-Orion-

Hm, I moved the center of mass and center of lift at pretty much the same place, and moved the engines further back so they could provide more torque with their gimbal but the problem remains pretty much the same. I could add more control surfaces but a well designed plane is supposed to fly straight without any input right?

Here it is. I made sure it was behind the center of mass

I've been stuck on this for hours. My idea was to create the biggest spaceplane I could come up with just for fun. Problem is it just won't lift, and I don't mean off the ground, I mean at all. I hacked the gravity to give it some speed and height, but once I turned it back on it started to nosedive uncontrollably. I changed the design of the wings a few times but the problem remains, it just doesn't want to pitch up. I can't really figure out what's wrong. Is it the control surfaces? The wings?