Jittery Duna

[xerogravity]

I'm trying to put a space station core into a 200k km orbit of Duna but whatever design I try (sorry no pics, away from my KSP setup) I cannot get the craft to be stable, it pitches around like a small boat at anchor.
I have reaction wheels powered up and running but it doesn't help. The same craft is rock steady in Kerbal orbit.

The only way I can dock at the moment is to cheat: get very close, hit warp then unwarp and dive forward before it has time to start gyrating.

Is the Duna/Ike system inherently unstable, is this a know "feature" or am I expecting too much stability from a medium sized craft (4 orange tanks laterally fixed to a core tank - I initially tried a radially linked arrangement but though that might be the problem so tried a more compact design to no avail.

As you can appreciate, trying to get this hardware to Duna takes too long to keep playtesting different designs!

[Right]

Thats annoying. A craft that is stable in vacuum should be stable in any orbit. Is it a result of SAS or does it happen without it? If so, I'm not sure I've had that happen with 4 orange tanks.

Try this mod: [url]http://forum.kerbalspaceprogram.com/threads/55657[/url]

Also, you can use the hyper edit mod to teleport to your destination - get an idea if a craft will work properly in its destination without having to fly it over 100 times.

[Aethon]

In previous versions, any clipped parts (even using the new editor widgets) would (not always) cause orbits to fluctuate. I'm not sure about this version because I never clip any parts on spacecraft anymore.