Hi there!
I'm working at the moment on a little tool which positions (or should) your plane 4nm away from the runway. I already got it working setting the altitude and speed, but when it comes to longitude and latitude i have a problem.
As said i want to position the aircracft 4 nautical miles away from the runway. I thought it should work with picking the runway coordinates and adding values to the latitude and longitude (Offsets 0560, 0568). I was able to calculate with the law of sines the the values i have to add. But those values are in nautical miles (because I used the 4nm as m