Spaceplane landing

[ElWanderer]

To include:

1. Terrain avoidance
2. Bleeding off excess height/speed if necessary with turns
3. Turning onto the right heading for the target landing site/runway and aligning with it
4. Ability to use engines (if available) would be nice if dropping short
5. Actually landing
6. TOGA (Take Off/Go Around) ability would be nice to have if we overshoot

This all sounds viciously complicated. For landing back at the KSC we can make a few simplifications/assumptions, but automating a rough-landing on Laythe would be, erm, wow...!