Some detail on what Elon Musk is proposing. I like the idea of landing directly on the launch mount and attaching a new payload while the stage is refueling. It’s sporty. If they’re serious about this architecture, it suggests that some of SpaceX’s near-future developments will involve a different sort of launch mount/hold-down scheme that facilitates this idea of landing a returning stage directly on the mount, rapid checkout/turnaround of returning stages (without moving them from their landing spot), and a means of rapidly integrating payloads to boosters at the pad (something that DARPA FALCON and ALASA have worked on, albeit at a significantly smaller scale).
But it strikes me that they’d be better off in the near term to simply have a second booster ready to move to the pad with the refueling vehicle. Sure, it’s got a gee-wiz factor to land directly on the launch mount, refuel and restack, and launch again, but I don’t see how developing all of that special-purpose technology could compare economically with simply building a second reusable booster.
We’ve landed numerous craft on Mars, and this wouldn’t have capabilities that have made robotic explorers so useful. However, it would be the first designed to bring humans to Mars, quite a milestone. While the company has indicated that it doesn’t intend to provide details on the program until September, there is some very interesting potential .
Besides demonstrating the descent and landing technology, the mission could add greatly to our knowledge of radiation exposure and the long term performance of life support systems without a team of highly skilled (and motivated!) mechanics in the loop. I wonder if the mission could include a simulated crew, consuming oxygen, expelling CO2 and other waste. Of course the Dragon craft wouldn’t be the only habitable volume for the six month trip in a manned mission, but any opportunity to test systems under challenging, real-world conditions would be welcome.
The SpaceX and Tesla founder said this week that he personally wants to visit space within the next five years and thinks that his company will launch a mission to Mars by 2025…
Personal space travel ambitions aside, Musk also talked about how important it was for mankind to reach Mars. He said that SpaceX is planning to reveal its next-generation spacecraft at September’s International Astronautical Conference in Guadalajara, Mexico.
That could be the next step toward eventually sending human beings to the Red Planet — something Musk said he thinks will happen by 2025. It’s an ambitious goal considering that NASA’s current plan is to send humans to Mars in the 2030s.
Note that in the Ares Project universe, 2025 is the when the Ares I mission to Mars is launched. Granted, it’s a joint US-Russian mission in our case, but it’s enabled by commercial space activity in LEO and on Luna, and is followed by commercial settlements.
Maybe NASA will have the first manned Orion/SLS flying by then.
Watching this, I had to wonder what it would have been like had NASA done something like this with a Saturn V first stage back in the day…
What I find especially interesting and useful about SpaceX’s Grashopper effort is the applicability to Mars landers and (later on) surface-orbit shuttles – which is probably the long-term point of the exercise, given Elon Musk’s interests. If you picture this vehicle spread out at the base a bit more into a conical shape, you’ve got the Ares Project ERVs. Scale them up a little bit more from there, and you’ve got the MDA’s surface-orbit shuttles. Add an Orbiter-sized payload bay, and you’ve got the new cargo shuttles which will make their appearance early in Ghosts of Tharsis.
Of course, the obvious problem this technology poses for In the Shadow of Ares is that this testbed is actually a better pilot than Daniel Martinez. Granted, he had no alternative under the circumstances but to deactivate the autopilot and land Odysseus himself (and succeeded), but his accuracy was somewhat less impressive than what’s shown here.