The problem is that the model code gets the roll/pitch/yaw from the FDM and then applies it to the 0,0,0 point in the 3D model, which happens to be the tip of the spinner for the Warrior (as it is in the weight-and-balance section of the POH). YASim isn't doing anything wrong; the model code just doesn't know where the aerodynamic centre of the model is, so it doesn't know what point to rotate the plane around.
With Jim's suggested patch, the camera rotates with the plane in the chase views, so it *looks* like the plane is rotating in the right place, but it is not.
So, given that the aerodynamic centre of an aircraft can shift based on loading and flight conditions, how can we report that from the FDM back to the 3D model code? Is this something people worked out in a previous thread? I'm assuming that the 3D model and the FDM config file are using the same reference datum for coordinates.
All the best,
David
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