Delete me, please

[Benie]

Nevermind this. I found the problem.

Edited July 23, 2013 by Benie
Delete me, please

[Captain Sierra]

Weighing down the front is not the answer. What is happening is somewhere something is not symmetrical. It looks like you built it in the space plane hangar, which means something could be on the top and not the bottom. Even this slight perturbation in the center of mass can cause it to not burn straight. I suggest going into your save folder and finding the ship, then transfer it to the VAB and redo all the struts and small things with the radial symmetry in the VAB.

Save file: KSP\Saves\<your_save>\SPH move to KSP\Saves\<your_save>\VAB

EDIT: I see what KSP X parts you used

[Benie]

I found out when the tiny ship docks with this, it causes a weight inbalance. It flies straight without it.

I'm going to have to find out where to best balance this thing when docked, to make it still work.