Aerodynamic Objects Forum

I'm trying to model a spitfire as closely as I can (within certain approximations of course). I have gotten a stable aerodynamic model by following the tutorial series, using the spitfire's wing span (~11m) and shapes, however I had to set the mass of the plane rigidbody to 300kg for it to become aerodynamically stable. When I set the mass to it's actual value (~2500kg) it becomes greatly unstable. I'm wondering if it's worth pursuing the actual mass or if I should be focusing my attention elsewhere. The main reason I'm doing so is because right now it's almost "too stable" and flies more like an acrobatic airplane instead of a heavier spitfire. Thanks! Really loving AO so far.

Is it possible to import an X-Plane aircraft file, and will the physics of the plane be similar to those in X-Plane? Of course, I understand that I would need to develop a parser, etc., but I’m specifically interested in the physics and controls.

I created an airfoil in Blender, exported it as an FBX file and when I imported it Unity recognizes it as a mesh. I can't seem to use this mesh in the geometry game object and have the aerodynamics work. It seems that the aerodynamics only work with Unity primitive meshes. I have a work around where I use a cube game mesh for the geometry to create a wing as described in one of the first tutorials. Then I added a game object into the geometry with my blender mesh and scaled it so that it's larger than the cube mesh. There are two drawbacks to this approach. First is the fact that it's not using the airfoil surface to compute the lift and drag forces (so I'm lying!). Second is that I can't add a control surface. Is it possible to use different meshes than the few that I've seen including sphere, cube, cylinder, capsule?