Previous Dragon Capsule recovery (and it was only once before) was parachute to ocean landing. [1] So presumably to limit the number of things being tested on this flight to a reasonable number they won't try to return it to land.
I am very hopeful that these guys succeed, and will be impressed as hell. Elon is not kidding when he says it is 'tricky.' Although I think the speed thing is over blown (17,000 MPH, wow! except you're both going about 17,000 MPH and you're both going the same direction, so relative speed is more interesting) But you do have to navigate there, rendezvous, and dock.
If successful they will have duplicated everything in Gemini and next up will be the Mercury program (first manned missions) :-)
I think the reason they're saying it's a bit more tricky than people realise is because, even when dealing solely in terms of relative speed, you're dealing with orbits.
If you try to accelerate, you'll actually end up in a higher orbit. It would be like putting down the gas to overtake someone on the highway and end up flying above them and even if you let off the gas, you will slowly drift further away as you're now dealing with a small amount less gravity.
It's tricky, because the common person doesn't have any clue how to relate to three dimensional movement in an orbit.
One of the first programs I ever wrote was a BASIC game called 'orbit' which simulated docking with other space ships and satellites in orbit. No graphics other than things like closing speed and distance from target, sort of like the old Lunar program at the time.
One of the things that always got people thinking it was 'broken' was that you had to slow down to catch up, basically by slowing you moved to a lower orbit and moved faster relative to an object in a higher orbit, and then you went to a higher orbit to slow down (accelerating).
I am very hopeful that these guys succeed, and will be impressed as hell. Elon is not kidding when he says it is 'tricky.' Although I think the speed thing is over blown (17,000 MPH, wow! except you're both going about 17,000 MPH and you're both going the same direction, so relative speed is more interesting) But you do have to navigate there, rendezvous, and dock.
If successful they will have duplicated everything in Gemini and next up will be the Mercury program (first manned missions) :-)
[1] http://news.discovery.com/space/spacexs-dragon-capsule-retur...