Hmm, landing legs is a neat idea, nice and simple.
So you would like living in a mini for a week? :lol:What about a dockable fuel tank for the XR0?
An XR2 carries the tank to orbit, leaves it there, where an XR0 then docks (actually uses the XR payload system) to extend it's range so it can go to the Moon?
So you would like living in a mini for a week? :lol:
Does the XR2 have an extremely inefficient wing, similar to the XR1 version 1.5? If so, perhaps this can be upgraded for the XR2 Mk II.
From flight testing, it appears to me that the XR1's wing was implemented in the vessel DLL with the same parameters as the DG: at least, PI times aspect ratio times efficiency factor seems to = PI * 1.5 * 0.7. With the XR1's aspect ratio actually near 4 (wing reference area appears to be 80 m^2), this makes it fly like a plane with an efficiency factor of around 0.26, which seems far too low for a futuristic design.

With a powerful and efficient nuclear power source at the heart of the vessel, electric power is an inconsequential by-product.Is there maybe going to be a slightly more advance EPS system? everything else is controlled but there's just a magic never ending power source.