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I believe until October. (IIRC from the pre-launch conference)


Damn, I'd love to try this. It's awesome!


It's a shame because I bought a Lenovo laptop about half a year ago - I love it!

I wiped the preinstalled version of Windows so I'm free of this issue. I'd love to install Linux on it but wireless doesn't work in any of the distributions I have tried.


"Ship itself is fine. Some of the support equipment on the deck will need to be replaced..."

https://twitter.com/elonmusk/status/553856479590359040


"Didn't get good landing/impact video. Pitch dark and foggy. Will piece it together from telemetry and ... actual pieces."

https://twitter.com/elonmusk/status/553857574005915648


Don't military pilots say a carrier landing is much more difficult than landing on solid ground? Because the area is small, and not stable.

It seems like SpaceX have had to start out by attempting the most difficult possible landing scenario (for good safety reasons).

So they did OK, considering the difficulty.


Well, carriers have significantly shorter landing strips, require the pilot to either hit a cable or immediately take off again and usually move themselves to provide more favorable wind conditions to pilots.

SpaceX drone platform is easier in that respect, since the rocket is landing vertically and alot of those factors are mitigated. It's still a extremely hard and complex problem to solve - it IS rocket science after all ;)


It's an interesting comparison. At least, with a carrier you can go around, but I suppose that, for an aircraft landing on a carrier, the moment of irreversible commitment to landing maybe comes a second or two earlier than it does for SpaceX.

I don't know if the SpaceX vehicle is programmed to back off and wait if a big wave rocks the platform, but it could do that, wind permitting (edit: no, it couldn't, apparently, see reply by Denvercoder9). Fuel is limited, but it seems like it should be able to hover for a few seconds and wait for the platform to stabilize if necessary.

Anyway, they're not developing a sea-landing vehicle, so it's understandable if they don't spend so much time thinking about that. It's designed to land on solid ground, I think and the ground doesn't usually move, after all.


The thrust-to-weight ratio of an empty Falcon 9 is far too high to hover. Burn the engines too long and it'll just ascent again.


Their F9R test vehicle could hover. Isn't that essentially a mockup Falcon 9 first stage, but with only the centre engine?

https://www.youtube.com/watch?v=ZwwS4YOTbbw


I wonder how feasible / useful it would be to have realtime best-guess altitude from accelerometers / bouys / laser line-of-site relays etc to give the rocket up to date info to adjust thrust / vector to the drone-ship.

Or do they already do this?


Almost certainly they have really good GPS and inertial sensors on both. That should be enough. Any line of sight like laser or visual can't be trusted due to weather.


I doubt that heavy sea conditions are factored into design - I think currently the way to avoid that is simply not to launch when the weather is bad around landing and launch area. That's probably the cheaper and simpler solution.


I'd suspect the structure on a Falcon 9 isn't as strong as a F/A-18, relatively speaking. Also the F/A-18 engines don't provide downward thrust.


Wonder if an actuating deck would be worthwhile


Would you mind if I made an Android version?


We are planning to do this. You are not allowed to do this.


You won't be able to avoid clones which is probably why you're being down voted, but fwiw it works really well with a touch screen and would make a great app.


Awesome, thanks!


You're welcome! Enjoy the course!


I do this! Very good exercise for deciding if things are worth it.


Any guides on how to do this? I'm a programmer and my brother is a music producer.... he has a few ideas for plugins but I couldn't find any libraries online! Thanks!


The two main resources I refer to (and hang out around and in) are:

the KVR DSP forum: http://www.kvraudio.com/forum/viewforum.php?f=33

and the music-dsp mailing list: http://music.columbia.edu/mailman/listinfo/music-dsp

Even armed with all the resources in the world, though, I cannot stress how important just jumping in is. Write a couple of basic plugins and you'll get a really good feel for how the pieces fit together, what's important in the algorithms, etc.


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