I'm in the middle of a Duna & back challenge in a small spaceplane. When coming in to land, I started following this valley/canyon hoping to find lower level/flatter ground. I may have done, but this canyon took me close to the polar biome.
Now the time has come to return to Kerbin. However, when I take off due east, 90 degrees on the compass, I end up in a highly inclined orbit. Am concerned that if I eject from Duna in such an orbit, I'll end up needing a massive ascending/descending node burn mid course correction on the way back to Kerbin.
What's my best option here?
1) fly due south in the atmosphere, at a slow, economic subsonic pace, before turning due east then gunning the engine and attempting to get to orbit
2) correct the inclination from orbit
3) don't bother trying to correct, just do the bare minimum to eject from duna SOI and correct your inclination/complete the transfer burn back to Kerbin from solar orbit?