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SpaceX Shows Off Its Interplanetary Transport System in New Video (techcrunch.com)
Elon Musk's SpaceX plans to send humans to Mars with a ship called the Interplanetary Transport System, the company announced today in a video, revealing how the ITS will actually work. The ITS will be capable of carrying up to 100 tons of cargo -- people and supplies -- and it will utilize a slew of different power sources en route to Mars. From a report on TechCrunch: SpaceX has released a new video showing a CG concept of its Interplanetary Transport System, the rocket and spacecraft combo it plans to use to colonize Mars. The video depicts a reusable rocket that can get the interplanetary spacecraft beyond Earth's orbit, and a craft that uses solar sails to coast on its way to a Mars entry. The booster returns to Earth after separating from the shuttlecraft to pick up a booster tank full of fuel, which it then returns to orbit to fuel up the waiting spaceship. The booster craft then also returns to Earth under its own power, presumably also for re-use. The solar arrays that the spacecraft employs provide 200 kW of power, according to captions in the video.The Verge is live blogging SpaceX's conference, and has details on specs.
They show the spaceship being launched first, to be refueled by a drone tanker. Shouldn't the tanker be launched first? Unlike the spaceship, it can wait indefinitely in orbit if the second launch is delayed.
I think that whole segment is full of artistic liberty. I'm sure they'll have reuse and fuel boosters and "quick" turnaround, but the Formula One pit stop where the rocket lands right next to a fuel pod, it is hoisted in place and is ready for liftoff again is fantasy. I'd guessing that logistically they'd always do it backwards with a previously landed and refurbished rocket launching first with the fuel, then if successful a new rocket with people that afterwards lands and it refurbished. But I think it's fair to leave practical details like that out to convey the essence to non-nerds.
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The Mayflower's tonnage was around 180 tons. Tonnage is how water a ship displaces. The actual storage capacity is unknown but would have been a small amount of that.
No, a ships displacement is measured in tons but the 180 tons of storage is just that. The estimate of Mayflower's displacement is somewhere in the neighborhood of 250 tons and total weight about 400 tons including some 130 tons of ballast. Of course all these are approximations based on the given dimensions of the ship and what was typical for the period.
And that's different from NASA/Energia how?
Space ex has a failure rate 10 times worse. The FAA needs to step in and force them to take safety seriously.
Failing, as it turns out, is an effective way of trying new things and finding out what works. Painful, but very very effective.
The best thing about SpaceX is that they aren't afraid of failure.
The worst thing that could happen would be if the FAA steps in and no longer allows companies to fail. If you aren't allowed to fail, you're not allowed to innovate. The only way to take the chance of doing new things is by taking the risk of failure.
Or, to use a quote: “Only those who dare to fail greatly can ever achieve greatly.”
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Consider the fact that this is a promo video, just meant to demonstrate the architecture in layman's terms. In reality, sounds like during the 2-year wait between launch windows, these things will by flying continually, bringing up cargo and fuel to prep the transports. Crews will be sent up last, right before departure. Many ships are meant to make the trip simultaneously.
You would think... but humans haven't gone beyond low-earth orbit since the Apollo program was cancelled. That was arguably the pinnacle of manned space capability and we still haven't matched it with modern systems.
LOREN GRUSH 3:21:49 PM EDT Tanker will go up 3 to 5 times to fill up the ship.
https://live.theverge.com/elon...