Yes, thank you, that looks promising. Unfortunately, I am still
pretty new to KML and am even more green to the new Tour features.
The complication I see with the timeline method, from the example that
you posted, was that each timestep had to be written out as a separate
block of code, and there were over 200 timesteps! I was hoping that
you could read in an external file that just listed the time,
location, and orientation, so you could get some smooth motion from
the airplane from a huge number of data points (generated in Excel or
something). Maybe you could do this with the new Tour features?