NASA's Commercial Crew Development program, or "CCDev", has been a resounding success - and that's why they're not doing it anymore.
Inspired by the earlier Commercial Orbital Transportation Services program, or "COTS", and funded by the American Recovery and Reinvestment Act of 2009 stimulus to the tune of $50M, CCDev came out swinging in 2010 with five US companies producing impressive results on what was essentially bonus pay to NASA. As such, it was no surprise when a further $270M was provided for the second round, or "CCDev2". This round is now coming to a close, with continuing achievement from US companies with minimal oversight from NASA. Also, a number of "unfunded" CCDev agreements have been made which receive only use of NASA facilities and expertise - they too have been successful.
With all this success, it might seem strange that NASA is dropping the CCDev program - but they are. They intend to move on to a "procurement" process where a number of companies will be required to submit designs, to be reviewed by NASA, with an eventually "down select" to one or possibly two approved providers for the next phase. The Commercial Crew Program, or "CCP", requested funding for the next five years is $850M/year or $4250M total, but at this time it appears unlikely that they will get more than $500M in the first year.
No, that's not a misprint. Here's a graph to hammer home the point.
Why the massive jump? The simple answer is given by acting program director Phil McAlister's comments at the 2011 International Symposium for Personal and Commercial Spaceflight - the commercial crew office has grown to 250 people, many of which are spending their days writing requirements and regulations and have been for "the last two years". In the near future, a number of these staff will be "embedded" into the companies doing their initial design work. This massive increase in oversight comes with a switch from Space Act Agreements - where NASA pays the partner only after agreed upon milestones have been met - to Federal Acquisition Regulation contracts. Although it is increasingly obvious that "partners" are becoming contractors, and NASA is taking control over the industry, McAlister continues to downplay the change, stating that it is "just rhetoric from people who don't want to engage in debate".
Well here's some debate. Fundamentally, the COTS and CCDev rounds were about partnership. NASA was not in control and this was a good thing - for the industry, for NASA and for the taxpayer. Yes, Space Act Agreements have been proven to work, but it's not just about that - it's about who has control in this relationship. Under the COTS/CCDev program, a partner could say no. They could say they weren't interested in pursuing a proposed milestone and NASA had to negotiate. The pay-on-performance standard encouraged partners to only take on milestones they knew they could achieve and, with good faith, NASA had clearly defined. Those milestones represented where the goals of the partner matched the goals of NASA - which many don't seem to understand are necessarily different.
During a congressional testimony today, where Elon Musk was a witness for the first time (see this summary in PopMech), Congressman George Miller (D) asked two questions which insisted that eventually NASA will have just the one provider for commercial crew. Later, Congresswoman Donna Edwards (D) expressed concern that NASA is creating a US monopoly on commercial crew. Setting aside that these people are supposed to be telling NASA what to do, not meekly asking for a forecast of the future, the NASA representative - William Gerstenmaier - essentially agreed with the assessment, stating a lack of funding to support two providers.
Oh, did I not mention that? Yes, NASA thinks nearly five billion dollars isn't sufficient to get commercial crew providers to a point where they can start actually paying them for seats. How much exactly they're going to pay them for seats is anyone's guess. SpaceX will happily tell you that they can do $20M/seat, but that assumes 28 seats per year. Which could mean anything because NASA can't actually tell you how many seats they want. NASA at least wants the price of seats on US commercial crew providers to be below the price of seats on Soyuz, but they seem to have no clue anymore why that is. As such, this has encouraged a number of hilarious Congress-does-math moments where the representative will add together the cost of development, price per seat by estimated number of seats, get a number which is bigger than just continuing to buy seats from the Russians and wonder how this is going to save NASA money. Hint: it's not. That's not the goal. The goal is to kickstart the industry by having NASA as an anchor tenant. The only reason to care about the Soyuz price at all is to ensure the US commercial crew providers are competitive in the international market. This should be obvious but NASA/Congress are stocked with morons.
Here's a prediction.. you heard it here first.. that whole lower-than-Soyuz-price thing will go away real soon. I think this will not be the last way NASA breaks the former-partners making them uncompetitive. Ultimately, the product that NASA wants - the mythical space transportation system that will keep the precious astronauts safe on their purposeless jaunts to "occupy" the ISS, maintaining international relations and supervising ants sorting tiny screws in space - is incompatible with actual productive use of human spaceflight. When the commercial markets fail to materialize, the government can say "we told you so!" and essentially nationalize the industry, as they did with launch vehicles.
Briefly, how was it ever supposed to work? The vision, for those who can remember it, was for NASA to simply buy tickets on commercial crew transportation providers. It was supposed that a promise to buy some number of seats per year would have been enough to encourage private development of the vehicles. This of course was naive, as a promise from NASA is about as bankable as a promise from Congress - that is, worthless. So instead, some money was thrown over the wall with a minimum amount of whatcha-gunna-use-it-for? The hope being that private investment would come to the table. This worked! So the sensible next step is to keep doing the thing that works.
Part II: The Market
What would happen if NASA continued to encourage the industry to develop, instead of embarking on a premature "procurement" process for their own piddling little needs? The answer is glorious: multiple commercial crew transportation providers racing to be the first available to offer seats. Actual price competition and ongoing innovation. This would open new markets and the virtuous cycle would open up the entire frontier.
But... so many people can't remember this vision - if they ever knew it at all. We regularly hear the proud proclamation that the government is the only "market" for human spaceflight. Ok, maybe they're willing to grant that there's a market for a few "overly rich tourists", yes, they really use that word, and maybe there's some other countries that would like to have a space program but don't have the wherewithal to slap together their own big-rocket-and-capsule program, but that's just icing on the cake. Even the commercial crew transportation providers seem to be ignorant of the actual market which is out there waiting to be tapped. Even Elon Musk seems to be ignorant of the real market.. there, I said it. Talk of colonizing Mars someday is great, but that's not where the money is right now.
I can hear the space solar power people screaming from the balcony. They know the answer! And while I appreciate their enthusiasm, I think they're wrong. Someday, space solar power will be operational and human spaceflight to maintain those massive solar arrays will be necessary, but that day is not here. We should keep them firmly in mind and think about their needs when making decisions about on-orbit capabilities, but right now they're still on the ground.
No, the market I'm talking about is the one space market that has consistently made profits since the beginning of the space age. In 2005 PanAmSat launched the Galaxy 15 telecommunications satellite, its ownership was later transferred to Intelsat. In April of 2010 control was lost and the satellite starting drifting, causing significant hazard to other satellites. More importantly, the satellite was out of commission and losing money every day. An estimate of the loss of the satellite, was required for accounting purposes and a figure of around $4194M was given, or ~$400M per year for the expected remaining lifespan.
This gives us some idea of the acceptable price for a satellite "rescue" mission out to geostationary Earth orbit. It's hard to imagine NASA screwing up commercial crew so much that such a mission could be made unaffordable by US suppliers, but if seats are available on the Russian Soyuz - as they will be when NASA finally switches to commercial crew - the inability of US human spaceflight providers to beat the Soyuz price will suddenly become important.
Much more interesting, I think, is to consider the current SpaceX pricetag of a Falcon 9 / crew Dragon flight, upgraded to the Falcon Heavy, and before any of the price reductions promised by reusability.. let's say, $200M. At this price it is not inconceivable to imagine sending a crew out annually to service a number of satellites in a constellation. When we consider that routine maintenance has never been done on communication satellites, it becomes obvious that extended lifetimes can be achieved that would more than offset the cost.
In short, NASA isn't the market for human spaceflight, it isn't even the icing, it's the free frogurt - don't eat it.
Showing posts with label commercial space. Show all posts
Showing posts with label commercial space. Show all posts
Wednesday, October 26, 2011
Monday, August 29, 2011
EML1 Buildup
Today's space launch market is used to place satellites - commercial, scientific and military - into orbit, with the majority going to the geostationary orbit. In all such cases, the launch vehicle does not perform the final maneuver to circularize the orbit. The satellite is dropped off and circularizes its own orbit using on-board propellant. This is a significant delta-v change of about 1.6 km/s, and the remaining fuel is used to maintain the orbit, usually for 25 years or more.
Launch to Geostationary Transfer Orbit, circularize using on-board propellant. This is the standard model for how satellites are deployed into space. It is a mature process which has served us well for decades. However, when planning an exploration architecture, it has always been treated as irrelevant.
Here is a list of some current (and one near future) launch vehicles, their listed throw mass to GTO and the calculated mass that can be placed into the first Earth-Moon Lagrange point using a 312 second specific impulse storable propellant thruster (GTO to EML1 delta-v is 1.27 km/s).
What should be obvious is that there is quite a healthy international stable of launch vehicle providers, and they're all geared up for sending payloads to GTO. What is perhaps not obvious is that by going from GTO to EML1 I am seriously cheating myself. I don't mind because throwing to a lunar transfer orbit is something all of these vehicles can also do and, in all cases, the subsequent transfer to EML1 will be less than a transfer from GTO. As such, we can accept the numbers above as accurate, even if they are overly conservative.
So what does this mean? Suppose we want to land a payload on the surface of the Moon. One option is to simply pick the biggest one of these rockets and fly it directly to lunar orbit and start our descent. The total delta-v for such a mission is likely to be about 3.2 km/s, which means we can land a maximum of 6676 kg.
Suppose, instead, we fly to EML1 and pick up fuel. The table above indicates we can put a maximum of 12546 kg to EML1, and the delta-v from EML1 to the lunar surface is 2.52 km/s, so we need 16043 kg of fuel to make the trip. Because we're using storable propellants, this can be delivered over a long time using whichever provider offers the best price, or over a short time by engaging as many providers as become available.
Although this is just a rough analysis, it shows that we can land twice as big payloads by building up EML1 with propellant, without the need for any new launch vehicles, new technologies or even new ways of doing business, and we could start doing it right now.
Launch to Geostationary Transfer Orbit, circularize using on-board propellant. This is the standard model for how satellites are deployed into space. It is a mature process which has served us well for decades. However, when planning an exploration architecture, it has always been treated as irrelevant.
Here is a list of some current (and one near future) launch vehicles, their listed throw mass to GTO and the calculated mass that can be placed into the first Earth-Moon Lagrange point using a 312 second specific impulse storable propellant thruster (GTO to EML1 delta-v is 1.27 km/s).
| Launch vehicle | Mass to GTO | Mass to EML1 |
|---|---|---|
| Falcon 9 | 4680 kg | 3090 kg |
| H-IIB 304 | 8000 kg | 5282 kg |
| Long March 3B/E | 5500 kg | 3632 kg |
| Proton | 6360 kg | 4199 kg |
| Atlas V 551 | 8700 kg | 5745 kg |
| Ariane 5ECA | 10050 kg | 6636 kg |
| Delta IV-H | 12980 kg | 8571 kg |
| Falcon Heavy | 19000 kg | 12546 kg |
What should be obvious is that there is quite a healthy international stable of launch vehicle providers, and they're all geared up for sending payloads to GTO. What is perhaps not obvious is that by going from GTO to EML1 I am seriously cheating myself. I don't mind because throwing to a lunar transfer orbit is something all of these vehicles can also do and, in all cases, the subsequent transfer to EML1 will be less than a transfer from GTO. As such, we can accept the numbers above as accurate, even if they are overly conservative.
So what does this mean? Suppose we want to land a payload on the surface of the Moon. One option is to simply pick the biggest one of these rockets and fly it directly to lunar orbit and start our descent. The total delta-v for such a mission is likely to be about 3.2 km/s, which means we can land a maximum of 6676 kg.
Suppose, instead, we fly to EML1 and pick up fuel. The table above indicates we can put a maximum of 12546 kg to EML1, and the delta-v from EML1 to the lunar surface is 2.52 km/s, so we need 16043 kg of fuel to make the trip. Because we're using storable propellants, this can be delivered over a long time using whichever provider offers the best price, or over a short time by engaging as many providers as become available.
Although this is just a rough analysis, it shows that we can land twice as big payloads by building up EML1 with propellant, without the need for any new launch vehicles, new technologies or even new ways of doing business, and we could start doing it right now.
Wednesday, February 16, 2011
How COTS-D Was Killed
Lest we forget, under Mike Griffin NASA awarded to SpaceX an option in their Commercial Orbital Transportation Services contract to develop a crew transport capability. The Space Act Agreement looked like this:
As with all the COTS milestones, SpaceX would not have received these payments until the milestone was completed. The finance milestones were required to demonstrate that SpaceX could fund and complete all the milestones without using the payments from NASA as "seed money".
The COTS-D option was never activated. You may even hear some people at NASA say that it was never "funded", this is wrong. The final nail in the coffin of COTS-D came in the form of an intriguing exchange between Sen. Bill Nelson and then acting NASA Administrator Chris Scolese. Here's the relevant part of the long transcript.
And that was the last opportunity for COTS-D. Had NASA obeyed the law and provided the $150M that was allocated in the FY09 budget, SpaceX could have started COTS-D and completed the first seven milestones. When the $150M in stimulus money came in SpaceX would have been on much better footing to claim part of it. Instead, Sen Shelby was able to divert $100M to the development of Ares I, a vehicle that was later scheduled to be cancelled prompting him to insert language into law prohibiting NASA from doing that. Of the remaining $50M, SpaceX received none.
The official position of NASA seems to be that the CCDev program has replaced COTS-D. SpaceX has put in a bid for the new round, which NASA has been prohibited from starting due to the failure of Congress to pass a budget for FY11. Should SpaceX be successful, they intend to start work on the launch abort system which will also allow the Dragon spacecraft to land vertically on land. While I have been assured that the CCDev program will be "milestone based" like COTS, I still have my doubts that it will capture the simplicity of the COTS-D option.
| Milestone | Payment |
|---|---|
| Project Management Plan Review and Crew Demo 1 System Requirements Review | $27,420,000 |
| Financing D1 | $10,000,000 |
| Crew Demo 1 System Preliminary Design Review | $22,420,000 |
| Crew Demo 2 System Requirements Review | $25,420,000 |
| Crew Demo 1 Critical Design Review | $20,420,000 |
| Crew Demo 2 System Preliminary Design Review | $20,420,000 |
| Crew Demo 1 Demonstration Readiness Review | $20,420,000 |
| Crew Demo 3 System Requirements Review | $25,420,000 |
| Financing 2D | $10,000,000 |
| Crew Demo 2 Critical Design Review | $18,420,000 |
| Crew Demo 3 System Preliminary Design Review | $20,420,000 |
| Crew Demo 1 Mission | $15,420,000 |
| Crew Demo 2 Demonstration Readiness Review | $18,420,000 |
| Crew Demo 3 Critical Design Review | $18,420,000 |
| Crew Demo 2 Mission | $8,420,000 |
| Crew Demo 3 Demonstration Readiness Review | $18,420,000 |
| Crew Demo 3 Mission | $8,420,000 |
| Total | $308,300,000 |
As with all the COTS milestones, SpaceX would not have received these payments until the milestone was completed. The finance milestones were required to demonstrate that SpaceX could fund and complete all the milestones without using the payments from NASA as "seed money".
The COTS-D option was never activated. You may even hear some people at NASA say that it was never "funded", this is wrong. The final nail in the coffin of COTS-D came in the form of an intriguing exchange between Sen. Bill Nelson and then acting NASA Administrator Chris Scolese. Here's the relevant part of the long transcript.
Senator Nelson. In last year's authorization bill, there was guidance to NASA about COTS-D Space Act agreements to develop a U.S. commercial alternative to Soyuz. We authorized $150 million in funding for COTS-D. I noticed that you are
putting $150 million of stimulus funds toward the Commercial Crew and Cargo program, but not actually initiating COTS-D agreements. Why are you not initiating these Space Act agreements?
Mr. Scolese. Well, we are working the commercial program as you defined. There was cargo on it. We have those two contracts with SpaceX and Orbital to do cargo. We had one for COTS-D. I cannot recall a specific--$150 million to go on to COTS-D. We did this year in the stimulus identify $150 million to stimulate a commercial activity, and it is broken into two pieces: $70 million to go off and develop capabilities that any visiting vehicle would need, including commercial vehicles, and that includes developing the human space flight rating requirements, the requirements that you need to be certified for human space flight. As you well know, we build human spacecraft and design them so infrequently that we have to write those requirements down. So part of this is to make those available to everybody, make them understandable to everybody, and that will help not only the commercial providers broadly, but all of us. And then $80 million to stimulate activity for a commercial crew.
[recess for a vote]
Senator Nelson. I want to go back to the question that I had asked you earlier. You described the breakdown of how you intend to program $150 million for Commercial Crew and Cargo. Instead of putting the dollars into the various component pieces that would enable crew capability, would it not make more sense just to invest that in a milestone-based demonstration flight?
Mr. Scolese. We discussed that, and we believe that we need to take a measured approach to developing commercial crew. As you know, again it is a very difficult prospect to develop a crewed vehicle to carry crews safely to and from space, let alone rendezvous and dock with the Space Station. So we are working a measured development where we work progressively from developing the capability to get into space, to conduct the rendezvous and docking with the Space Station, to crew rescue, which can be done without having to worry about crew escape,
all the way up to carrying crew. That is the philosophy that we are working to achieve. To do that, we needed to do some things that broadly help the community that wants to do this, as I mentioned earlier, about developing clear and concise specs and standards so that we can safely put our crew on those vehicles. And further, I think you have seen the annual report of the Aerospace Safety Advisory Panel that had some questions about the detail of our human rating requirements. So that is all part of what we are trying to accomplish, and we believe that will get us a commercial crew capability quicker and safer than if we were to just go off and suggest that we fund a capability.
Senator Nelson. But that was not what the legislation said. The legislation said that $150 million was funding for COTS-D. In this case, you would not even have to pay until the COTS-D partner was able to successfully demonstrate that capability. Is that not right?
Mr. Scolese. It would be dependent upon how we structured it. Of course, we wanted to maximize competition for the vehicle. As you know, there is only one COTS-D provider.
Senator Nelson. Well, when I say "you," I am referring to NASA, and you were not the Acting Administrator at the time. This is an example of where NASA has not followed the legislation. Now, let me ask you this. Would $150 million be enough to demonstrate that capability?
Mr. Scolese. We would have to look at it, but I do not think so, sir.
Senator Nelson. Well, what do you think it would be?
Mr. Scolese. I would have to get back to you on that, but it would be several times that, I would expect, because recall, we have to develop not only the crew portion of it. We have to develop the life support systems, the launch escape systems, the recovery systems. All of those have to be developed and demonstrated, and $150 million does not seem enough to do that.
Senator Nelson. We had a unique opportunity, if NASA had listened and followed the law, we had a unique opportunity this year between the 2009 operating plan and the additional funds provided by the stimulus bill and the development of the 2010 budget to craft a COTS-D plan that would have funded the program at the level that the folks needed. That path was not pursued. NASA did not obey the law. Again, I am not saying it to you because you are the Acting Administrator since January 20, but I want to point this out that sometimes NASA does not want itself to be helped. We have got to get our act together.
And that was the last opportunity for COTS-D. Had NASA obeyed the law and provided the $150M that was allocated in the FY09 budget, SpaceX could have started COTS-D and completed the first seven milestones. When the $150M in stimulus money came in SpaceX would have been on much better footing to claim part of it. Instead, Sen Shelby was able to divert $100M to the development of Ares I, a vehicle that was later scheduled to be cancelled prompting him to insert language into law prohibiting NASA from doing that. Of the remaining $50M, SpaceX received none.
The official position of NASA seems to be that the CCDev program has replaced COTS-D. SpaceX has put in a bid for the new round, which NASA has been prohibited from starting due to the failure of Congress to pass a budget for FY11. Should SpaceX be successful, they intend to start work on the launch abort system which will also allow the Dragon spacecraft to land vertically on land. While I have been assured that the CCDev program will be "milestone based" like COTS, I still have my doubts that it will capture the simplicity of the COTS-D option.
Monday, January 24, 2011
The Easy Way To The Moon
I recently described how to fly to the Moon solo using SpaceX hardware. Someone asked me why I worked out an Apollo 8 style flight and didn't just do a simple free return trajectory.. after all, it's a lot easier - and that's actually the reason - it's too dog gone easy. In order to make this interesting I decided to try to think of the easiest way to do a free return trajectory. Preferably, we'd like to use an unmodified spacecraft and launch vehicle and not have to develop any other hardware.
For a start, let's forget this whole idea of an Earth Departure Stage - we'll just throw the Dragon spacecraft to lunar orbit. This sure is simple, but it only gives us 2585 kg to work with. This prompts the question, exactly what is the mass of an unladen Dragon.. yeah, yeah, I know - African or European?
Looking at the Falcon 9 Users Guide we find that it can throw 9358 kg to 51.6ยบ with an altitude of 400 km. SpaceX will happily tell you that the Dragon can carry 3000 kg of pressurized cargo and 3000 kg of unpressurized cargo to the ISS, and has 1290 kg of propellant. So the dry mass has to be around 2068 kg. It's this big number that prompted me to suggest pulling out the heavy docking adapter, etc, but we're not doing that this time.
At some point there is going to be a bunch of used Dragon capsules, and maybe we can get one for cheap. The actual launch is around $56 million, if you can get SpaceX to stop placating NASA's worst fears: another crew lost and everyone asking why the hell they were flying in the first place. If they keep blowing money on a fancy launch abort system, then who knows.. but it'll probably still be smaller than the $150M per seat that Space Adventures is charging for a ride on Russian hardware.
For a single crew member weighing a maximum of 100 kg, you need 11.839 kg of cabin air, 25.83kg oxygen candles, 52.71kg LiHo CO2 scrubbers, and 45kg food and water. Total is 235.379 kg. From our throw mass to lunar transfer orbit we subtract the dry mass and the consumable mass to find 281 kg remaining.
Remember how we took the fuel out of the Dragon? Let's put 245 kg back. This gives us about 300 m/s of delta-v, which is about 10 times as much delta-v as we need to do a free return trajectory. So even if you're flying like Scott Carpenter you should be able to pull it off.
The remaining 36 kg is margin.. or you could take your dog along for the ride.
I have one last thing to say on this insanity. For a while I've been using 3140 m/s as the required delta-v to from Lunar Transfer Orbit directly to the surface of the Moon. Apparently, this estimate is horrible. According to the Lunar Polar Volatiles Explorer concept mission the required delta-v post-TLI breaks down like this:
| Thermal Control Maneuvers | 70 |
| Cruise ACS | 10 |
| Breaking Burn | 2455 |
| Landing ACS | 20 |
| Landing Site Navigation | 25 |
| Descent | 209 |
| Total | 2789 |
For some inexplicable reason they do the breaking burn with a solid rocket motor with 292 seconds of isp. Their maneuvering thrusters have 272 isp, and the terminal descent is done with 296 isp. With this reduced performance they turn 3492 kg at TLI into 1203 kg on the lunar surface.
They get the wet mass there by flying an Atlas V 401 on a 5 day minimum delta-v maneuver, and although that's just fine for cargo, it just means more consumables and radiation exposure for a human. The Falcon 9 has higher mass to LEO, but lower mass to GEO, but it's also 1/3rd the price, so let's stick with the 2585 kg that a Falcon 9 can throw direct to Lunar Transfer Orbit and use a decent storable propellant isp of 312 seconds. With that we can deliver 1038 kg to the surface.
With a inert mass ratio of 0.15 for the lander, the total payload mass is 651 kg. Using the crew/consumable mass above, and assuming 2.5 days to get there, we can spend 28 days on the lunar surface. Or you could try to fit in propellant to fly back.. I guess, if you wanna die in your bed or something.
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