Spline navigation with fixed wing

Dear all,
I´m looking for to add the spline navigation capabilitie of the arducopter to a fixed wing aircraft. Is that possible? Maybe simplyfing the kinematic model of the aircraft… Anya dvise to do this please?

Any progress on this? I could use it for Rover, for a boat which has dynamics more like Plane than Copter, so I hope to follow on the heels of the plane guys asking for this.

I see Issue 2374 on Github for this, but no resolution there. Shouldn’t this be a pull request instead of an Issue?