
Originally Posted by
406
^^^I have a lot of thoughts on the topic, but probably shouldn't put them online. It is risky regardless. But I have never seen an explanation of why the sky crane is better than designing the powered descent stage so the rover sits on top or in and then drives off/out after landing.
Play some Kerbal Space Program. Seriously. Rocket science is really, really, really fucking hard. So many trade offs and it all boils down to deltaV.
As for sky crane vs. lander, it's weight saving (don't need landing legs, just use the rovers wheels and shocks) and a big improvement on the vehicle center of gravity in relation to center of thrust in order to keep the rover wheels side down on landing, especially on uneven terrain. Lots of physics benefits as long as the computers and sensors hold out.
I've concluded that DJSapp was never DJSapp, and Not DJSapp is also not DJSapp, so that means he's telling the truth now and he was lying before.
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