttle down, i.e. Operate at lower pressure.Operating at lower pressure is much easier, since the challenge of Raptor isn't the size (it's the same size as Merlin) but the extreme pressure.Operating a smaller version of Raptor but at the same pressure would still require the insane double-stage turbo pump, which is one of the most challenging parts. It'd also require the crazy alloys for the oxygen side.It makes far more sense to me that it was operated at lower pressure than a separate smaller scale design but at the crazy high pressure. Frankly, I don't understand the obsession here about sub scale Raptor. The challenge of Raptor isn't it's scale but the high pressure and the ox-rich side of the turbopump, neither of which are really easier at smaller scale. But operating at lower pressure definitely does help.
Quote from: meekGee on 01/01/2017 04:02 am...What SpaceX needs, to be competitive, is a reusable all-in-one S2 dispenser combo.Consider:- BFC launches are pretty much "all the same"- BFC launches are volume limited, since they are to LEO, and F9 has a LOT of performance now.- BFC launches are to LEO, which makes reentry and recovery easier. (e.g. air capture over the ocean near the launch site)- BFC satellites are small. This means there's no need for a large fairing the encompasses the whole thing. You can integrate the fairing with the structure, and still allow the satellites to be deployed.- If you try to carry too many satellites, you become inefficient because they won't all go into the same orbital plane.- A fully reusable system is going to be cheaper, and that's the SpaceX way - optimize for cost. Make a launch system that puts enough satellites per orbital plane, and then comes back and is fully reusable - giving them a unique edge over the competition that will be launching using expendables.But I don't know if we'll see this in 2017 already... I think they certainly need to start working on it.A fully reusable system will probably be cheaper. But bear in mind that there has been no re-use of the recovered stages yet. That comes before any serious work on recovering the second stage. They were right to defer it. There are too many other things to do.And the first thing is a no-brainer: returning the F9 successfully to flight. Everything else, including the constellation, is secondary. So I don't think you will see a reusable second stage fly in 2017. It doesn't mean they won't be working on it, though.
Quote from: envy887 on 01/01/2017 03:01 amLanding 1 loaded ITS on Mars will require roughly 50,000 tonnes of methalox. Methalox bulk cost is about $0.20 per kg, so that's $10M. Each passenger would have to contribute roughly $100k to pay for fuel if there are 100 per flight.Thanks for that. Can you split out the bulk Methane cost alone? So $400k/passenger left to cover other consumables, and all development and launch costs. I'm using a round trip time of 2 years to Mars & back so maybe 15 flights in 30 years? That's about $750m revenue per vehicle over it's lifetime, less 150m for the propellant that's $650m for everything. That suggests 2 could recover a $1Bn development cost over their lifetimes. It's pretty obvious they will be building more than one hull. I think once you send more than one vehicle at a time the risks of catastrophic failure in one of them drops a lot, like having engine out capability during launch. Likewise more hulls means less overhead per hull to allocate to the contingency of taking on passengers from other hulls. To keep it reasonable I think you need to have at least 4 hulls at a time in transit. I'm not sure how much they can do in 2017 toward this. Musk has said they've done full size tanks and 1/4 scale Raptors already. Finish the ground tests on the 1/4 Raptor and move to the full size one?Start on a full size ground dummy of the ITS?
Quote from: john smith 19 on 01/01/2017 12:46 pmQuote from: envy887 on 01/01/2017 03:01 amLanding 1 loaded ITS on Mars will require roughly 50,000 tonnes of methalox. Methalox bulk cost is about $0.20 per kg, so that's $10M. Each passenger would have to contribute roughly $100k to pay for fuel if there are 100 per flight.Thanks for that. Can you split out the bulk Methane cost alone? So $400k/passenger left to cover other consumables, and all development and launch costs. I'm using a round trip time of 2 years to Mars & back so maybe 15 flights in 30 years? That's about $750m revenue per vehicle over it's lifetime, less 150m for the propellant that's $650m for everything. That suggests 2 could recover a $1Bn development cost over their lifetimes. It's pretty obvious they will be building more than one hull. I think once you send more than one vehicle at a time the risks of catastrophic failure in one of them drops a lot, like having engine out capability during launch. Likewise more hulls means less overhead per hull to allocate to the contingency of taking on passengers from other hulls. To keep it reasonable I think you need to have at least 4 hulls at a time in transit. I'm not sure how much they can do in 2017 toward this. Musk has said they've done full size tanks and 1/4 scale Raptors already. Finish the ground tests on the 1/4 Raptor and move to the full size one?Start on a full size ground dummy of the ITS?The ITS slides show methane cost of $168/ton
The ITS slides show methane cost of $168/ton
That's the spot price at the time of the presentation, roughly. So cheap that the liquid oxygen actually costs more, I believe (partly because you need more of it).Optimistically, triple that price if you want to synthesize it from electricity. (triple the methane cost. the oxygen cost stays basically the same)
Not down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.But each passenger only needs like 100 tons of methane. So even at $500/ton, that's not so bad. (need about 400 tons of liquid oxygen, which is like $110/ton, maybe less if you make it yourself)(Side note: hydrogen can also be made biologically.)
Quote from: Robotbeat on 01/02/2017 06:37 amNot down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.But each passenger only needs like 100 tons of methane. So even at $500/ton, that's not so bad. (need about 400 tons of liquid oxygen, which is like $110/ton, maybe less if you make it yourself)(Side note: hydrogen can also be made biologically.)One question re biomethane - how pure is it? Would it need a lot of purification before being used as fuel? Cheers, Martin
There's some debate to whether that means the test engine is full size hardware at lower pressures, or smaller hardware at full pressures. Personally I think it's the latter, as it's much easier to scale hardware to 3x area (1.73x diameter) than to 3x chamber pressure.
Not down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.
Quote from: Robotbeat on 01/02/2017 06:37 amNot down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.Perhaps not but that's on Earth. On Mars energy of any kind is going to be expensive. Even assuming the hulls can come back completely empty as an RPV/autopilot system they're still going to need a lot of propellant to get them back to Earth orbit.
Quote from: john smith 19 on 01/02/2017 04:17 pmQuote from: Robotbeat on 01/02/2017 06:37 amNot down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.Perhaps not but that's on Earth. On Mars energy of any kind is going to be expensive. Even assuming the hulls can come back completely empty as an RPV/autopilot system they're still going to need a lot of propellant to get them back to Earth orbit.Solar power is getting pretty cheap. There's ~half as much sunlight on Mars, sure, but I would BET you there's more average sunlight near the equator on some parts of Mars than most of northern Germany (consider that much of northern Germany gets less than half the sunlight as parts of the American Southwest and less than a THIRD the sunlight of parts of the Andes and Australia). And more consistent over the year, too, even taking into consideration dust storms (although that's less critical for our discussion here, which is about overall propellant production capability).Solar panels (not just cells but panels) are down to around 39 cents per Watt, now. Probably will keep falling to below 25 cents per Watt, especially for thin film. And thin film solar could be made ridiculously lightweight given the right substrate. So you could ship the cells to Mars cheaply on ITS and install them on a frame built on Mars out of local material. Vast fields of solar panels on Mars, placed with some sort of semi-automated machine like we plant and harvest crops on Earth or lay railroads.And nuclear power could be relatively cheap, too (assuming we have some local manufacturing capability... not super sophisticated necessarily). Worries about exposure are less critical since the whole surface is bathed in radiation, and land is basically free (IF you can get there). So it's possible you could build and run reactors cheaper on Mars (shipping only the sophisticated parts, not massive things like containment vessels which aren't needed on Mars and/or could be made locally anyway from meteoric iron) than you could in a highly developed country on Earth due to cost of land and radiation concerns. You could possibly use thorium-burning reactors (doesn't /have/ to be a sophisticated molten salt design, but I guess it could be) and only send basically raw thorium to Mars packed carefully.So it's not obvious that by the time any of this happens that power would be immensely expensive on Mars. Initial setup WILL be expensive, but once you have some ability to build simple structures on Mars, it could be relatively reasonable.
Hmm.I think it's pretty clear that SX should avoid doing anything nuclear related in 2017. I'm hopeful that NASA's work on the KiloPower project will deliver results that can be of use to SX. 5-10Kw seems a nice granular size for use in a variety of projects, on Mars, off Mars and en route to Mars. But SX getting into nuclear technology directly seems a very bad use of time and what would be very significant resources, for all the issues around the approaches to space nuclear systems. More positively if they want to meet the 2018 deadline for a Mars landing they will have to complete work on Red Dragon and I presume get it launched.
More positively if they want to meet the 2018 deadline for a Mars landing they will have to complete work on Red Dragon and I presume get it launched.
Quote from: Robotbeat on 01/02/2017 05:47 pmQuote from: john smith 19 on 01/02/2017 04:17 pmQuote from: Robotbeat on 01/02/2017 06:37 amNot down-beat at all. Methane straight from the ground is ridiculously cheap right now in the US.And a ton of methane is about 15 MWh of energy though takes almost twice that in electricity to produce it, say 25MWh. Even with, like 2 cents per kWh, you're still looking at $500. But you also have capital cost of the electrolysis, etc.Biomethane wouldn't be cheaper than that.Perhaps not but that's on Earth. On Mars energy of any kind is going to be expensive. Even assuming the hulls can come back completely empty as an RPV/autopilot system they're still going to need a lot of propellant to get them back to Earth orbit.Solar power is getting pretty cheap. There's ~half as much sunlight on Mars, sure, but I would BET you there's more average sunlight near the equator on some parts of Mars than most of northern Germany (consider that much of northern Germany gets less than half the sunlight as parts of the American Southwest and less than a THIRD the sunlight of parts of the Andes and Australia). And more consistent over the year, too, even taking into consideration dust storms (although that's less critical for our discussion here, which is about overall propellant production capability).Solar panels (not just cells but panels) are down to around 39 cents per Watt, now. Probably will keep falling to below 25 cents per Watt, especially for thin film. And thin film solar could be made ridiculously lightweight given the right substrate. So you could ship the cells to Mars cheaply on ITS and install them on a frame built on Mars out of local material. Vast fields of solar panels on Mars, placed with some sort of semi-automated machine like we plant and harvest crops on Earth or lay railroads.And nuclear power could be relatively cheap, too (assuming we have some local manufacturing capability... not super sophisticated necessarily). Worries about exposure are less critical since the whole surface is bathed in radiation, and land is basically free (IF you can get there). So it's possible you could build and run reactors cheaper on Mars (shipping only the sophisticated parts, not massive things like containment vessels which aren't needed on Mars and/or could be made locally anyway from meteoric iron) than you could in a highly developed country on Earth due to cost of land and radiation concerns. You could possibly use thorium-burning reactors (doesn't /have/ to be a sophisticated molten salt design, but I guess it could be) and only send basically raw thorium to Mars packed carefully.So it's not obvious that by the time any of this happens that power would be immensely expensive on Mars. Initial setup WILL be expensive, but once you have some ability to build simple structures on Mars, it could be relatively reasonable.All true, all good, one comment - Mars inclination is higher, so while consistent, solar power generation during winter is consistently low. But that's just a known consistent factor you just have to bring into account.For nuclear, I betcha legal costs on earth are higher than interplanetary transport costs...And hey, there's always Hydrino power.
I don't think they're likely to land a Dragon on Mars in 2018 if they don't launch FH a few times in 2017 and their chance of success will be higher if they can flight-test anything novel that will be on board the first RD, but there would be no reason to launch RD to Mars in 2017.Dinking around with the Ames trajectory browser, it looks like the next departure window is centered on May 2018, with minimal delta-V trajectories getting them there in December.
At best a 50:50 chance of making the 2018 date for Red Dragon. And then still just a 50% chance of success if it does launch in 2018.
Quote from: launchwatcher on 01/03/2017 12:24 amthe next departure window is centered on May 2018, with minimal delta-V trajectories getting them there in December.I had 2018 in my head as the landing date.
the next departure window is centered on May 2018, with minimal delta-V trajectories getting them there in December.
1) Launch the Iridium group without mishap on Jan 9th, or at least launch it in January2)Keep launching a payload a month from that pad for the rest of the year without mishap3)Launch an FH. 4)Finish work on the RD and get it flight ready for an FH launch.
(...)1. Agreed and the AMOS launch by end of January(...)
Quote from: john smith 19 on 01/06/2017 01:32 pm1) Launch the Iridium group without mishap on Jan 9th, or at least launch it in January2)Keep launching a payload a month from that pad for the rest of the year without mishap3)Launch an FH. 4)Finish work on the RD and get it flight ready for an FH launch.1. Agreed and the AMOS launch by end of January
2. The pace needs to be an average of one per every 3 weeks, if they want to hit 18 commercial / NASA launches.
3. Two launches of FH this year.
4. Doable if RD is in fact a re-used Dragon 2, i.e., the one from the pad abort, or an existing un-flown one; it doesn't have to be one for either the commercial cargo or crew contracts.
This thread:Four things SpaceX can do 2017:1) Do everything smart and good that they should do.2) Don't do things which are dumb that they shouldn't do.3) Be lucky.4) Don't be unlucky.
Eric Berger offered up "Four things SpaceX can do in 2017 to Get It's Groove Back"1. RTF in January2. First re-flown core in 1st quarter3. Falcon Heavy by mid-year4. Dragon 2 by year endI think 1,2 not a problem, FH maybe, 4 probably nothttp://arstechnica.com/science/2016/12/four-things-spacex-can-do-in-2017-to-get-its-groove-back/
Quote from: DOCinCT on 12/28/2016 12:43 pmEric Berger offered up "Four things SpaceX can do in 2017 to Get It's Groove Back"1. RTF in January2. First re-flown core in 1st quarter3. Falcon Heavy by mid-year4. Dragon 2 by year endI think 1,2 not a problem, FH maybe, 4 probably nothttp://arstechnica.com/science/2016/12/four-things-spacex-can-do-in-2017-to-get-its-groove-back/#1 and #2 on your list completed successfully. Spacex is off to a good start.
The next item, FH, has also become more ambitious than it was. Confirmed as using 2 flight tested cores, going for return of all 3, plus attempted recovery of the faring, and even taking a shot at recovering the second stage.
Quote from: Ludus on 04/03/2017 05:55 amThe next item, FH, has also become more ambitious than it was. Confirmed as using 2 flight tested cores, going for return of all 3, plus attempted recovery of the faring, and even taking a shot at recovering the second stage.That is all well and good, but my heart rate is going to(peg-out/flatline, choose one) from the moment of going vertical on the pad until max Q.