This was my first attempt at 3d modelling. I modelled these in Infini-d. sometime in the late eighties. I used bezier splines and remember that the splines used to get into knots for no apparent reason.
I did a quite complex animation of the three planes taking off, racing around a set of pylons and landing. Obviously at the time it was all key-framed. And if I remember correctly I left the Amiga 500 to render for about 3 days.