Why the SpaceX landing is Better than Apollo 11
lochief.com
lochief.com
The Apollo missions are literally the reason that any of us are able to do modern aerospace at the capacity we are. I appreciate the sentiment of the author, but in terms of progress, it's almost like saying that Chuck Yaeger's flight in the Bell X-1 was more important than the Wright Flyer.
Both are extremely important milestones, but landing on the Moon, in under a decade, from near-zero, is more impressive. And I'm biased toward SpaceX.
NASA had less technology when some of this original work was done (and still does in some cases), there are budget considerations, public organization issues, political maneuvering and plenty of monopoly contracts meant to make as money as possible instead of improving technology. They're great at what they do but they are far from an optimal organization.
Because Spacex doesn't have to deal with these things. In fact they benefit from the Nasa funding right now as a major source of revenue. They wouldn't have survived if they were just self-funded. Also they can get talent from NASA and other organizations that have already done a lot of groundbreaking work with pioneers in the field.
Just to be clear, Spacex has focused on reducing the launch costs but they haven't yet and they still have a long way to go to actually delivering people and heavier loads in a repeatable process. They've also taken about 15 years to get to the last launch so none of this was quick.
But I don't think it's possible to judge historical significance of anything with so little hindsight available. Give it another few decades and then let's talk about what the most significant spaceflight development was.
Let's repeat that so there is no misunderstanding. APOLLO 11 LANDED ON THE MOON.
Remember all those folks dismissing what Blue Origin did because what SpaceX did was so much harder? Well, what NASA did a half century ago was orders of magnitude harder.
Earth escape velocity: 11,000 m/s, energy to propel 1kg to escape velocity: 60MJ.
Moon escape velocity: 2,400 m/s, energy to propel 1kg to escape velocity: 3MJ.
Moon based interplanetary travel is 20 times more efficient than Earth based interplanetary travel. A robotized Moon base would make economic interplanetary travel a whole lot cheaper. Step 1 for a Moon base is landing on the Moon, so I wouldn't dismiss Apollo just yet. Perhaps they were 100 years ahead of the times, but their heart [and mind!] was in the right place.
The problem is that the Moon does not have significant resources, so you can't really make anything on the Moon and then launch it from there. It may be possible to make some propellants, but not much else. As a refueling station, it could be a good idea. But for anything other than fuel, the Moon doesn't really work out as you have to lift it from LEO first. Entering Space by Robert Zubrin has more detailed technical arguments about this.
WITH THE TECHNOLOGY AVAILABLE IN THE 1960s.
SpaceX is cool - no doubt - but come on!!
I'm just of the opinion that the challenges that NASA had to overcome 50 years ago to get to the moon involved alot more "unknown" information.
I think anyone who has wanted to do "something that's never been done before" can appreciate the trailblazers that had no other option than to make an educated guess because algorithms, processing power, failure modes did not exist.
Exactly, in 1969, sir, they had to code everything WITH NEGATIVE TIMESTAMPS [1]. Apart from the joke, it underlines the prehistoric era of technology at the time.
http://www.commitstrip.com/en/2015/10/06/before-timestamp-0/
Exactly. And did it when computing power and knowledge was vastly less than it is today(not to mention that what SpaceX did was standing on the shoulders of giants or whatever that saying is...)
But let's not get too carried away, ok? Because with sentences like:
> Mars, asteroids, the Oort cloud and beyond, all with technology and physics we thoroughly know today.
and:
> The SpaceX future is completely open, currently only limited by the amount of atoms in the universe.
it really seems like this is way too optimistic. I mean it's not like SpaceX has cracked interstellar travel or anything. Mentioning the Oort cloud for instance is quite weird : we barely can send un-manned spacecrafts there. And even if we could, it's such a big place that bodies there are separated by astronomical units of emptiness. What exactly would men do there?
Also, even if we can bring the cost of space-flight to something comparable to the cost of an intercontinental airplane trip, I would remain skeptical about mars colonization. The fact remains that mars is a gigantic barren waste land, with a tenuous, oxygen-less atmosphere, barely any water, frigid temperatures and continuous radiations from the sky.
Imagine the worst place on Earth where to spend your holidays. If a travel agency tells me that prices for a plane ticket to this place have dropped by 99%, I'd still would not want to go there. I wouldn't even go for free.
This is true for micro-sats, but an awful lot of high end communications sats as well as (I'm assuming) the deep space exploration vehicles cost on the order or 10x their launch cost. Dropping the launch price isn't going to drop the total price tag by much.
I imagine being able to cheaply put tons and tons of equipment in orbit and do the build up there would remove all those constraints and maybe allow the use of cheaper construction and technology.
Not sure I agree or disagree but it's a POV.
$1B seems short for a mars colony anyway.
All we could do would be to speed up the learning a bit by throwing money at building multiple test case rockets without any means of creating a sustainable system.
So yes, SpaceX has made a huge step. It will be interesting to see how others approach the problem (and everyone who wants to be competitive in the launch space will have to have an answer at some point). And yes, not a lot of people have realized how big a step that is. But a few years from now when SpaceX goes public perhaps and their S-1 shows just how much of an advantage this gives them, I'm confident people will look back and say, "That was when we re-entered the space age for 'real'."
I cannot judge how accurate that narrative is though.
Second, the Saturn V/Apollo mission was a diplomatic show of muscle. Those who believe the SLS will be the future of manned space travel fail to appreciate that without the pressure of the Soviet Union, there is absolutely no way the project will outlast the attrition of a 10-year non-wartime Congressional budget session.
And all that is moot anyway, as the Saturn V and Apollo systems were built extremely fast, and to do that meant using a myriad of sub contractors [0].
According to Ars[1], the SLS basically had to reverse engineer an F-1 that was pulled from one of the Apollo launches. There were no extant blueprints for a massive LOX/RP engine, and few people alive who had any experience with it. SCUD missile builders with deep government contacts and ensured the STS (Space Shuttle) system would largely rely on the force of solid boosters, with the LOX engines significantly reduced in size and totally different from the Saturn V boosters.
More than anything, the Ars article points out how absurdly homebrewed the Saturn V was. Hand drilled nozzle ports? The system was hacked together for one purpose, and then discarded. What Space X is doing, and what SLS will fail to do, is make orbit accessible to people besides a government that controls the world's fiat currency and can basically do what it wants provided it has the political capital (as it did during the Cold War).
The Saturn V and Apollo system will stand as one of the greatest achievements of the modern era. But, like the Pyramids of Giza, it did little to spur a sea change of similar technology. There is no great proliferation of massive pyramids after those at Giza were built. And there was no great proliferation of human landings on extra-terrestrial surfaces after Saturn V.
Elon Musk's goal in space is more similar to George Fuller, using revolutions in contracting to build big buildings cheaply. After Fuller, huge and tall interior spaces became cheap to build and those buildings proliferated around the globe.
0: http://amyshirateitel.com/2011/04/03/the-lost-art-of-the-sat... 1: http://arstechnica.com/science/2013/04/how-nasa-brought-the-...
What the Apollo missions pulled off is still mind boggling, today: people landed on the moon, walked and drove around, and came back safely.
That being said, landing actual people on the moon decades ago with less technology and sheer determination is much "better" in my book. SpaceX is cool but let's not forget about the true pioneers.
Oh, boy.
Putting things in and out of context according to the story that needs to be spun has a bright future as a literary genre.
I suspect the purpose of this statement is to conjure up the ghost of, and likely draw parallels to another "revolutionary genius". This trope needs to die: it undermines the effort put in by the giants upon whose shoulders these alleged "ubermensch" stand.
But the future isn't quite over yet and SpaceX has one advantage, they are moving whereas Apollo 11 is frozen in time.
Calling SpaceX 'better than Apollo 11' indicates a poor understanding of the situation back then. Apollo 11 was a milestone, reusable rockets is also a milestone, but a completely different one.
I'm wondering how the author would have looked at SpaceX had the situation been reversed, in case Apollo 11 would have been the mission that allowed NASA to launch a rocket to a good bit of orbital velocity and then to capture it for re-use and SpaceX would have put a man on the moon last week. Would they still feel that the SpaceX achievement was the smaller one?
http://history.nasa.gov/SP-4029/Apollo_18-16_Apollo_Program_...
The "spacecraft development" line you're looking at includes only charges for 1962, while the program was still in its earliest phases, most likely before mission mode (and the separation of command and lunar modules) had even been decided.
And you can multiply all those figures by about 7 to correct for inflation and give you the rough cost in today's dollars.
Apollo was hugely expensive.
Space-X says they hope to reuse maybe 75% of a booster. Boosters probably go back to the plant to be rebuilt, not to the pad to be launched again.
Rockets have been mass produced before. Thousands of ICBMs were produced on assembly lines.
The tyranny of the rocket equation still applies. Spacecraft are almost all fuel mass (85-95%), and can't be built with the robustness level of commercial aircraft, which are only 40% fuel at takeoff. Fuels can't get any better; liquid hydrogen/liquid oxygen is as good as it gets. Unless and until we get fission or fusion propulsion, space launches will be a marginal technology.
The Apollo program originally included a nuclear-powered upper stage. It's too bad that never launched. Nuclear rocket engines have been built and ground tested, but they're rather messy.
They plan to reuse the entire booster, only refuel will be is necessary.
It's going to be very hard for anyone to create a perfectly usable rocket that all comes back for reuse, possibly never based on how cargo is sent up there in the first place.
SpaceX couldn't do what it's doing without NASA's prior accomplishments in space flight, including Apollo 11.
Saying the Apollo mission "was never going to lead to anything sustainable" is absolute nonsense. It lead precisely to where we are today.
1. Only a portion of the rocket is reusable, you still pay full price for the upper stage.
2. The part that is reusable has to be built better to survive multiple uses and needs to have extra equipment for recovery, so it's more expensive.
3. The performance of the reusable pieces is compromised due to the extra weight of the fuel and equipment for recovery.
4. There are still refurbishment costs after every flight, presumably we will know soon how significant these are.
5. You lose economies of scale in making the boosters since you make fewer of them.
Overall I would expect that with all of these together you'll see maybe a 30% total cost reduction. A lot of these same arguments were made about shuttle costs and reusability, and it didn't pan out. SpaceX certainly can and has learned from that failure, but many of the basic mathematical realities still apply.
/s
Apollo and SpaceX, Apples and oranges.
I don't understand. Did the Apollo program do that? Did it even intended to? NASA is a government agency, so I guess you can tell that "people", and more accurately american citizens, own it, but isn't it a bit abstract?
For the common Joe, NASA and SpaceX are two organizations that are just as opaque and difficult to join or "own".
There really is not as much difference as you seem to think, and I don't get why only Apollo 11 could be an "event for all mankind". Also SpaceX certainly is the "realization of a dream", at the very least of Musk's dream.
Engineers who worked at Apollo-era Nasa also went on to all sorts of things, carrying lots of knowhow with them. Even those working for contractors operated under a different regime than today. But the similar knowhow at SpaceX is today proprietary. We won't see any SpaceX engineers walking over to boeing to replicate the technology, not without lawsuits every which way.
I don't mean to criticize, just to illustrate that today's space-fairing corporations are not interchangeable with Nasa.
For those of you scoring at home, SpaceX is 1 for 4 on soft landing with spectacular landing failures for CRS-5 and CRS-6. CRS-7 exploded on the pad at launch.
The Apollo program sent 8 missions TO THE MOON AND BACK with only one failure. Everyone returned from every one of those missions and nothing exploded.
If you were going into space, who's rocket would you rather be sitting on top of: NASA's 1969 Saturn 5 or Elon Musk's 2015 Falcon 9?
* Parachute hardware adds non-useful weight
* Salt water landings increases refurbishing costs
* Active guidance ("hitting the X") allows for less logistics
* Parachute landing technology would not work on other solar system bodies, meaning less tech would transfer to Mars
Then there is the technical problem, we're talking about 14tons falling from space at speeds up to 5000mph. Desiging a parachute for that job is anything but simple.
Lastly, it just doesn't scale. Consider that they are designing a rocket for moving huge payloads to Mars. This landing method should scale up to a Saturn V class booster just fine, parachutes just keep getting harder as the weight goes up.
Landing a $60mil rocket is an achievement. Going to the _farking moon_ via 5 F5 engines strapped to your ass that were designed using slide rules and graph paper is impressive. You're comparing popcorn tins vs fruitcakes.